2021年浙江省台州市联谊五校高二物理上学期期中试题(学考).pdf

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1、-1-/6 浙江省台州市联谊五校2019-2019 学年高二物理上学期期中试题（学考）本试题卷分选择题和非选择题两部分，共5页，满分 70分，考试时间60分钟。重力加速度g 均取 10m/s2。一、选择题(本题共 18 小题，每小题2 分，共 36 分。每小题列出的四个备选项中只有一个是符合题目要求的，不选、多选、错选均不得分)1下列属于国际单位制中基本单位符号的是（）As BJ Cm/s2D N2.下列元器件中，哪一个是电容器？（）ABCD3.如图所示，物体A 在光滑的斜面上沿斜面下滑，则A 受到的作用力是：（）A重力、弹力和下滑力B重力和弹力C重力和下滑力D重力、压力和下滑力4.地球的半径

2、为R，某同步卫星在地球表面所受万有引力为F，则该卫星在离地面高度约6R 的轨道上受到的万有引力约为（）A6F B7F C.136F D.149F5.风能是一种绿色能源。如图所示，叶片在风力推动下转动，带动发电机发电，M、N为同一个叶片上的两点，下列判断正确的是（）A.M 点的线速度小于N 点的线速度B.M 点的角速度小于N 点的角速度C.M 点的加速度大于N 点的加速度D.M 点的周期大于N 点的周期6从科学方法而言物理学中“用一个力代替几个力，且效果相同”，所运用的方法是（）A控制变量B等效代替C理想实验D建立模型7.如图所示，某同学用一根弹簧和一把直尺来测量重物的重量。在未悬挂重物时指针正

3、对刻度5。在弹性限度内，当挂上80N 重物时，指针正对45。若指针正对15 时，所挂重物为（）A40N B20N C30N D不知弹簧劲度系数k，故无法计算8.在地球表面附近环绕地球运行的卫星，周期为85min，运行速度为7 9km s我国“风云”精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页，共 6 页-2-/6 二号气象卫星，运行在赤道上方高度约为地球半径56 倍的轨道上，关于该卫星的运行速度v 和周期 T，下列说法正确的是（）A.v7.9km/s，T85min Bv85minCv7.9km/s，T7.9km/s,T85min9.如图所示，竖直放置的长直导线通有恒

4、定电流，侧旁小磁针N 极的最终指向应为()A平行纸面向右B平行纸面向左C垂直纸面向里D垂直纸面向外10.如图所示，小球从高处下落到竖直放置的轻弹簧上，那么小球从接触弹簧开始到将弹簧压缩到最短的过程中（弹簧保持竖直），下列关于能的叙述正确的是()A弹簧的弹性势能先增大后减小B小球的动能一直在增大C小球的重力势能一直在减小D小球与弹簧组成系统的机械能总和先增大后减小11.对于如图所示电场中的A、B、C 三点，下列判断正确的是()AB 点的电场强度最大BA 点的电势最高C正电荷在B 点受到的电场力最大D负电荷在A 点具有的电势能最大12.下列实验，表明电子在磁场中偏转的是()13.某学生用多用电表测

5、量一个电阻的阻值.将选择开关置于“1”挡时，指针在a位置;将选择开关置于“10挡时，指针在b 位置(如图).并且，换挡后都进行了电阻调零操作.该电阻较为准确的测量值是()A.18B.180C.200D.201914.若汽车的加速度方向与速度方向一致，当加速度减小时，则（）A汽车的速度也减小B汽车的速度保持不变C当加速度减小到零时，汽车静止D当加速度减小到零时，汽车的速度达到最大15.某同学的质量为50kg，所骑自行车的质量为15 kg，设该同学在平直路面上正常骑行时脚踏自行车的功率为40W。若人与车受到的阻力是其重力的0.02倍，则正常骑行自行车时的速度大小约为()A3m/s B4m/s C1

6、3m/s D30m/s16.如图所示，质量为m、电荷量为Q的带电小球A用绝缘细线悬挂于O点，另一个带电量也为Q的带电小球B 固定于O点的正下方，已知绳长OA为 2l，O到B点的距离为l，平衡时AB带电小球处于同一高度，已知重力加速度为g，静电力常量为k。则（）精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页，共 6 页文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档

7、编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV1

8、0I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8

9、T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 H

10、K8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2

11、V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 Z

12、J8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8

13、V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3-3-/6 A.A、B间库仑力大小为22klQB.A、B间库仑力大小为2mgC.细线拉力大小为mg3D.细线拉力大小为229k32lQ17.三峡水电站是我国最大的水力发电站,平均水位落差约为100m,每秒约有1104m3的水用来发电,水的重力势能约有20%转化为电能。已知水的密度为1.0103kg/m3,火电厂每发一度电大约需耗标准煤0.3kg,同时排放二氧化碳 1kg。关于三峡水电站,下列说法正确的是（）A.发电平均功

14、率约为21012WB.每天的发电量约为4.8107kWhC.相比于同功率的火电厂,每天约可减少煤炭消耗2106kgD.相比于同功率的火电厂,每天约可减少二氧化碳排放4.8106kg18.如图所示，在一根一端封闭、内壁光滑的直管MN 内有一个带正电的小球，空间中充满竖直向下的匀强磁场。开始时，直管水平放置，且小球位于管的封闭端M 处。现使直管沿水平方向向右匀速运动，经一段时间后小球到达管的开口端N 处。在小球从M 到 N 的过程中（）A磁场对小球做正功B直管对小球做正功C小球所受磁场力的方向不变D 小球的运动轨迹是一直线二、非选择题（本题共5小题，共34 分）19.（6 分）(1)如图为某同学“

15、验证机械能守恒定律”的实验装置图，现有的器材：带铁夹的铁架台、电磁打点计时器、纸带、带夹子的重物、导线若干为完成此实验，除了所给的器材，还需要_(填选项 前 的 字母)A刻度尺B秒表C220V 交流电源D低压交流电源（2）打点计时器的电源为交流电源（频率为50Hz），如图为打出纸带的一部分，A、B、C 为连续的三个点，用刻度尺量得，XAB=4.15cm，XBC=4.53cm，则可得到打B点时重物下落的速度大小vB=_m/s （结果保留三位有效数字）。(3)在如图所示“探究加速度与力、质量的关系”的实验中，可通过位移的测量来代替加速度的测量，即1122axax使用这种方法需满足的条件是两小车(填

16、“质量”、“所受拉力”或“运动时间”)相同.20.（6 分）（1）上图为某同学在实验过程中完成的部分电路连接的情况，请你帮他完成其余部分的线路连接。（用黑色水精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页，共 6 页文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I1

17、0Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O

18、6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V

19、3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R

20、3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S

21、8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A

22、3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:

23、CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3-4-/6 笔画线表示对应的导线）（2）如果某次实验测得小灯泡两端所加电压如图所示，U_V；请结合图线算出此时小灯泡的电阻是（保留三位有效数字）。21.（6 分）如图所示，在同一水平面上的两金属导轨间距L=O 2m，处在竖直向下的匀强磁场中，磁感应强度B=1T 导体棒 ab垂直导轨放置，棒长等于导轨间距，其电阻 R=6 闭合开关，当通过导体棒ab 的电流 I=O.5A时，求：(1)导体棒 ab上电流的热功率；(2)导体棒 ab受到安培力的方向；(3)导体棒 ab受到安培力的大小22.（7 分）原地纵跳摸高是篮球和羽毛球重

24、要的训练项目。已知质量m=60 kg 的运动员原地摸高为2.05米，比赛过程中，该运动员重心先下蹲0.5 米，经过充分调整后，发力跳起摸到了2.85米的高度。假设运动员起跳时为匀加速运动，求：（1）该运动员离地面时的速度大小为多少；（2）起跳过程中运动员对地面的压力；（3）从开始起跳到双脚落地需要多少时间.23.（9 分）如图为固定在竖直平面内的轨道，直轨道AB与光滑圆弧轨道BC相切，圆弧轨道的圆心角为37，半径为r=0.25m，C端水平,AB段的动摩擦因数为0.5竖直墙壁CD高H=0.2m,紧靠墙壁在地面上固定一个和CD等高，底边长L=0.3m 的斜面一个质量m=0.1kg 的小物块(视 为

25、质点)在倾斜轨道上从距离B点l=0.5m 处由静止释放，从C点水平抛出重力加速度g=10m/s2，sin37=0.6，cos37 =0.8 求：（1）小物块运动到C点时对轨道的压力的大小；（2）小物块从C点抛出到击中斜面的时间；（3）改变小物体从轨道上释放的初位置，求小物体击中斜面时动能的最小值台州市联谊五校2019 学年第一学期高二期中考试物理学考参考答案一、选择题(本题共 18 小题，每小题2 分，共 36 分。每小题列出的四个备选项中只有一个是符合题目要求的，不选、多选、错选均不得分)二、非选择题（本题共5小题，123456789ACBDABBBD101112131415161718CB

26、CBDADBB精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页，共 6 页文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A

27、3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:

28、CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I1

29、0Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O

30、6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V

31、3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R

32、3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3-5-/6 共 34 分）19.（6 分，每空2 分）（1）AD（2）

33、2.17（3）运动时间20.（6 分，每空2 分）（1）（2）2.282.32V 11.512.221.（6 分，每小题2 分）（1）P=I2R=0.25 6W=1.5W（2）左手定则判断安培力方向水平向右（3）F安=ILB=0.5 0.2 1N=0.1N22.（7 分）（1）（2 分）：从开始起跳到脚离开地面重心上升，离开地面到上升到最高点的过程中，重心上升距离（1 分）；v=4m/s；（1 分）（2）（3 分）：（1 分）（1 分）牛顿第三定律可知运动员对地面的压力为1560N，方向向下（1 分）（3）（2 分）：加速上升时间，减速上升的时间（1 分）加速下降和减速上升时间相同，故总时间为

34、。（1 分）23.（9 分）（1）3分：小物块从A 到 C 的过程，由动能定理得：（1 分）代入数据解得在 C 点，由牛顿第二定律得：（1 分）精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页，共 6 页文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6

35、 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3

36、G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3

37、 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8

38、M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3

39、文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:C

40、V10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10

41、Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3-6-/6 代入数据解得：=2.2N 由牛顿第三定律得，小物块运动到C 点时对轨道的压力的大小为2.2N（1分）（2）（3 分）如图，设物体落到斜面上时水平位移为x，竖直位移为y，（1 分）代入得：，由平抛运动的规律得：，（1 分）联立得，代入数据解得：t=153s（1 分）（3）（3分）：由上知（1 分）可得：小物体击中斜面时动能为：（1 分）解得当（1 分）精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页，共 6 页文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码

42、:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I

43、10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6

44、O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8

45、V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5

46、R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8

47、S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3文档编码:CV10I10Q8T6O6 HK8V3G2V5R3 ZJ8S8M8V1A3