
五年级科学机械
Quiz
•
Science
•
5th Grade
•
Medium
Siewchin Chai
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是螺旋?
由斜面所组成,一端较厚
有重点、支点和力点
能减少抬起重物的负担
将斜面缠绕在圆柱体上
2.
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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中的活动运用了哪些简单机械原理?
轮轴和螺旋
尖劈和杠杆
杠杆和齿轮
尖劈和轮轴
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自行车应用了几个简单机械操作。
以下哪一个不是自行车应用的简单机械?
杠杆
尖劈
齿轮
轮轴
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
试把复杂机械和它所应用的简单机械匹对。
齿轮,螺旋,轮轴
尖劈,齿轮,螺旋
齿轮,轮轴,螺旋
齿轮,轮轴,斜面
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
试把复杂机械和它所应用的简单机械匹对。
齿轮,杠杆,螺旋,尖劈
杠杆,齿轮,轮轴,尖劈
齿轮,轮轴,螺旋,尖劈
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是复杂机械?
结构简单外形复杂的机械
可使工作省时但费力的机械
由两种以上的简单机械组成
可轻易进行工作的工具
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