四年级 科学 机械
Quiz
•
Science
•
4th Grade
•
Practice Problem
•
Medium
Lee Mei
Used 200+ times
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12 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
以下哪项属于简单机械?
杠杆
电脑
齿轮
尖劈
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
“切割、劈开或凿(záo)开物体。”
以下哪样简单机械符合上述用途?
齿轮
尖劈
螺旋
斜面
3.
MULTIPLE CHOICE QUESTION
1 min • 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
4.
MULTIPLE CHOICE QUESTION
1 min • 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
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
W工具运用了以下的简单机械原理来操作:
轮轴
杠杆
斜面
哪一个最有可能是W工具?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪一个不是复杂机械?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
手表应用了以下简单机械,除了__________
齿轮
螺旋
斜面
轮轴
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