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6下A Ch7 奇妙的工具和機械
觀看影片，並回答問題。
https://youtu.be/CF-XnfmeiUM
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班別
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0 points
6A
6B
6C
6D
學號
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Your answer
車的輪子運用了甚麼原理？
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10 points
斜面
滾輪
滑輪
槓桿
以下哪些物件運用了槓桿原理？
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10 points
剪刀
鉗子
天橋
椅子
槓桿原理中，支點和力點距離愈大，所需的力愈大。
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10 points
對
錯
以下哪個方法最省力？
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10 points
選項 1
選項 2
選項 3
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