第三章第六章動量與碰撞

第三章第六章動量與碰撞

11th Grade

25 Qs

quiz-placeholder

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第三章第六章動量與碰撞

第三章第六章動量與碰撞

Assessment

Quiz

Physical Ed

11th Grade

Medium

Used 9+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

某物質量為2.0 kg,初速3.0 m/s向東;受力作用5.0 s後,末速為4.0 m/s向西,則所受動量變化大小為多少N.s?

2.0

6.0

8.0

12.0

14.0

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

原為靜止的物體爆裂成3塊已知碎塊皆在同一水平面上,且質量皆相等,若甲以8 m/s向東飛出,丙以6 m/s向南飛去,則乙的動量方向為何?

向西偏北

向西偏南

向東偏南

向東偏北

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

質量2 kg的物體A以10 m/s速度撞上1 kg的靜止物體B,撞後A沿原運動方向以5 m/s前進,則撞後B的速率為何?

8 m/s

10 m/s

12 m/s

15 m/s

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

設於無摩擦之桌面上置有7個相同的鋼球,其中四個接連排放一列,另三個自左方以速度v正面彈性碰撞此四球,如圖所示。假設為彈性碰撞,則碰撞後有幾個球離開?

1

2

3

4

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

質量m的紅皮球(左球)向質量同為m的綠皮球(右球)相向作正向彈性碰撞,紅皮球的速率為v、綠皮球的速率為v/4,如圖,則碰撞後紅皮球的速率為何?

v/4

v/3

v/2

v

2v

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

質量分別為10公斤和5公斤的兩球以附圖速度作一維碰撞,試問哪一張圖可能是其碰撞後的結果?

Media Image
Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若兩物體發生碰撞,碰撞前後系統總動能守恆,則兩者屬於何種碰撞? 

彈性碰撞

非彈性碰撞

完全非彈性碰撞

正向碰撞

斜向碰撞

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