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107-2-3 8ch6

Authored by Rusber Ru

Physics

8th Grade

Used 1+ times

107-2-3 8ch6
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25 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列何者屬於超距力?

物體的彈力

手提東西之力

馬拉車之力

磁鐵吸引鐵粉的力

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列哪一個現象可以確定受到力的效應?

放在桌上的橡皮筋
裂開或隆起的地表
桌上靜止不動的書
停車格內靜止的車子

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

如圖所示,甲物體所受向左的作用力大小為多少?(一格代表 5gw)

40gw

20gw

10gw

5gw

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列何者不是處在兩力平衡的狀態?

放在地面上的椅子
手將弓箭拉滿後,靜止不動
浮在平靜無波水面上的落葉
足球在地上愈滾愈慢

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

如圖所示,當鐵環保持靜止不動時,若以 F1、F2、F3 各表示三個彈簧秤的讀數,則 F1、F2、F3 的關係為何?

F1=F2=F3

F2+F3=F1

F1+F2=F3

F1+F3=F2

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

一個靜止的物體,同時受兩力作用,若仍維持靜止狀態,則此兩力的夾角為何?

180°

90°

60°

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

如圖,將重量不同的四個物體分別掛在性質完全相同的甲、乙、丙、丁四根彈簧的下端,其伸長的程度皆不同,則哪一個物體所受的彈簧拉力最大?

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