六年级科学 第十二课 《机械》杠杆+斜面
Authored by LOH YIENG CHEW
Science
1st - 7th Grade
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
支撑杠杆的转动中心是__。
重点
支点
力点
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
杠杆上施力的位置是__。
支点
重点
力点
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
重物负荷的位置是__。
重点
支点
力点
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一种是第一类杠杆？
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一种是第二类杠杆？
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一种是第三类杠杆？
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个不是杠杆的重要位置？
支点
重点
力点
定点
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