2021年2019—2020学年度杭州学军中学高三年级期中考试高中物理.pdf

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1、2019 2020 学年度杭州学军中学高三年级期中考试高中物理物理试卷一、选择题此题共15 小题，每题 3 分，共 45 分?每题有一个或多个选项符合题意?全部选对的得 3 分，选对但不全的得2 分，有选错或不答的得0 分1?以下表述正确的选项是 A?牛顿发觉了万有引力定律同时通过实验测出了引力常数B.伽利略通过实验和逻辑推理提出质量并不是阻碍落体运动快慢的缘故C.亚里士多德通过理想实验提出力并不是坚持物体运动的缘故D.在国际单位制中，力学的差不多单位有牛顿、米和秒2.在抗洪救灾中，一架直升飞机通过绳索用恒力F 竖直向上拉起一个漂在水面上的木箱，使木箱由水面上方开始加速上升到某一高度，假设考虑

2、空气阻力而不考虑空气的浮力，那么此过程中，以下判定正确的选项是A?力F 所做功减去克服阻力所做的功等于重力势能的增量B.木箱克服重力所做的功等于重力势能的增量C力 F、重力、阻力，三者的合力所做的功等于木箱重力势能的增量D?力F 和阻力的合力所做的功等于木箱机械能的增量3?直升机悬停在空中向地面投放装有救灾物资的箱子，如图1 所示。设投放初速度为零，箱子所受的空气阻力与箱子下落速度的平方成正比，且运动过程中箱子始终保持图示姿势。在箱子下落过程中，以下讲法正确的选项是團LA?箱内物体对箱子底部始终没有压力B?箱子刚从飞机上投下时，箱内物体受到的支持力最大C箱子接近地面时，箱内物体受到的支持力比刚

3、投下时大D?假设下落距离足够长，箱内物体有可能不受底部支持力而”飘起来 4.如图 2 所示，两个质量分不为m1 2kg、m2=3kg 的物体置于光滑的水平面上，中间用文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I1

4、0O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7

5、R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J

6、3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1

7、I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9

8、R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L

9、3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8文档编码:CK6G1I10O8N6 HW2N9R7R5C6 ZG9U2L3J3V8A?运动员放箭处离目标的距离为B.运动员放箭处离目标的距离为轻质弹簧秤连接。两个大小分不为FI=3

10、0N、F2=20N的水平拉力分不作用在mi、m2上，那弹簧秤的示数是25NC.以相同的车速开始刹车，甲车先停下来，甲车的刹车性能好D.乙车与地面间的动摩擦因数较大，乙车的刹车性能好6.民族运动会上有一个骑射项目，运动员骑在奔驶的马背上，弯弓放箭射击侧向的固定目标，如图 4。假设运动员骑马奔腾的速度为Vi,运动员静止时射出的弓箭速度为V2。跑道离固定目标的最近距离为d。假定运动员射箭时所用力量都相同，要想命中目标且射出的箭在空中飞行时刻最短，以下讲法正确的选项是B.弹簧秤的示数是50NC.在突然撤去 F2的瞬时，mi的加速度大小为5m/s2D.在突然撤去 Fi的瞬时，mi的加速度大小为13m/s

11、25.刹车距离是衡量汽车安全性能的重要参数之一。图3 中所示的图线1、2 分不为甲、乙两辆汽车在紧急刹车过程中的刹车距离s 与刹车前的车速v 的关系曲线,紧急刹车过程中车与地面间是滑动摩擦。据此可知，以下讲法中正确的选项是A.甲车的刹车距离随刹车前的车速v 变化快，甲车与地面间的动摩擦因数较大B.甲车的刹车距离随刹车前的车速v 变化快，甲车的刹车性能好E4dv2ViV2文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2

12、ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5

13、E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3

14、文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:C

15、B9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P

16、1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9

17、HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T

18、6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J32c.箭射到靶的最短时刻为dV2D.箭射到靶的最短时刻为d、2 2 V2 Vi7.如图5 所示，一汽车在水平面上用不可伸长的轻绳索通过光滑的定滑轮牵引小船，使小船匀速靠岸。假设水对船的阻力不变，那么以下判定正确的选项是A?绳子的拉力不断增大B.船受到的浮力不断增大C.在船靠岸的过程中，汽车做匀速运动D.在船靠岸的过程中，汽车做加速运动&如图 6 所示，物体随转台由静止开始转动，当转速缓慢增加到

19、某值时物体立即开始在转台上滑动，现在转台已开始匀速转动，这过程中以下讲法正确的选项是A?物体所受摩擦力方向始终指向圆心B.只有转台匀速转动时物体受摩擦力方向才指向圆心C.物体所受静摩擦力对物体做了正功D.以上讲法均不正确9.2002 年 4 月下旬，天空中显现了水星、金星、火星、木星、土星近乎直线排列的”五星连珠 的奇迹，这种现象的概率为几百年一次。假设火星和木星绕太阳做匀速圆周运动，周期分不为Ti和 T2，而且火星离太阳较近，它们绕太阳运动的轨道在同一平面内，假设某时刻火星和木星都在太阳的同侧，三者在一条直线上排列，那么通过多长时刻将第二次显现文档编码:CB9P10P1U2W9 HK1F7T

20、6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2

21、ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5

22、E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3

23、文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:C

24、B9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P

25、1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9

26、HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J32这种现Ti T2 2T1T2 B.T2T,T1T2 D.Ti T2 C.Ti2文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D

27、6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ

28、10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2

29、W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档

30、编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9

31、P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U

32、2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK

33、1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3为零势能参考面，以下表达正确的选项是10.如图 7 所示，竖直放置的光滑圆轨道被固定在水平地面上，半径r=0.4m，最低点处有一小球半径比r 小专门多，现给小球以水平向右的初速度vo,那么要使小球不脱离圆轨道运动2,V0应当满足g=10m/s Vo 0 B.V0 4m/s C.v02.5m/s D.v0

34、2.2m/s 11?如图8 所示，物体 B靠在水平天花板上，在竖直向上的力F 作用下,A、B保持静止,A与 B间的动摩擦因素为1 1,B与天花板间的动摩擦因素为1 2,那么关于1 1、1 2的值以1、A.1 1=0,1 2 工 0桌子边缘相平。板与桌面间的动摩擦因数为尸 0.4。现用F=5N的水平力向右推薄板，使它翻下桌子，力F 做的功至少为A.1JD.4JD.口1 丰0,1 2=0B.1.文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 H

35、K1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6

36、D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 Z

37、Z10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E

38、2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文

39、档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB

40、9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1

41、U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3为零势能参考面，以下表达正确的选项是下判定正确的选项是C.1 1=0,1 2=012?如图9 所示，质量 m=1kg、长 L=0.8m的平均矩形薄板静止在水平桌面上，其右端与13.如图 10 所示，表面光滑的固定斜面顶端安有滑轮，两物块轮不计滑轮的质量和摩擦，P悬于空中，Q放在斜面上，两物体能够看成质点，且位于同高度处于静止状态。绳子均与斜面平行，假设剪断绳，让两物体从静

42、止开始运动，取地面P、Q用轻绳连接并跨过滑文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6

43、T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ1

44、0E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W

45、4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编

46、码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P

47、10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2

48、W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3文档编码:CB9P10P1U2W9 HK1F7T6D6T2 ZZ10E5E2W4J3抛出一个小球，它落在斜面上的b 点，假设小球从a 点以初速度 2Vo水平抛出，不计空气阻力，关于小球在斜面上的第一次落点位置正

49、确的选项是A.在 c 点与 d 点之间B.在 d 点与 e 点之间C.在 e 点之下D.一定在 e 点15.如图 12 所示，一弹簧一端系在0 点，另一端连一质量为m的物体 P,开始物体静止在 A点，弹簧处于原长。另一质量2m的小物体 Q紧靠着 P,将弹簧压缩到B点，现在弹簧的弹力为 F，然后开释两物体。两物体与水平地面的动摩擦因数相等且恒定，以下讲法正确的选项是 P 00JwnhA.刚开释瞬时，PQ间作用力为 FB.刚开释瞬时，PQ间作用力为 2F/3C.在 A、B之间某个位置不包含A点，PQ开始分离D.从 B到 A过程中，物体P的速度一直增大二、实验题本小题共3 小题，共 15 分16.图

50、13 的游标卡尺的示数为acm,bcm。10i i j iltm1 L id1 1 121 1 1 1 1 1 L 1 J 12|cm|L.1 1 L J111 10i i I ri01 1 1 1 1 1 1 1 10ItEl a17.在”探究加速度与力、质量关系 的实验中:1某小组的几位同学在讨论制定实验方案时分不提出以下几点意见，你认为正确的A?实验中一定要测出加速度的具体数值14.A.落地时两物体速率相等C.落地时两物体重力的功率相同如图 11 所示，斜面上有B?落地时两物体机械能相等D.两物体落地的时刻相同a、b、c、d 四个点，ab=bc=cd=de，从 a 点以初速度Vo水平文档