使用支點在中間的槓桿工具時,會省力嗎?
(6-2)U1簡單機械

Quiz
•
Physics
•
1st - 9th Grade
•
Medium
Used 22+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一定省力
一定不省力
可能省力,也可能不省力
多使用幾次就會省力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在槓桿的支點左邊第二格的位置掛三個等重的砝碼,那麼要在支點右邊第三格的位置掛幾個等重的砝碼,槓桿才會平衡?
1個
2個
3個
4個
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想用一支長木棍移動一顆大石頭,手離撐住長木棍的支點越近時,搬動大石頭所需的施力大小會有什麼變化?
越小
越大
都一樣
用多大的力也無法移動
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿力在槓桿支點的左邊掛一袋蘋果,然後在支點右邊30公分的位置施力,使槓桿保持平衡。當蘋果掛在支點左邊的哪一個位置時,阿力會最省力?
離支點35公分處
離支點30公分處
離支點25公分處
離支點10公分處
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
玩翹翹板時,兩個體重不同的人應該怎麼坐,翹翹板才可能平衡?
兩個人要分別坐在翹翹板兩端
體重較重的人坐在翹翹板一端,體重較輕的人要靠近中央坐
兩個人都要靠近中央坐
體重較重的人要靠近中央坐,體重較輕的人要坐在翹翹板另一端
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用圖中的拔釘器來拔除鐵釘時,它的抗力點在哪個位置呢?
甲
乙
丙
丁
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個人不是應用槓桿原理來做事?
小芳用麵包夾將麵包夾起來
正男用放大鏡來聚集光線
美美用剪刀剪報紙
小凱用湯匙抵住奶粉罐邊緣來撬開蓋子
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