自然複習0410
Quiz
•
Science
•
6th - 8th Grade
•
Practice Problem
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Medium
Chen陳Jimmy吉米 Chen陳Jimmy吉米
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50 questions
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1.
MULTIPLE CHOICE QUESTION
45 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？
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
由支點到抗力點的距離稱為什麼？
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
用湯匙將奶粉蓋撬開是哪一種原理的運用？
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
槓桿中，施力臂不變，若物體愈靠近支點，施力要如何才能使槓桿維持平衡？
5.
MULTIPLE CHOICE QUESTION
45 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？
6.
MULTIPLE CHOICE QUESTION
45 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？
7.
MULTIPLE CHOICE QUESTION
45 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？
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