配套习题- 判断摩擦力存在的方法 -【青果学院】

1/5单选题

难度：

1.

人类日常生活离不开摩擦力，如果没有摩擦力，我们将不能走路、汽车不能运动…下列关于摩擦力的说法中正确的是（　　）

A	吃饭时拿在手中的筷子不会滑落，是因为有摩擦力的作用
B	汽车轮胎表面都有花纹，是为了减小摩擦
C	猴子沿竖直竹竿匀速上爬，是因为摩擦力大于猴子重力
D	在结冰的水平路面上洒些细土，人走上去不易滑倒，是因为此时人与路面间的静摩擦力减小了

正确答案：QQ==

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

2/5单选题

难度：

2.

关于摩擦力，下列说法正确的（　　）

A	摩擦力的方向一定和物体的运动方向相反
B	摩擦力一定阻碍物体的运动，所以它总是阻力
C	摩擦力既可作为阻力，有时也能当作动力
D	我们常用增大压力的办法来增大静摩擦力

正确答案：Qw==

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

3/5单选题

难度：

3.

下列情况中，物体不受摩擦力的是（　　）

A	小车静止放在水平地面上
B	木块静止放在斜坡上
C	货物随传送带一起斜向上匀速运动
D	足球在地面上滚动

正确答案：QQ==

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

4/5单选题

难度：

4.

如图所示，各物体不受摩擦力的是（　　）

A
B
C
D

正确答案：QQ==

PGRpdj5B44CB54mp5L2T6Z2Z5q2i5Zyo5rC05bmz5Zyw6Z2i5LiK77yM54mp5L2T5LiO5Zyw6Z2i6Ze05pei5rKh5pyJ5Y+R55Sf55u45a+56L+Q5Yqo77yM5Lmf5rKh5pyJ6L+Q5Yqo6LaL5Yq/77yM5omA5Lul54mp5L2T5ZKM5Zyw6Z2i5LmL6Ze05LiN5a2Y5Zyo5pGp5pOm5Yqb77yM56ym5ZCI6aKY5oSPLjwvZGl2PjxkaXY+QuOAgeeJqeS9k+WPl+WIsOaLieWKm+S9nOeUqO+8jOiZveeEtuayoeaciei/kOWKqO+8jOS9huaYr+aciei/kOWKqOi2i+WKv++8jOeJqeS9k+WSjOWcsOmdouS5i+mXtOWtmOWcqOaRqeaTpuWKm++8jOS4jeespuWQiOmimOaEjy48L2Rpdj48ZGl2PkPjgIHniankvZPpnZnmraLlnKjmlpzpnaLkuIrvvIzniankvZPmnInkuIvmu5HnmoTotovlir/vvIzniankvZPlkozmlpzpnaLkuYvpl7TlrZjlnKjmkanmk6blipvvvIzkuI3nrKblkIjpopjmhI8uPC9kaXY+PGRpdj5E44CB54mp5L2T5Y+X5Yiw5ouJ5Yqb5L2c55So77yM6L+b6KGM5YyA6YCf55u057q/6L+Q5Yqo77yM54mp5L2T5ZKM5Zyw6Z2i5LmL6Ze05Y+R55Sf55u45a+56L+Q5Yqo77yM54mp5L2T5ZKM5Zyw6Z2i5LmL6Ze05a2Y5Zyo5pGp5pOm5Yqb77yM5LiN56ym5ZCI6aKY5oSPPC9kaXY+

5/5单选题

难度：

5.

关于摩擦力，下面说法正确的是（　　）

A	相互压紧的粗糙物体之间总是有摩擦力
B	一个物体只有跟另一个物体表面压紧，并有相对运动或发生相对运动趋势时才有可能受到摩擦力
C	发生相对运动的两个物体，一定存在摩擦力
D	只有静止的物体，才受到静摩擦力的作用

正确答案：Qg==

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