2021年杠杆原理题目解析.pdf

《2021年杠杆原理题目解析.pdf》由会员分享，可在线阅读，更多相关《2021年杠杆原理题目解析.pdf（6页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、杠杆1.关于杠杆的下列说法中，正确的是()A.杠杆必须是一根直棒B.杠杆不一定要有支点C.使用杠杆都是为了省力D.杠杆可以是直的，也可以是弯的2.如图所示的杠杆正处于水平平衡，若在标杆两边的钩码下再加一个钩码(钩码的质量都相同)，杠杆将()A.还继续处于水平平衡B.右端上升，左端下降C.右端下降，左端上升D.无法确定杠杆的运动状态3.如图所示，体积之比为12 的甲、乙两个实心物块，分别挂在杠杆两端，此时杠杆恰好水平平衡，则甲、乙两个物块的密度之比为()A.11 B.1 2 C.21 D.41 4.如图所示实例中，属于费力杠杆的是()精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-

2、第 1 页，共 6 页5.踮脚是一项很好的有氧运动(如图 12-1-7)，它简单易学，不受场地的限制，深受广大群众的喜爱，踮脚运动的基本模型是杠杆，下列分析正确的是()A.脚后跟是支点，是省力杠杆B.脚后跟是支点，是费力杠杆C.脚掌与地面接触的地方是支点，是省力杠杆D.脚掌与地面接触的地方是支点，是费力杠杆6.生活中经常用到各式各样的剪刀都是一对杠杆.在使用剪刀的时候，下图中最能省力的剪刀是()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:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3

3、 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1

4、S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N

5、6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y

6、2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W

7、9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:

8、CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9

9、V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W97.如图 所示，杠杆 始终处于 水平 平衡 状态，改变 弹 簧测 力计 拉力 的 方向，使其 从，此过程中，弹簧测力计的示数将()A.逐渐变大B.逐渐变小C.先变大后变小D.先变小后变大8.如图所示，杠杆处于平衡状态，如果将物体A 和 B 同时向靠近支点的方向移动相同的距离，下列判断正

10、确的是()A.杠杆仍能平衡B.杠杆不能平衡，左端下沉C.杠杆不能平衡，右端下沉D.无法判断9.如图所示，作用在杠杆一端且始终与杠杆垂直的力F，将杠杆缓慢地由位置A 拉至位置 B，在这个过程中，力F的大小将()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:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7

11、N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8

12、Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6

13、W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码

14、:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T

15、9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P

16、3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H

17、1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9A.不变B.变小C.变大D.先变大后变小10.端午节赛龙舟时，运动员一手撑住浆柄的末端(视为支点)，另一手用力划桨，如图所示.此时桨属于 _(填“省力”“费力”或“等臂”)杠杆；当运动员向后划桨时，龙舟就向前行进，说明物体间力的作用是_.11.如图所示，足够长的均匀木板已调节到水平平衡状态.在支点O 的两边分别有做相同匀速直线运动的甲、乙两玩具电动小车，当重为 4 N 的甲车位于支点右边距支点3 m 处时，为保持木板平衡，重为 6 N的乙车应在支点左边距支点_m处.如果甲

18、车速度为0.15 m/s，则乙车的速度应为_m/s 才能保持木板平衡始终不能被破坏.(车未到支点O 前).12.如图所示，利用羊角锤撬起钉子，请你在羊角锤A 点处画出所能施加最小动力F1，并画出阻力F2 的阻力臂 l2.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:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H

19、1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7

20、N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8

21、Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6

22、W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码

23、:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T

24、9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P

25、3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W913.如图所示，用起子开启瓶盖，请确定支点O 的位置，画出F的力臂.14.小锦小组用刻度均匀的匀质杠杆进行“探究杠杆平衡条件”的实验中，每个钩码质量相等.(1)将杠杆的中点置于支架上，当杠杆静止时，发现杠杆左端下沉，他将杠杆左端平衡螺母向右调节到最大限度后，杠杆左端仍有轻微下沉，这时他应将右端的平衡螺母向_端调节，才能使杠杆在水平位置平衡.(2)如图甲所示，是他在探究过程中的一个情境，接下来他在两边钩码的下方各加一个相同的钩码，并将左端钩码移到左端离支点第三格

26、处，为了使杠杆在水平位置平衡，他应将右端钩码移动到右端离支点第_格处.(3)通过不断改变两端所挂钩码的个数和位置，使杠杆在水平位置平衡，并记录各次实验数据，通过对数据分析后得出结论：动力 支点到动力作用点的距离=阻力 支点到阻力作用点的距离.与其他小组交流后，他们又做了如图乙、丙、丁三次实验，其中_图所示实精品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:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC

27、9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10

28、F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 Z

29、F8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9

30、I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档

31、编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC1

32、0T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U

33、6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9验能直接说明该结论是错误的.15.小明利用刻度均匀的匀质杠杆做探究“杠杆的平衡条件”实验.(1)实验前，将杠杆的中点置于支架上，当杠杆静止时，发现杠杆右端下沉，这时应将平衡螺母向 _(填“左”或“右”)端调节，直到杠杆在水平位置平衡.(2)得出杠杆的平衡条件“动力 动力臂=阻力 阻力臂”后，小明又进一步探究杠杆平衡时动力和动力臂的关系.实验过程中，保持阻力和阻力臂不变，在杠

34、杆水平平衡时，测出多组动力F1 和动力臂l1 的数据，并绘制了F1 与 l1 的关系图象，如图所示，请根据图象推算，当l1为 0.1 m 时，F1为 _N.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:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V

35、3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3

36、HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S

37、10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6

38、 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2

39、F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9

40、文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9文档编码:CC10T9V3U6P3 HC9H1S10F7N6 ZF8Y2F9I6W9