6 力和摩擦力
Quiz
•
Science
•
1st - 10th Grade
•
Hard
LOY Moe
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下雪会使地面的摩擦力变大,为了安全上的考量,车辆在雪地里行驶必须在车轮上挂雪链。
对
错
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
飞机的流线型外型是为了减少空气中的摩擦力。
对
错
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在脚踏车的齿轮和链条上油,可以防止金属零件生锈,也可以减少运转时产生的摩擦力。
对
错
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
袜子的底部有止滑的颗粒,可以增加袜底与接触面的摩擦力。
对
错
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
摩擦力在我们的生活中只会造成不方便。
对
错
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
海绵受力后会出现受力不均的现象,所以不适合当作测量力的工具。
对
错
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
进行拔河比赛时,两队所施的力方向相同。
对
错
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