
認識槓桿
Authored by 李國榮 李國榮
Science
10th - 12th Grade
Used 24+ times

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43 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用桿秤時,調整下列何者的位置可以得知待測物的重量?
提環
秤桿
待測物
秤錘
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用槓桿裝置時,當施力臂大於抗力臂會平衡,表示施的力與物體的重量有什麼關係?
施力比物體重量大
施力比物體重量小
施力和物體重量相同
無法判斷
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果想要使槓桿保持平衡,當施力和抗力臂不變時,施力臂愈長,抗力點上的物體重量應該要如何改變?
加重
減輕
不用改變
先加重再減輕
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想要讓槓桿保持平衡,當物體重量與施力臂不變,但是抗力臂變長時,施力要如何改變?
變大
變小
不用改變
先變大再變小
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當槓桿工具的抗力臂和施力臂呈現哪一種關係時,使用時是省力的?
施力臂比抗力臂長
抗力臂比施力臂長
抗力臂與施力臂一樣長
以上三者都會省力
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
支點在中間的槓桿,抗力點距離支點3公分,施力點距離支點6公分,當抗力點掛上6個砝碼時,施力點必須掛上幾個等重的砝碼,槓桿才能保持平衡?
不用掛砝碼就會平衡
3個
6個
12個
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小立利用重量相同的砝碼和抗力點及施力點分別在支點兩端的槓桿進行實驗。當抗力點距離支點6公分且掛上3個砝碼時,如果施力點距離支點2公分,此時施力點必須掛上幾個砝碼,槓桿才能保持平衡?
1個
2個
3個
9個
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