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Ch2 力與運動(前測)

Authored by Nanyu Cheng

Physics

9th - 10th Grade

Used 2+ times

Ch2 力與運動(前測)
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一物體之加速度為零,則此物體

必定靜止

必做等速率圓周運動

可能靜止或做等速度運動

必做等速度直 線運動

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

記錄物體之直線運動情形: t1 = 2s, x1 = 3m; t2 = 5s, x2 = 9m,則其平均速率 v =

0.4

0.5

1.2

2.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

記錄物體之直線運動情形: t1 = 2s, x1 = 3m; t2 = 5s, x2 = 9m,則其平均速度 v =

0.4

0.5

1.2

2.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有一條彈簧,懸掛 2 公斤重的物體時,其形變量為 2 公分,則 該彈簧的力常數為

0.5

1

1.5

2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

物體不受外力作用,則維持其運動狀態不變,此謂之為物體的

慣性

彈性

慣量

反作用力

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

車輪帶泥,輪轉動則泥巴往外飛其原理是

離心力之作

重力速度之作用

向心力作用

慣性作用

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

某力作用於 4 公斤物體上,使其以 5 m / s2 的加速度運動,今 以相同力作用於 5 公斤物體上,則其加速度為

2 m/s2

4 m/s2

5 m/s2

10 m/s2

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