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专题8摩擦力_4.2025物理总复习_赠品通用版(老高考)复习资料_专项复习_2023《微专题·小练习》·物理·L-5

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专题8摩擦力_4.2025物理总复习_赠品通用版(老高考)复习资料_专项复习_2023《微专题·小练习》·物理·L-5
专题8摩擦力_4.2025物理总复习_赠品通用版(老高考)复习资料_专项复习_2023《微专题·小练习》·物理·L-5
专题8摩擦力_4.2025物理总复习_赠品通用版(老高考)复习资料_专项复习_2023《微专题·小练习》·物理·L-5
专题8摩擦力_4.2025物理总复习_赠品通用版(老高考)复习资料_专项复习_2023《微专题·小练习》·物理·L-5

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专题 8 摩擦力 1.[2022·重庆市西南大学附中期末]现有一台台式电风扇放在水平桌面上,该电风扇运 行时,调节它的“摇头”旋钮可改变风向,但风向一直水平.若电风扇底座在桌面上始终 不发生移动,下列说法正确的是( ) A.电风扇受到两个力的作用 B.桌面对电风扇的摩擦力大小和方向都不变 C.风扇对空气的作用力与桌面对风扇的摩擦力互相平衡 D.空气对风扇的作用力与桌面对风扇的摩擦力大小相等 2. [2022·浙江省金华调研]如图所示,重为800 N的沙发放在水平地面上,体重600 N的 小王至少要用96 N的水平力推沙发,才能使沙发从原地开始运动.沙发开始运动以后,小 王用80 N的水平力推沙发,就可以使沙发保持匀速直线运动.以下说法正确的是( ) A.沙发与地面之间的动摩擦因数为0.12 B.若用90 N的水平力推这个静止的沙发,则此时沙发所受的摩擦力大小为80 N C.若用96 N的水平力推这个已经在运动的沙发,则此时沙发所受的摩擦力大小为 96 N D.小王盘腿坐在沙发上,小李用 140 N的水平力推已经在运动的沙发,可使小王和 沙发保持匀速运动 3.[2022·“皖豫名校联盟体”考试]轮椅分为电动和手动轮椅,是用于伤员、病人、残 疾人居家康复、周转运输、就诊、外出活动的重要移动工具.如图是一款手动轮椅,该轮 椅共有4个轮子,人用双手推动手轮驱动轮椅向前运动.关于地面对4个轮子的摩擦力,下列说法正确的是( ) A.前轮、后轮受到的摩擦力都向前 B.前轮、后轮受到的摩擦力都向后 C.前轮受到的摩擦力向前,后轮受到的摩擦力向后 D.前轮受到的摩擦力向后,后轮受到的摩擦力向前 4.[2022·江苏省高邮市调研]在机场和海港,常用输送带运送旅客的行李和货物,如图 所示,甲为水平输送带,乙为倾斜输送带,当行李箱m随输送带一起匀速运动时,不计空 气阻力,下列几种判断中正确的是( ) A.甲情形中的行李箱受到向右的摩擦力 B.乙情形中的行李箱受到沿斜面向下的摩擦力 C.乙情形中的行李箱受到沿斜面向上的摩擦力 D.甲情形中的行李箱受到向左的摩擦力 5. [2022·广东省质检](多选)如图所示,C是水平地面,A、B是两个长方形物块,F是作 用在物块B上沿水平方向的力,物体A和B以相同的速度做匀速直线运动.由此可知, A、B间的动摩擦因数μ 和B、C间的动摩擦因数μ 有可能是( ) 1 2 A.μ=0,μ=0 B.μ≠0,μ=0 1 2 1 2 C.μ=0,μ≠0 D.μ≠0,μ≠0 1 2 1 2 6.[情境创新]如图所示,在倾角为θ=37°的斜面上放置一质量为0.5 kg的物体,用一 大小为1 N,平行于斜面底边的水平力F推物体时,物体保持静止.已知物体与斜面间的 动摩擦因数为,物体受到的摩擦力大小为(sin 37°=0.6,cos 37°=0.8,g取10 m/s2)( ) A.3 N B.2 N C. N D. N 7.如图所示为研究物块与木板之间摩擦力大小的实验装置.将一物块和木板叠放于水 平桌面上.轻质弹簧测力计一端固定,另一端用细线与物块水平相连.现在用轻绳与长木 板连接,用手向右水平拉轻绳,使长木板在桌面上滑动.弹簧测力计示数稳定后,下列说 法正确的是( ) A.物块与木板之间的摩擦力是静摩擦力B.木板必须在桌面上做匀速直线运动 C.弹簧测力计示数一定等于物块受到的摩擦力 D.弹簧测力计示数一定等于木板受到的摩擦力 8.[情境创新]如图,某同学在沙料场中发现沙子堆积时会形成圆锥体,且堆积过程中 圆锥体的底角保持不变.他测得某堆沙子的底部周长约为 30 m,沙子之间的动摩擦因数约 为0.8,则这堆沙子的体积约为(圆锥体的体积等于底面积与高的乘积的三分之一)( ) A.1×102 m3 B.2×102 m3 C.3×102 m3 D.8×102 m3 9.如图所示,在倾角为θ的斜面上,静止着两个质量均为m的物块A、B.两物块之间 连接着一劲度系数为k的轻质弹簧,两物块和斜面间的动摩擦因数均为μ,物块和斜面间的 最大静摩擦力等于滑动摩擦力,重力加速度为g,则弹簧的最大伸长量是( ) A. B. C. D. 10. [2022·济宁市邹城市考试]如图所示,轻质弹簧一端系在质量为m=1 kg的小物块上, 另一端固定在墙上.物块在斜面上静止时,弹簧与竖直方向的夹角为37°,已知斜面倾角θ =37°,斜面与小物块间的动摩擦因数μ=0.5,斜面固定不动.设物块与斜面间的最大静摩 擦力与滑动摩擦力大小相等,重力加速度取g=10 m/s2,sin 37°=0.6,cos 37°=0.8.下列说 法正确的是( ) A.小物块可能只受三个力 B.弹簧弹力大小一定等于4 N C.弹簧弹力大小可能等于5 N D.斜面对物块的支持力可能为零 11.(多选)如图所示,装载石块的自卸卡车静止在水平地面上,车厢倾斜至一定角度 时,石块沿车厢滑至车尾.若车厢倾斜至最大角度时还有部分石块未下滑,货车会向前加 速,从而把残余石块卸下.设最大静摩擦力等于滑动摩擦力,则( )A.增加车厢倾斜程度的过程中,石块受到的支持力一直增加 B.增加车厢倾斜程度的过程中,未下滑的石块受到的摩擦力一直增加 C.增加车厢倾斜程度的过程中,所有石块受到的摩擦力先增加后减小 D.卡车向前加速时,残余石块所受最大静摩擦力会减小 12.(多选)如图所示,斜面体放置在粗糙的水平地面上,在沿斜面向上的推力F作用 下,物体A和斜面体B均保持静止.若减小推力F,物体A仍然静止斜面上,则( ) A.斜面对物体A的作用力不一定变小 B.斜面对物体A的支持力一定变小 C.斜面对物体A的摩擦力一定变小 D.地面对斜面体的摩擦力一定变小 13.(多选)如图所示,用水平力F拉着一物体在水平地面上做匀速直线运动,从t=0 时刻起水平力F的大小随时间均匀减小,到t 时刻F减小为零.物体所受的摩擦力F 随时 1 f 间t的变化图象可能是( )
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  1. CONNECT:[ UseTime:0.000684s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000966s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000361s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000254s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000604s ]
  6. SELECT * FROM `set` [ RunTime:0.000294s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000675s ]
  8. SELECT * FROM `wendang` WHERE `id` = 369930 LIMIT 1 [ RunTime:0.000415s ]
  9. UPDATE `wendang` SET `liulancishu` = 1 WHERE `id` = 369930 [ RunTime:0.002454s ]
  10. UPDATE `wendang` SET `lasttime` = 1773091523 WHERE `id` = 369930 [ RunTime:0.000538s ]
  11. SELECT * FROM `wendang` WHERE `id` < 369930 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000407s ]
  12. SELECT * FROM `wendang` WHERE `id` > 369930 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004787s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 369930 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003959s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 369930 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007388s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 369930 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006728s ]
0.101501s