
2-3輪軸
Quiz
•
Science
•
1st - 5th Grade
•
Practice Problem
•
Medium
陳耀民 老師
Used 1+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
定滑輪是一種位置固定,不隨物品移動的滑輪,是省力的工具。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
使用動滑輪時,手拉繩子的方向,和重物移動的方向相同。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
進行「定滑輪實驗」時,會發現物體上升的距離和手拉動繩子的長度不一樣。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用動滑輪拉動重物時,手拉動繩子的長度等於物體移動的距離。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
進行「定滑輪實驗」時,使用定滑輪拉動物體,物體移動的方向會和施力的方向相同。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
使用定滑輪搬運重物,可以省約一半的力。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
使用定滑輪時,施力臂是抗力臂的 2 倍,所以可以省一半的力。
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