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六年级科学摩擦力的好处和坏处

Authored by ASZ Moe

Science

4th - 6th Grade

Used 2K+ times

六年级科学摩擦力的好处和坏处
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

产生多余的热能

摩擦力的好处

摩擦力的坏处

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

产生热能,帮助取火

摩擦力的好处

摩擦力的坏处

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

控制交通工具的速度

摩擦力的好处

摩擦力的坏处

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

磨损物体

摩擦力的好处

摩擦力的坏处

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

让我们能站稳,并且走路不会滑倒

摩擦力的好处

摩擦力的坏处

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

物体的质量越_______, 其所产生的摩檫力越_______。

重,小

轻,小

轻,大

大,大

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

物体的表面越_______, 物体所产生的摩擦力越 ________

粗糙 , 小

粗糙 , 大

光滑 , 大

光滑 , 没有

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