最新罗山高中物理二轮复习优秀名师资料.doc
《最新罗山高中物理二轮复习优秀名师资料.doc》由会员分享,可在线阅读,更多相关《最新罗山高中物理二轮复习优秀名师资料.doc(23页珍藏版)》请在三一文库上搜索。
1、2009年罗山高中物理二轮复习,B,金属棒进入B区域后仍保持匀速下滑 B. 若B2122009年罗山高中物理二轮复习1 C. 若B,B,金属棒进入B区域可能先加速后匀速下滑 212D. 若B,B,金属棒进入B区域可能先减速后匀速下滑 212力与直线运动专题检测 4. 一物体在粗糙斜面上,在平行斜面向上的外力F作用下斜面和物体始终处于静止状态,当F按图中所一、选择题: 示规律变化时,物体与斜面间的摩擦力大小变化 1. 质量为m、规律可能是下列图中的( ) m的小球分别带同种电荷q和q,它们用等长的细线吊在同一1212点O,由于静电斥力的作用,使m球靠 1在竖直光滑墙上,m的拉线呈竖直方向, ,1
2、1如右图所示,m、m均处于静止,如图所 12示,由于某种原因,两球之间的距离变为原 来的一半,则其原因可能是( ) A. m变为原来的一半 2B. m变为原来的八分之一 2C. q变为原来的八分之一 1D. q变为原来的八分之一 5. 两辆游戏赛车a、b在两条平行的直车道上行驶,t=0时两车都在同一计时线22. 物块从光滑曲面上的P点自由滑下,通过粗糙的静止水平传送带以后落到地处,此时比赛开始,它们在四次比赛中的图如图所示,哪些图对应的比赛,t面上的Q点,若传送带的皮带轮沿逆时针方向转动起来,使传送带随之运 中,有一辆赛车追上了另一辆( ) 动,如右图所示,再把物块放到P点自由滑下,则( )
3、A. 物块将仍落在Q点 B. 物块将会落在Q点的左边 C. 物块将会落在Q点的右边 D. 物块有可能落不到地面上 3. 如图所示,光滑的“?”型金属导体框竖直放置,质量为m的金属棒M与6. 如图所示,质量为M的三角形木块A静止在水平面上, 一质量为m的物体B正沿A的斜面下滑,三角形木块A仍然保持静止,则下列说法中正确的是框架接触良好,磁感应强度分别为B、B的有界匀强磁场方向相反,但均垂直12于框架平面,分别处在abcd和cdef区域,现从图示位置由静( ) 止释放金属棒MN,当金属棒进入磁场B区域后,恰好作匀 A. A对地面的压力可能小于(M+m)g 1速运动,以下说法中正确的有( ) B.
4、水平面对A的静摩擦力可能水平向左 A. 若B,B,金属棒进入B区域后将加速下滑 C. 水平面对A的静摩擦力不可能为零 212that construction site clean, consciously maintain sanitation. (4) ensure the safety of materials and semi-finished products. 8. quality assessment, data compilation: buried, belongs to the concealed works construction, therefore its qual
5、ity inspection must be carried out according to acceptance of concealed work-related. Mainly in the following aspects: (1) acceptance of positioning is accurate. (2) is fixed securely. (3) tightening compliance requirements. (4) have an impact on other projects. (5) the material used is eligible. (6
6、) complete information has been collected. Documentation: should follow construction progress at any time finishing self acceptance, signature acceptance after the representatives of the party were invited. Requirements: (1) covert acceptance is thea the companys situation, familiar with the period
7、schedule master plan, construction with water, power supply, vertical transportation, gondola of external scaffolding or construction. (2) technical data preparation: first drawings to prepare the drawings to be fully familiar with, and does not have difficult places to ask out clearly understood, y
8、ou also need to prepare acceptance of the Atlas, the quality standards, safety index, all the forms used and the acceptance required for the works, and more. (3) tools, implements preparation: supply planning against the required tools, appliances, specific to the type, quantity, supply time, also p
9、lans to supply, warehouse, and other departments, common tools and appliances. (4) materials: according to the drawings and engineering, detailed material supply meter . (2) preparations into people, and clear accountability to specific persons. (3) implementation of collaboration and cooperation wi
10、th construction companies. 2.15 embedded part installation (early works with civil engineering completed) 1. Note: buried is one of the curtain wall with main structure connecting structure, embedded quality directly affects the production, installation of curtain wall and the main structure of the
11、connections. Its installation has a direct impact on the degree of precision of curtain wall construction accuracy and surface quality is good or bad. So the first job as a curtain wall installation, buried both for its manufacture and installation are directly affects the entire curtain wall constr
12、uction, installation, and an important factor in the overall effect. 2. material specifications: the embedded parts. 3. basic operation: (1) familiar with the drawings: installation personnel after receivingtypeset by the owners consent before they can purchase and order under the program, each ston
13、e must use the same background, the same pattern, size error in 0.5mm stone. Air infiltration properties, stone curtain wall wind pressure rainwater leakage in distortion performance, performance and energy-saving performance in front of the construction should be in accordance with the construction
14、 plan of the specification and the file size in the appropriate authority inspection departments qualified testing. Stone used steel keel, installation job main including following steps: 2.1 construction Qian prepared 2.2 pre buried pieces processing 2.3 measurement and the measurement results figu
15、re draws 2.4 vertical box positioning put line 2.5 turned received pieces installation 2.6 vertical box installation 2.7 vertical box correction and acceptance 2.8 layer high and the cross box measurement positioning and put line 2.9 cross box installation 2.10 installation 2.11 stone plate installa
16、tion 2.12 sealed rubber injection 2.13 clean ending 2.14 construction Qian prepared 1. Description Project Manager required for the duration of the project schedule, technical information, tools, machinery, apparatus, materials, personnel, temporary facilities ready. 2. the scope of previous constru
17、ction (1) project outline: to understand the site profiles, familiar with the construction and supervision of party D. B沿A的斜面下滑时突然受到一沿 A. 物体A上抛的初速度和物体B落地时的速度大小均为2 ,斜面向上的力F的作用,如果力F的大小 B. 物体A、B落地时间相等 满足一定条件,三角形木块A可能会立刻开始滑动 C. 物体A能上升的最大高度和物体B开始下落时的高度相同 7. 杂技表演的安全网如图甲所示,网绳的结构为正方形格子,O、 D. 两物体在空中到达的同一高度一定
18、是物体B开始下落时高度的一半 a、b、c、d0等为网绳的结点,安全网水平张紧后,质量为m的运动员从高处落下,并恰 好10. 如图甲所示,质量m=1kg的物体置于倾角的固定粗糙斜面上,对物,370体施以平行于斜面向上的拉力F,t=1 s 时撤去拉力,物体运动的部分落在O点上,该处下凹至最低点时,网绳dOe、bOg均为120张角,如图乙所图,t12示,此时O点受到向下的冲击力大小为2F,则这时O点周围每根网绳承受的象如图乙所示,则下列说法正确的是()( ) gms,10/张力大小为( ) A. 拉力F的大小为20 N B. 物体运动到最高点的时间为3 s C. 0,1s内重力的平均功率为100W
19、D. t,4 s 时物体的速度大小为10m/s A. F B.F/2 C. D. ()/2 11. 如图所示,在两平行金属板中央有一个静止的电子(不计重力),当两板间2Fmg,2Fmg,8. 在固定于地面的斜面上垂直安放一个档板,截面为1/4圆的柱状物体甲放在加上如下图所示的交变电压后, 斜面上,半径与甲相等的光滑圆球乙被夹在甲与档板之间,没有与斜面接触而能使电子有可能做往返运动的 处于静止状态,如图所示,现在从球心O处对甲施加一平行于斜面向下的力F,电压是( ) 1使甲沿斜面方向极其缓慢地移动,直至甲与档板接触为止,设乙对档板的压力 为F,甲对斜面的压力为F,则在此过程中( ) 12 A.
20、F缓慢增大,F缓慢增大 12 B. F缓慢增大,F缓慢减小 12 C. F缓慢减小,F缓慢增大 12 D. F缓慢减小,F缓慢不变 129. 从地面竖直上抛一物体A,同时在离地某一高度处有一物体B自由下落,不 ,计空气阻力,两物体在空中到达同一高度时的速率都是,则下列说法中正确 的是( ) ly understood, you also need to prepare acceptance of the Atlas, the quality standards, safety index, all the forms used and clearpreparation: first drawi
21、ngs to prepare the drawings to be fully familiar with, and does not have difficult places to ask out uction with water, power supply, vertical transportation, gondola of external scaffolding or construction. (2) technical dataconstrinvited. Requirements: (1) covert acceptance is thea the companys si
22、tuation, familiar with the period schedule master plan, onstruction progress at any time finishing self acceptance, signature acceptance after the representatives of the party were llow ct on other projects. (5) the material used is eligible. (6) complete information has been collected. Documentatio
23、n: should fo: (1) acceptance of positioning is accurate. (2) is fixed securely. (3) tightening compliance requirements. (4) have an impacrelated. Mainly in the following aspects-s quality inspection must be carried out according to acceptance of concealed workfinished products. 8. quality assessment
24、, data compilation: buried, belongs to the concealed works construction, therefore it-nd semithat construction site clean, consciously maintain sanitation. (4) ensure the safety of materials aupervision of partyand s. 2. the scope of previous construction (1) project outline: to understand the site
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 最新 罗山 高中物理 二轮 复习 优秀 名师 资料
链接地址:https://www.31doc.com/p-1416951.html