以下哪种斜面最省力?
六年级科学简单机械2

Quiz
•
Science
•
1st - 5th Grade
•
Easy
ANG Moe
Used 90+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中显示应用了尖劈的原理的工具。尖劈的用途是什么?
利用力来劈开或切割物体
改变施力的方向
改变物体移动的速度
把两个物体嵌合在一起
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
瓶口和瓶盖应用什么简单机械地原理?
齿轮
螺旋
斜面
轮轴
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是螺旋?
由斜面所组成,一端较厚
能减少抬起重物的负担
有重点、支点和力点
将斜面缠绕在圆柱体上
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上的简单机械的名称是?
轮轴
螺旋
斜面
杠杆
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上简单机械的名称是?
滑轮
杠杆
轮轴
斜面
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水龙头是应用什么简单机械的原理操作?
螺旋
齿轮
杠杆
轮轴
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