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简单机械

Authored by AU Moe

Science

6th Grade

Used 101+ times

简单机械
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下的工具都是以尖劈的原理操作,除了

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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水龙头是应用什么简单机械的原理操作?

螺旋

轮轴

齿轮

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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尖劈的用途是什么?

利用力来劈开及切割物体

改变施力的方向

把两个物体嵌合在一起

改变物体移动的速度

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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右图显示一个人拧开瓶盖。

瓶口与瓶盖应用什么简单机械的原理?

滑轮

齿轮

轮轴

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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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

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项工具应用了斜面的原理?

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Media Image

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项有关滑轮的说明是正确的?

定滑轮是可以移动的

滑轮组由数个定滑轮组成

动滑轮需要更大的力来操作

定滑轮不能省力

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