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高一物理必修一复习提纲V1.0

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e strict t hr ee real" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "one country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral aff airs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forwar d new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For exam ple, every party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on full deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the const ruction of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt excerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to f ocus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

公式整理 1)匀变速直线运动 1.平均速度 V 平=s/t(定义式) 2.有用推论 Vt2-Vo2=2as 3.中间时刻速度 Vt/2=V 平=(Vt+Vo)/2 4.末速度 Vt=Vo+at 5.位移 s=V 平 t=Vot+at2/2 6.加速度 a=(Vt-Vo)/t {以 Vo 为正方向,a 与 Vo 同向(加速)a>0;反向则 a<0} 7.打点计时器实验用推论 Δs=aT2 {Δs 为连续相邻相等时间(T)内位移之差} 8.主要物理量及单位:初速度(Vo):m/s;加速度(a):m/s2;末速度(Vt):m/s;时间(t)秒(s)位移 (s): ;米(m) ;路程:米;速度单位换算:1m/s=3.6km/h。 2)自由落体运动 1.初速度 Vo=0 2.末速度 Vt=gt 3.下落高度 h=gt2/2(从 Vo 位置向下计算) 4.推论 Vt2=2gh (1)自由落体运动是初速度为零的匀加速直线运动,遵循匀变速直线运动规律; (2)a=g=9.8m/s2≈10m/s2(重力加速度在赤道附近较小 ,在高山处比平地小,方向竖直向 下) 。 3)牛顿运动定律 (1) F 合=am(F 为物体所受外力之和) 4)力(常见的力、力的合成与分解) 1)常见的力 1.重力 G=mg(方向竖直向下, g=9.8m/s2≈10m/s2, 作用点在重心, 适用于地球表面附近) 2.胡克定律 F=kx {方向沿恢复形变方向,k:劲度系数(N/m),x:形变量(m)} 3.滑动摩擦力 F=μFN {与物体相对运动方向相反,μ:摩擦因数,FN:正压力(N)} 4.静摩擦力 0≤f 静≤fm (与物体相对运动趋势方向相反,fm 为最大静摩擦力)

dee pen. In G eneral, periodic high priority on learni ng, easy to gras p and pra ctice : recurr ent learni ng factors , long time, pron e to "sluggi sh". Le arni ng programmes are expli citly required to le arn educati on i s not a n event, but to highlight t he normal education, differentiated l evels, heart, catch a fine practice, the real party's ide ologi cal and political construction in the ever y day, often. This requires that we do a g ood job pha se focuse d learni ng bas ed on knowle dge contests, comments on rewar ds in t he form, pay s pecial attenti on t o recurri ng studies . To handle the relationshi p betw een s oli d s trong to learn a nd a l ot to learn. F or any unit or i ndivi dual, obje ctively s peaking, in the process of carrying out the party Constituti on Party rules a nd s pirit , there i s a problem with strong a nd weak , whi ch we nee d to pay attention to the actual learni ng content, a nd handle the relationshi p betw een solid str ong to lear n and a lot to lear n. On one ha nd, we must always kee p a humble attitude, good deal, Conti nue T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s p n io c a r t x e 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, alway s keep the spirit of energeti c, pegge d to the weak link t o find ga ps, fill the short Board. S hort Boar d iss ues s hould not be underestimate d, the sayi ng goe s, have short Board, add a s hort. T his tell s us , there are w eakne sses short coming s and do not be afraid, fe ar is a blind eye a nd not to re pair, the result i s poor is w orse a nd t he weak we aker. United States politics home zham usi, a nd Wil son and preve ntion crime lear n experts qiaozhikai lin pr opose d has a famous of broken window t heor y, that, if a buil ding H ouse ha s a fan window of glass broken has, a nd thi s fan Window s no get timely re pair, others on May to broke m ore of window glass, time a l ong , these damaged of window on to people caus ed a disor der, a nd matter of feel, res ults in t his mas s errors think no attention, a nd no manag ement of atmos pher e Xia, some bad culture , and violati ons behavi or on will breedi ng and s pread. Reality life in t he is s uch, cl ean of wall S hang , sudde nly was posted ha s a Zhang ad, if didn't people manag ement, not out days thi s wall Sha ng on will appeare d greatly small many of advertisi ng; private take mes s built phenome non is s o, bega n cir cle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dar e built a hut live people, time l ong has didn't pe ople t ube, w ants to t ube S hi on difficult has. Therefore, the soli d strong is importa nt, a lot to lear n is al so important. T hird, key, grasp the learni ng objective of education is to train a qualifie d party member "two" stu dy and educati on to its core e sse nce i s learni ng and doi ng. Learni ng and doing are m utually rei nforcing, if optical ca n't do, st udy leave, rea l learni ng defici ency, w hile s weating, wi nd a nd wate r, "one fishi ng white" be came "fake words a nd not the mules". Lear ning party rules did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, learn and do, i magine thi s "learni ng", how do y ou meet the e ligibility re quireme nts of party member s. Therefor e, the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e str ict t hree real" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "one country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral affairs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, every party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on f ull deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the construction of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt ex cerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to f ocus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

高一上 物理期末考试知识点复习提纲 专题一:运动的描述 【知识要点】 1.质点(A) (1)没有形状、大小,而具有质量的点。 (2)质点是一个理想化的物理模型,实际并不存在。 (3)一个物体能否看成质点,并不取决于这个物体的大小,而是看在所研究的问题中物体 的形状、 大小和物体上各部分运动情况的差异是否为可以忽略的次要因素, 要具体问题具体 分析。 2.参考系(A) (1)物体相对于其他物体的位置变化,叫做机械运动,简称运动。 (2)在描述一个物体运动时,选来作为标准的(即假定为不动的)另外的物体,叫做 参考系。 对参考系应明确以下几点: ①对同一运动物体,选取不同的物体作参考系时,对物体的观察结果往往不同的。 ②在研究实际问题时, 选取参考系的基本原则是能对研究对象的运动情况的描述得到尽量的 简化,能够使解题显得简捷。 ③因为今后我们主要讨论地面上的物体的运动,所以通常取地面作为参照系 3.路程和位移(A) (1)位移是表示质点位置变化的物理量。路程是质点运动轨迹的长度。 (2)位移是矢量,可以用以初位置指向末位置的一条有向线段来表示。因此,位移的大小 等于物体的初位置到末位置的直线距离。路程是标量,它是质点运动轨迹的长度。因此其大 小与运动路径有关。 (3)一般情况下,运动物体的路程与位移大小是不同的。只有当质点做单一方向的直线运 动时,路程与位移的大小才相等。图 1-1 中质点轨迹 ACB 的长度是路程,AB 是位移 S。 C B A 图 1-1 C B A

d eepen. I n Ge neral, periodic hig h pri ority on le arni ng, easy to gras p and practi ce: re curre nt learni ng factors, l ong time, pr one to "sl uggis h". Lear ning pr ogrammes are expli citly require d to lear n education is not an eve nt, but to hig hlight the normal educati on, differentiat ed levels , heart, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial at tenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or in dividual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betwee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue 4 6 E Q Z R Y 'I D x T U j3 k B F . b P A O C W z H " S ; v n d q M y 5 1 0 2 h t g u r G ,X f m o lw ia c e p s 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortcomings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United States politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, time long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to it s core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study leave, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "lear ning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

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guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e strict t hree rea l" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "o ne country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral aff airs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, ev ery party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on full deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the constructio n of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt excerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to focus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

(4)在研究机械运动时,位移才是能用来描述位置变化的物理量。路程不能用来表达物体 的确切位置。比如说某人从 O 点起走了 50m 路,我们就说不出终了位置在何处。 4、速度、平均速度和瞬时速度(A) (1) 表示物体运动快慢的物理量, 它等于位移 s 跟发生这段位移所用时间 t 的比值。 即 v=s/t。 速度是矢量,既有大小也有方向,其方向就是物体运动的方向。在国际单位制中,速度的单 位是(m/s)米/秒。 (2)平均速度是描述作变速运动物体运动快慢的物理量。一个作变速运动的物体,如果在 一段时间 t 内的位移为 s, 则我们定义 v=s/t 为物体在这段时间 (或这段位移) 上的平均速度。 平均速度也是矢量,其方向就是物体在这段时间内的位移的方向。 (3)瞬时速度是指运动物体在某一时刻(或某一位置)的速度。从物理含义上看,瞬时速 度指某一时刻附近极短时间内的平均速度。瞬时速度的大小叫瞬时速率,简称速率 5、匀速直线运动(A) (1) 定义:物体在一条直线上运动,如果在相等的时间内位移相等,这种运动叫做匀速 直线运动。 根据匀速直线运动的特点, 质点在相等时间内通过的位移相等, 质点在相等时间内通过的路 程相等,质点的运动方向相同,质点在相等时间内的位移大小和路程相等。 (2) 匀速直线运动的 x—t 图象和 v-t 图象(A) (1)位移图象(s-t 图象)就是以纵轴表示位移,以横轴表示时间而作 出的反映物体运动规律的数学图象,匀速直线运动的位移图线是通过 坐标原点的一条直线。 (2)匀速直线运动的 v-t 图象是一条平行于横轴(时间轴)的直线, 如图 2-4-1 所示。 由图可以得到速度的大小和方向,如 v1=20m/s,v2=-10m/s,表明一个质点沿正方向以 20m/s 的速度运动,另一个反方向以 10m/s 速度运动。 6、加速度(A) (1)加速度的定义:加速度是表示速度改变快慢的物理量,它等于速度的改变量跟发生这一 改变量所用时间的比值,定义式:a= V/m.s-1 20 10 O -10 V1 t/s 5 10 15 V2

Vt ? V0 t

(2)加速度是矢量,它的方向是速度变化的方向
dee pen. In Ge neral, periodic high pri ority on learni ng, easy to gras p and pra ctice : recurre nt learni ng factors, l ong time, prone to "sluggis h". Lear ning programmes are expli citly required to lear n educati on is not a n event, but to hig hlight the normal e ducation, differentiated level s, he art, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial attenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or individual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betw ee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s p n io c a r t x e 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortc omings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United S tates politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, t ime long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to its core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study lea ve, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "learning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

-3-

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e str ict t hree real" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "one country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral affairs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, every party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on f ull deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the construction of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt ex cerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to f ocus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

(3) 在变速直线运动中,若加速度的方向与速度方向相同,则质点做加速运动; 若加速度的方 向与速度方向相反,则则质点做减速运动. 7、用电火花计时器(或电磁打点计时器)研究匀变速直线运动(A) 1、实验步骤: (1)把附有滑轮的长木板平放在实验桌上,将打点计时器固定在平板上,并接好电路 (2)把一条细绳拴在小车上,细绳跨过定滑轮,下面吊着重量适当的钩码. (3)将纸带固定在小车尾部,并穿过打点计时器的限位孔 (4)拉住纸带,将小车移动至靠近打点计时器处,先接通电源,后放开纸带. (5)断开电源,取下纸带 (6)换上新的纸带,再重复做三次 2、常见计算: OA B ?3.07 ? ?
12.38 27.87 49.62. 07 77.40

C ?

D ?

E ?

AB ? BC BC ? CD , ?C ? 2T 2T ? ? ? B CD ? BC ? (2) a ? C T T2
(1) ? B ? 8、匀变速直线运动的规律(A)

图 2-5

(1).匀变速直线运动的速度公式 vt=vo+at(减速:vt=vo-at) (2). v ?

vt ? v o 此式只适用于匀变速直线运动. 2

(3). 匀变速直线运动的位移公式 s=vot+at2/2(减速:s=vot-at2/2) (4)位移推论公式: S ?

?t2 ? ?02
2a

(减速: S ?

?t2 ? ?02
?2a


V/m ·

6 -1 ① 5 s (5).初速无论是否为零,匀变速直线运动的质点,在连续相邻的相等的 4 3 时间间隔内的位移之差为一常数: Δ s = aT2 (a----匀变速直线运动的 2 ② 1 加速度 T----每个时间间隔的时间) t/s 0 1 2 3 9、匀变速直线运动的 x—t 图象和 v-t 图象(A) 4 5 6 7 8

10、自由落体运动(A) (1) 自由落体运动 物体只在重力作用下从静止开始下落的运动,叫做自由落体运动。 (2) 自由落体加速度 (1)自由落体加速度也叫重力加速度,用 g 表示. (2)重力加速度是由于地球的引力产生的,因此,它的方向总是竖直向下.其大小在地球上不 同地方略有不,在地球表面,纬度越高,重力加速度的值就越大,在赤道上,重力加速度的 值最小,但这种差异并不大。
d eepen. I n Ge neral, periodic hig h pri ority on le arni ng, easy to gras p and practi ce: re curre nt learni ng factors, l ong time, pr one to "sl uggis h". Lear ning pr ogrammes are expli citly require d to lear n education is not an eve nt, but to hig hlight the normal educati on, differentiat ed levels , heart, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial at tenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or in dividual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betwee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue 4 6 E Q Z R Y 'I D x T U j3 k B F . b P A O C W z H " S ; v n d q M y 5 1 0 2 h t g u r G ,X f m o lw ia c e p s 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortcomings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United States politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, time long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to it s core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study leave, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "lear ning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

-4-

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e strict t hree rea l" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "o ne country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral aff airs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, ev ery party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on full deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the constructio n of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt excerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to focus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

(3)通常情况下取重力加速度 g=10m/s2 (3) 自由落体运动的规律 vt=gt.H=gt2/2,vt2=2gh 专题二:相互作用与运动规律 【知识要点】 11、力(A)1.力是物体对物体的作用。 ⑴力不能脱离物体而独立存在。⑵物体间的作用是相互的。 2.力的三要素:力的大小、方向、作用点。 3.力作用于物体产生的两个作用效果。 ⑴使受力物体发生形变或使受力物体的运动状态发生改变。 4.力的分类⑴按照力的性质命名:重力、弹力、摩擦力等。 ⑵按照力的作用效果命名:拉力、推力、压力、支持力、动力、阻力、浮力、向心力等。 12、重力(A)1.重力是由于地球的吸引而使物体受到的力 ⑴地球上的物体受到重力,施力物体是地球。 ⑵重力的方向总是竖直向下的。 2.重心:物体的各个部分都受重力的作用,但从效果上看,我们可以认为各部分所受重 力的作用都集中于一点,这个点就是物体所受重力的作用点,叫做物体的重心。 ① 质量均匀分布的有规则形状的均匀物体,它的重心在几何中心上。 ② 一般物体的重心不一定在几何中心上,可以在物体内,也可以在物体外。一般采用 悬挂法。 3.重力的大小:G=mg 13、弹力(A) 1.弹力⑴发生弹性形变的物体,会对跟它接触的物体产生力的作用,这种力叫做弹力。 ⑵产生弹力必须具备两个条件:①两物体直接接触;②两物体的接触处发生弹性形变。 2.弹力的方向:物体之间的正压力一定垂直于它们的接触面。绳对物体的拉力方向总是 沿着绳而指向绳收缩的方向,在分析拉力方向时应先确定受力物体。 3.弹力的大小 弹力的大小与弹性形变的大小有关,弹性形变越大,弹力越大. 弹簧弹力:F = Kx (x 为伸长量或压缩量,K 为劲度系数) 4.相互接触的物体是否存在弹力的判断方法 如果物体间存在微小形变,不易觉察,这时可用假设法进行判定. 14、摩擦力(A) (1 ) 滑动摩擦力:

f = μFN

说明 : a、FN 为接触面间的弹力,可以大于 G;也可以等于 G;也可以小于 G b、μ 为滑动摩擦系数,只与接触面材料和粗糙程度有关,与接触面 积大小、接触面相对运动快慢以及正压力 FN 无关. (2 ) 静摩擦力: 由物体的平衡条件或牛顿第二定律求解,与正压力无关. 大小范围: O<f 静 ≤ fm (fm 为最大静摩擦力,与正压力有关) 说明: a 、 摩擦力可以与运动方向相同, 也可以与运动方向相反, 还可以与运动方向成一定夹角。
dee pen. In Ge neral, periodic high pri ority on learni ng, easy to gras p and pra ctice : recurre nt learni ng factors, l ong time, prone to "sluggis h". Lear ning programmes are expli citly required to lear n educati on is not a n event, but to hig hlight the normal e ducation, differentiated level s, he art, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial attenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or individual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betw ee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s p n io c a r t x e 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortc omings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United S tates politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, t ime long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to its core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study lea ve, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "learning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

-5-

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e str ict t hree real" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "one country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral affairs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, every party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on f ull deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the construction of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt ex cerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to f ocus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

b、摩擦力可以作正功,也可以作负功,还可以不作功。 c、摩擦力的方向与物体间相对运动的方向或相对运动趋势的方向相反。 d、静止的物体可以受滑动摩擦力的作用,运动的物体可以受静摩擦力的作用。 15、力的合成与分解(B) 1.合力与分力 如果一个力作用在物体上,它产生的效果跟几个力共同作用在物体上产生的 效果相同,这个力就叫做那几个力的合力,而那几个力叫做这个力的分力。 2.共点力的合成 ⑴共点力 几个力如果都作用在物体的同一点上, 或者它们的作用线相交于同一点, 这几个力叫共点力。 ⑵力的合成方法 求几个已知力的合力叫做力的合成。 a.若 F1 和 F2 在同一条直线上 ① F1 、 F2 同向:合力 F ? F1 ? F2 方向与 F1 、 F2 的方向一致 ② F1 、 F2 反向:合力 F ? F1 ? F2 ,方向与 F1 、 F2 这两个力 中较大的那个力同向。 b. F1 、 F2 互成θ 角——用力的平行四边形定则 F2 O 图 1-5-1 F

F1

平行四边形定则:两个互成角度的力的合力,可以用表示这两个力的有向线段为邻边,作平 行四边形,它的对角线就表示合力的大小及方向,这是矢量合成的普遍法则。 求F
1

、 F2 两个共点力 的合力公式: F =

F1 2 + F2 2 - 2 F1 F2 COS θ (θ 为 F1、F2 的夹

角) 注意:(1) 力的合成和分解都均遵从平行四边行法则。 (2) 两个力的合力范围: F1-F2 ≤ F ≤ F1 +F2 (3) 合力可以大于分力、也可以小于分力、也可以等于分力 (4)两个分力成直角时,用勾股定理或三角函数。 16、共点力作用下物体的平衡(A) 1.共点力作用下物体的平衡状态 (1)一个物体如果保持静止或者做匀速直线运动,我们就说这个物体处于平衡状态 (2)物体保持静止状态或做匀速直线运动时,其速度(包括大小和方向)不变,其加速度为 零,这是共点力作用下物体处于平衡状态的运动学特征。 2.共点力作用下物体的平衡条件 共点力作用下物体的平衡条件是合力为零,亦即 F 合=0 (1)二力平衡:这两个共点力必然大小相等,方向相反,作用在同一条直线上。 (2)三力平衡:这三个共点力必然在同一平面内,且其中任何两个力的合力与第三个力大小 相等,方向相反,作用在同一条直线上,即任何两个力的合力必与第三个力平衡 (3)若物体在三个以上的共点力作用下处于平衡状态,通常可采用正交分解,必有: F 合 x= F1x+ F2x + ………+ Fnx =0 F 合 y= F1y+ F2y + ………+ Fny =0 (按接触面分解或按运动方向分解) 19、力学单位制(A) 1.物理公式在确定物理量数量关系的同时,也确定了物理量的单位关系。基本单位就
d eepen. I n Ge neral, periodic hig h pri ority on le arni ng, easy to gras p and practi ce: re curre nt learni ng factors, l ong time, pr one to "sl uggis h". Lear ning pr ogrammes are expli citly require d to lear n education is not an eve nt, but to hig hlight the normal educati on, differentiat ed levels , heart, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial at tenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or in dividual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betwee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue 4 6 E Q Z R Y 'I D x T U j3 k B F . b P A O C W z H " S ; v n d q M y 5 1 0 2 h t g u r G ,X f m o lw ia c e p s 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortcomings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United States politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, time long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to it s core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study leave, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "lear ning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

-6-

guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e strict t hree rea l" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "o ne country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral aff airs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, ev ery party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on full deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the constructio n of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt excerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to focus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

是根据物理量运算中的实际需要而选定的少数几个物理量单位; 根据物理公式和基本单位确 立的其它物理量的单位叫做导出单位。 2.在物理力学中,选定长度、质量和时间的单位作为基本单位,与其它的导出单位一 起组成了力学单位制。选用不同的基本单位,可以组成不同的力学单位制,其中最常用的基 本单位是长度为米(m) ,质量为千克(kg),时间为秒(s),由此还可得到其它的导出单位, 它们一起组成了力学的国际单位制。 17、牛顿运动三定律(A 和 B) 1.惯性:保持原来运动状态的性质, 质量是物体惯性大小的唯一量度 牛顿第一定律 2.平衡状态:静止或匀速直线运动 3.力是改变物体运动状态的原因,即 产生加速度的原因 1.内容:物体运动的加速度与所受的合外力成正比, 与物体的质量成反比, 加速度方向与合外力方向一致 牛顿第二定律 2.表达式: F 合= ma 3.力的瞬时作用效果:一有力的作用,立即产生加速度 4.力的单位的定义:使质量为 1kg 的物体产生 1m/s2 的加速度的力就是 1N 1.物体间相互作用的规律:作用力和反作用力大 小相等、方向相反,作用在同一条直线上 2.作用力和反作用力同时产生、同时消失,作 用在相互作用的两物体上,性质相同 3.作用力和反作用力与平衡力的关系 1.已知运动情况确定物体的受力情况 牛顿运动定律 的应用 2.已知受力情况确定物体的运动情况 3.加速度是联系运动和力关系的桥梁

牛顿运动定律

牛顿第三定律

dee pen. In Ge neral, periodic high pri ority on learni ng, easy to gras p and pra ctice : recurre nt learni ng factors, l ong time, prone to "sluggis h". Lear ning programmes are expli citly required to lear n educati on is not a n event, but to hig hlight the normal e ducation, differentiated level s, he art, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial attenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or individual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betw ee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s p n io c a r t x e 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortc omings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United S tates politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, t ime long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to its core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study lea ve, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "learning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

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guarantee for t he great struggl e. T his as pe cts XI Ge neral Secretary of speech main i ncl udi ng exercise thrift, against extravagance mass line i s party of lifeline and fundame ntal work r oute a ccurate grasp party of mass li ne educati on practi ce a ctivities of gui deli ne a nd target requirements set and develop "thre e str ict t hree real" of style put power shut into system of cage i n using history wi sdom advance a nti-corr uption constructi on i n-dept h adva nce style cl ean g overnment a nd anti-corr upti on str uggle develop na il nail of spirit, a Zha ng good of blueprint w orked t o... 9. ot her as pect s. 18 bi g yilai, XI General Secretary al so re spe ctively on di plomati c, and military, and ecologi cal constructi on, a spects publis hed has important s pee ch, cover s ha s constr uction e col ogical civilizati on, a nd advance defense and army moder n, and rich "one country, tw o systems" pra ctice and advance count ry unified, and go peace devel opment r oad, and prom oted buil ding new power s relationship, a nd g o good ar ound T X '9 % 4 8 C A " R w k 2 Y 0 j6 z 5 3 1 I b F . q S m y v g h lf u ,d s e p n io c a r t x dipl omatic work, and strengtheni ng and devel opi ng countries s olidarity cooperati on, a nd a ctive parti cipati on multil ateral affairs, and s cie nce of thinki ng and work met hod, many as pe cts. XI Jinpi ng, Se cretary of a serie s of important s peeches , and further e nrich and dev elop the party's the ory, li ne, principle s and policie s, the party puts forward new re quireme nts for more contem porary features , the latest a chieveme nt of Marxism i n China, i s a gui de to persisti ng and devel opi ng s ociali sm with Chi nese chara cteristics. Four met hods. To a ddres s the relati onshi p betwe en compre hensive and focuse d on s cience. I n the process of learni ng, we shoul d follow a s a good st udy a nd carry out the "wise me n" to conduct a comprehensiv e col laborative learni ng; and wit h their own j obs, focus rese arch and understa ndi ng spirit, gra sp the pote ntial requirement s. For example, every party member should be a ccording t o the vari ous branche s of learning pr ogram, an arti cle does not go i nto a li nk, no leakage of conducting a compre he nsive study, and com bine d with t heir ow n duties a nd res ponsi bilities , be focuse d and targeted Ge os cience. Like, lea ders to highlig ht learni ng XI on r uling a cting political k now of dee p love of cut dry i n pra ctice g o in forefront of river new lang uage out poverty XI on coor dina tion adva nce "four a full" strategy layout dis cusses ex cerpts XI on f ull deepe ning reform discuss es excer pts XI on full l aw ruli ng dis cusses ex cerpts 1 8 big yilai XI on major e conomi c problem di scusse s excerpt s, dis cipline to highlig ht learni ng XI on strict party of di sci pline and rules dis cus ses excer pts XI Jinpi ng, on the construction of clea n and hone st Gover nment and fight against corr uption di scusse d excer pts, technology to highlig ht the lear ning of the XI Ji npi ng on te chnol ogical i nnovation and dis cusses excerpts, XI Jinping, e ducation s houl d hig hlight the importa nt ex cerpts of work on education and s o on. To addre ss the relation betwee n stage a nd ofte n sci ence. Phase has the advantage of time to f ocus on fast, to hig hlight the t heme, focuse d, res ult; often lear n the a dvantages of flexible fit, form, subtle, conti nue s to

d eepen. I n Ge neral, periodic hig h pri ority on le arni ng, easy to gras p and practi ce: re curre nt learni ng factors, l ong time, pr one to "sl uggis h". Lear ning pr ogrammes are expli citly require d to lear n education is not an eve nt, but to hig hlight the normal educati on, differentiat ed levels , heart, catch a fine practice, the real party's ide ologi cal and political construction i n the every day, often. Thi s requires that we do a good j ob pha se focuse d learni ng base d on knowledge contests, comments on rewards in the form, pay spe cial at tenti on to re curri ng studies. To handle the relati onshi p betwee n s olid s trong to learn a nd a l ot to learn. For any unit or in dividual, obje ctively s peaking , in the process of carrying out the party Constituti on Party r ules and s pirit, there is a problem with str ong and weak, w hich we need to pay attention to the a ctual lear ning conte nt, and ha ndl e the relati ons hip betwee n solid str ong to lear n and a lot to lear n. On one ha nd, w e must always kee p a humble attitude, good deal, Conti nue 4 6 E Q Z R Y 'I D x T U j3 k B F . b P A O C W z H " S ; v n d q M y 5 1 0 2 h t g u r G ,X f m o lw ia c e p s 校 能 并 作 工 从 位 单 业 事 企 体 团 会 社 构 版 出 闻 新 关 机 党 在 合 适 法 方 与 管 代 现 握 掌 , 识 知 门 专 和 素 论 理 本 基 行 、 学 治 政 的 好 良 有 具 养 培 the hardeni ng. The other hand, always kee p the s pirit of energeti c, pegge d to the weak link to find gaps , fill the s hort Board. Short Boar d iss ues s hould not be underestimated, the sayi ng goes, have short Board, a dd a s hort. T his tell s us, t here are weak nes ses s hortcomings a nd do not be afraid, fear is a blind eye and not to re pair, t he res ult is poor is w orse a nd the weak weaker. United States politi cs home zhamusi, a nd Wil son and preve ntion crime learn ex perts qia oz hikaili n proposed has a famous of broke n window t heor y, that, if a buildi ng House has a fan wi ndow of glass broken has, a nd this fan Window s no get timely repai r, ot hers on May to br oke more of window glass, time a l ong, t hese damaged of window on t o pe ople caused a disor der, a nd matter of feel, result s in thi s mass errors t hink no attenti on, a nd no manageme nt of atmos phere Xia, s ome ba d cult ure, and violati ons behavi or on w ill bree ding a nd s pread. Reality life in the is s uch, clea n of wall Shang, s udde nly was posted has a Zhang ad, if didn't people manageme nt, not out days this w all Shang on w ill appeared greatly small many of advertising ; private take mess built phe nomenon i s so, began circle a small block to built a small s hed put thi ngs, if di dn't people timely stop, he on dare built a hut live people, time long ha s didn't pe ople tube, wa nts to tube Shi on difficult ha s. Therefore, the s olid strong is im portant, a l ot to learn i s als o importa nt. Thir d, key, gras p the lear ning obje ctive of education is to trai n a qua lified party member "two" study and educati on to it s core e sse nce is l earni ng and doi ng. Learni ng a nd doing are mut ually reinfor cing, if optical can't do, study leave, real lear ning deficie ncy, whi le sweati ng, wind and water, "one fishing white" became "fake words and not the mules". Learni ng party rule s did not comply wit h the party Constituti on, a ddres s the lear ning s eries is not used, i nstead, l earn and do, imagi ne thi s "lear ning", how do you meet the eligi bility requirements of party members. T herefore,

the "two" basi c learni ng, the key is i n us e, do, line. In parti cula r, is a qualified party members to gras p the foll owing t hree points . To stre ngthe n "four

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