阿基米得說:給我一個?我可以撐起一個地球。?是指什麼?

槓桿與輪軸

Quiz
•
Science
•
6th Grade
•
Medium
張玉珍 張玉珍
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
抗力點
施力點
支點
施力臂
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
若要達到省力,抗力點到支點得距離就( )
長
短
視情況而定
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一種槓桿,是會達到省力的槓桿
支點--施力點--抗力點
抗力點--支點--施力點
抗力點--施力點--支點
施力點--抗力點-- 支點
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
使用輪軸機械時,施力在輪上的的效應,相當於以下哪一個槓桿效益?
施力臂 抗力臂
施力臂 抗力臂
施力臂 抗力臂
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一個是省力的裝置?
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
小玉想要抬起50公斤的重物,抗力點和支點都固定,下列哪一種長度的施力臂最省力?
1公尺
2公尺
3公尺
4公尺
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
使用輪軸時,如果將重物掛在軸上、施力在輪上時,會達到省力效果,是因為?
輪半徑 軸半徑
輪半徑 軸半徑
輪半徑 軸半徑
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