四年级科学机械

Quiz
•
Science
•
4th Grade
•
Medium
Alice Thai
Used 14+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以下哪项属于简单机械?
杠杆
电脑
齿轮
尖劈
2.
MULTIPLE CHOICE QUESTION
30 sec • 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
30 sec • 1 pt
手表应用了以下简单机械,除了__________
齿轮
螺旋
斜面
轮轴
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“斜面越长,斜面的倾斜度越小,就越省力。”
对
错
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下的工具都是以尖劈的原理操作,除了
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
简单机械有几个种类?
6
5
9
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“边缘呈齿状的轮,转动一个齿轮能带动另一个齿轮。”
以上的简述是指哪样简单机械?
斜面
滑轮
齿轮
螺旋
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