
简单机械
Authored by AU Moe
Science
6th Grade
Used 101+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下的工具都是以尖劈的原理操作,除了
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水龙头是应用什么简单机械的原理操作?
螺旋
轮轴
齿轮
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
尖劈的用途是什么?
利用力来劈开及切割物体
改变施力的方向
把两个物体嵌合在一起
改变物体移动的速度
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
右图显示一个人拧开瓶盖。
瓶口与瓶盖应用什么简单机械的原理?
滑轮
齿轮
轮轴
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项有关上图齿轮的说明是正确的?
小齿轮转得比较慢
大齿轮转得比较快
它们转动的方向一致
它们以相反的方向转动
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项工具应用了斜面的原理?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项有关滑轮的说明是正确的?
定滑轮是可以移动的
滑轮组由数个定滑轮组成
动滑轮需要更大的力来操作
定滑轮不能省力
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