Free Printable phy_2.7_momentum 動量 1

Worksheets

Name

Class

Date

The equation to calculate momentum is

計算動量的方程是

$p=\frac{1}{2}mv^2$

$p=mgh$

$p=mv$

$p=mg$

Which of the following physical quantities is NOT a vector?

以下哪一個物理量不是向量﹖

Velocity 速度

Weight 重量

Momentum 動量

Work 功

Which of the following is NOT a unit of momentum?

以下哪一項不是動量單位？

N s

kg ms^-1

kg ms^-2

Find the momentum of the dog.

Take the direction towards the left as positive.

求小狗的動量。

取向左為正。

–80 kg m s^–1

–100 kg m s^–1

80 kg m s^–1

100 kg m s^–1

Find their total momentum.

Take the direction towards the left as positive.

求兩者的總動量。

取向左為正。

-20 kg ms^-1

-180 kg ms^-1

20 kg ms^-1

180 kg ms^-1

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