簡單機械
Flashcard
•
Physics
•
6th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
定滑輪的功能是什麼?
Back
定滑輪可以改變施力的方向,並且在某些情況下可以省力。
2.
FLASHCARD QUESTION
Front
動滑輪的特點是什麼?
Back
動滑輪可以減少施力,但施力的方向不會改變。
3.
FLASHCARD QUESTION
Front
施力臂和抗力臂的定義是什麼?
Back
施力臂是施力點到支點的距離,抗力臂是抗力點到支點的距離。
4.
FLASHCARD QUESTION
Front
槓桿的支點是什麼?
Back
槓桿的支點是槓桿轉動的中心點,施力點和抗力點相對於支點的位置會影響槓桿的效果。
5.
FLASHCARD QUESTION
Front
如何利用槓桿原理省力?
Back
通過調整施力點和抗力點的位置,可以利用槓桿原理來省力。
6.
FLASHCARD QUESTION
Front
輪軸的原理是什麼?
Back
輪軸的原理是利用輪子的轉動來減少摩擦力,從而使施力更有效率。
7.
FLASHCARD QUESTION
Front
定滑輪與動滑輪結合使用的效果是什麼?
Back
能省力且改變施力方向。
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