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四年级科学练习62(简单机械)

Authored by LIEW Moe

Science

1st Grade

Used 53+ times

四年级科学练习62(简单机械)
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10 questions

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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

Media Image

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

3.

MULTIPLE CHOICE QUESTION

30 sec • 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?

Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

手表应用了以下简单机械,除了__________

齿轮

螺旋

斜面

轮轴

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

Media Image
Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

水龙头是应用什么简单机械的原理操作?

螺旋

轮轴

齿轮

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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

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