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四年级 科学 机械

Authored by Lee Mei

Science

4th Grade

Used 200+ times

四年级 科学 机械
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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

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

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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?

Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

哪一个不是复杂机械?

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

1 min • 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

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