什么是滑轮?(答案可超过一个)
三年级科学单元十:机械

Quiz
•
Other
•
3rd Grade
•
Hard
LEE LING LAU
Used 12+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
滑轮可以用来提起重物并运到高处,使人们的工作变得较容易
滑轮由绳子和周缘有槽的轮子所组成
滑轮是一种简单机械
滑轮是一种复杂机械
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以上箭头指的是滑轮的哪个部分?
轴
轮
槽
绳
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
滑轮有哪2个特征?
有槽的绳子
轮子
绳子
与槽的轮子
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
它是什么滑轮?
定滑轮
动滑轮
滑轮组
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
它是什么滑轮?
定滑轮
动滑轮
滑轮组
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
利用这种滑轮时,我们的力量是......
向前推
向上推
向下拉
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
利用这种滑轮时,我们的力量是......
向下拉
向上拉
向前推
向后退
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