物理中的數學2

物理中的數學2

10th Grade

10 Qs

quiz-placeholder

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物理中的數學2

物理中的數學2

Assessment

Quiz

Physics

10th Grade

Practice Problem

Hard

Created by

Kai Xie

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在12.34中,有幾位有效數字?

1

2

3

4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在0.00123400中,有幾位有效數字?

9

8

6

4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 1234001234\overline{0}0  中,有幾位有效數字?

6

5

4

3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小貞從學校走到水果攤走了1.2340公里,又從水果攤走到飲料店走了 85085\overline{0}  公尺,則小貞總共走了多少公里?

2.08

2.084

2.0840

2.08400

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知阿聖用平均速率為12.3m/s,跑了5.487秒,則阿聖共跑多少公尺?

67.4901

67.490

67.49

67.5

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一斜面傾角為30度,一物體置於斜面上,已知重力加速度為10 ms2\frac{m}{s^2}  ,則沿斜面加速度大小為何?


10

5

 525\sqrt{2}  

 535\sqrt{3}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

已知半衰期的定義是,母元素為原來一半所經歷的時間,若碳元素的半衰期為6000年,則有一古物中碳元素為原來的3/4,則此古物約為多少年前的物品?(log2=0.3,log3=0.5)(提示:半衰期的次數= log34÷log12\log\frac{3}{4}\div\log\frac{1}{2}  )

2000

3000

4000

6000

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