國中自然3上ch2-5力矩與槓桿原理
Quiz
•
Physics
•
9th Grade
•
Practice Problem
•
Hard
翰林出版國中自然 翰林出版國中自然
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
木棒一端固定但可自由轉動,受三力F1、F2與F3的作用如圖。若三力對支點(轉軸)O的力臂分別為d1、d2與d3,則下列大小關係何者正確?
d3>d2>d1
d3>d2=d1
d1>d2>d3
d2>d1>d3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪個系統不是處於靜力平衡?
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
如圖,作用力F產生的力矩大小為多少?
0 kgw-m
50 kgw-m
120 kgw-m
130 kgw-m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖的甲、乙、丙、丁四力大小相等,請問哪一個力產生的力矩最大?
甲
乙
丙
丁
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
欲將一球推上臺階,分別施以四個力為F1、F2、F3、F4,推的過程中只有單純的滾動,在附圖,已標示支點所在,哪一個施力為最小,就能達成目的?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
安琪利用起釘器將釘子拔起,其施力 F 的大小、方向如圖所示,則她施力的力矩大小為下列何者?
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
當你開門(轉動的門)時,要想省力,則推的位置應如何?
距離軸愈遠愈好
距離軸愈近愈好
推在轉軸上最好
任何部分一樣省力
8.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
如圖所示,槓桿的右端掛一重量為 10 公斤重的 W2,在槓桿的左端掛著重量為 W1 的物體。已知 2X1=X2,若不計桿重,則 W1 為多少公斤重?
40
10
20
30
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