
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

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
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
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
磨损物体
摩擦力的好处
摩擦力的坏处
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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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