六年级简单机械
Authored by Min Hui Lee
Science
6th Grade
Used 1+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个是第二类杠杆？
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下图那个是第三类杠杆？
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中的杠杆施力如何？
省力
费力
不省力，也不费力
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
当大齿轮以顺时针的方向转动时，会带动小齿轮同样以顺时针方向转动。
对
错
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一种工具属于第二类杠杆？
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“斜面越长，斜面的倾斜度越小，就越省力。”
对
错
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
剪刀属于哪一类杠杆？
一
二
三
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