简单机械(轮轴)

Quiz
•
Science
•
4th Grade
•
Hard
LEE Moe
Used 36+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
轮轴是由什么组成的?
斜面
轮和轴
齿状轮
2.
MULTIPLE CHOICE QUESTION
30 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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
轮轴中两个轮子转动的速度是怎样的?
相同
不相同
4.
MULTIPLE CHOICE QUESTION
30 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
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
轮轴应用了哪个简单机械的原理?
齿轮
滑轮
杠杆
尖劈
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
轮轴中的轮子较……较省力。
小
大
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
转动哪个轮轴最省力?
轮子小的轮轴
轮子和轴心直径相差小
轮子和轴心的直径相差大
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