简单机械 - 轮轴
Authored by yong oi
Science, Fun
1st - 12th Grade
Used 3+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
轮轴是机械吗？
是
不是
2.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
以下哪一个是用轮轴的机械？
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
轮轴是由什么组成的？
斜面
轮和轴
齿状轮
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
轮轴中的两个轮子转动的方向是怎样的？
方向相同
不同方向
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
轮轴中两个轮子转动的速度是怎样的？
相同
不相同
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
当轮子以逆时方向转动，轴转动的方向是……
顺时
逆时
停止
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
轮轴应用了哪个简单机械的原理？
齿轮
滑轮
杠杆
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