利用槓桿原理的物品有哪些:－2016阿基師年菜食譜大全 , 家常年菜食譜大全 , 素食年菜食譜大全 , 簡易年菜食譜大全 , 年菜食譜 , 年菜食譜做法 , 阿基師年菜食譜 ,

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利用槓桿原理的物品有哪些

Oct 14th 2013, 13:40

支點在中間.....
剪刀、天平、槓桿、蹺蹺板、起釘器
優點:可省力、省時或改變施力方向

抗力點在中間......
開瓶器裁紙刀、釘書機、獨輪車
優點:一定省力 (但費時)

施力點在中間.....
筷子、掃帚、聶子、打棒球、麵包夾
優點:一定省時 (但費力)

參考資料：課本

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