使用榨汁器來榨取檸檬汁時,檸檬與榨汁器接觸的位置稱為什麼?
國小自然六下1-1

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Education
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1st Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
抗力點
2.
FLASHCARD QUESTION
Front
槓桿工具中,施力的位置稱為什麼?
Back
施力點
3.
FLASHCARD QUESTION
Front
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,使槓桿保持水平平衡。當蘋果掛在支點左邊的哪一個位置時,阿力會最省力?
Back
離支點10公分處
4.
FLASHCARD QUESTION
Front
透過槓桿實驗可以知道,當抗力及抗力臂固定時,要使槓桿水平平衡,施力臂與施力的關係會如何?
Back
施力臂越長,越省力
5.
FLASHCARD QUESTION
Front
下列哪一種情形不是槓桿原理的應用?
Options: 用榨汁器榨取檸檬汁, 用開瓶器打開汽水瓶瓶蓋, 用尖嘴鉗夾斷鐵絲, 用一條裝滿水的水管幫水族箱換水
Back
用一條裝滿水的水管幫水族箱換水
6.
FLASHCARD QUESTION
Front
阿民在槓桿支點的左邊第5格處掛上8個等重的小砝碼,然後在支點的右邊第4格處掛上一個20克重的大砝碼,使槓桿達成水平平衡,請問一個小砝碼有多重?
Back
2克重
7.
FLASHCARD QUESTION
Front
下列關於槓桿的敘述,何者正確?
施力點在中間的槓桿一定省力, 抗力點在中間的槓桿一定費力, 支點在中間的槓桿可能省力、可能費力,也可能不省力也不費力, 槓桿是否省力和支點、抗力點、施力點的位置沒有關係
Back
支點在中間的槓桿可能省力、可能費力,也可能不省力也不費力
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