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國中自然3上ch2-5力矩與槓桿原理

Authored by 翰林出版國中自然 翰林出版國中自然

Physics

9th Grade

Used 59+ times

國中自然3上ch2-5力矩與槓桿原理
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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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?

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3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

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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

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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?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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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

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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

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