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Gravitational Potential Energy

Total questions: 16

Worksheet time: 11mins

Name
Class
Date
1.

The formula for calculating the gravitational potential energy in an object is shown above. Which object will have the largest value for its GPE

a)
b)
c)
d)
2.

What are Equations for Gravitational Potential Energy?

a)

Gravitational Potential Energy = Mass x Gravitational Field Strength x Height

b)

Gravitational Potential Energy = Weight x Height

c)

Gravitational Potential Energy = Mass x Gravitational Field Strength / Height

d)

Gravitational Potential Energy = Weight / Height

3.

Gravitational Potential Energy (Ep) is...

a)

the energy stored in a stretched object

b)

the energy stored in an electrically charged object

c)

the energy stored in a frozen object

d)

the energy stored in a raised object

4.

An object's gravitational potential energy store can be increased by...

a)

by lifting the object higher

b)

increasing the velocity (speed) of the object

c)

decreasing the size of the object

d)

decreasing the mass of the object

5.

In the equation for gravitational potential energy, 'Ep' stands for

a)

electrical energy

b)

elastic potential energy

c)

kinetic energy

d)

gravitational potential energy

6.

The formula for calculating gravitational potential energy is...

a)

1/2 x mass2 x gravitational field strength x height

b)

mass x gravitational field strength x height

c)

1/2 x mass x gravitational field strength x height

d)

mass x gravitational field strength x height2

7.
The units for mass are...
a)
miles, mi
b)
kilograms, kg
c)
metres, m
d)
grams, g
8.

To convert grams into kilograms...

a)

multiply the grams by 100

b)

divide the grams by 100

c)

multiply the grams by 1000

d)

divide the grams by 1000

9.
In the equation for gravitational potential energy, 'g' stands for...
a)
grams
b)
gravity
c)
gravitational field strength
d)
energy
10.

The units for gravitational field strength are...

a)

Newtons per kilogram, N/kg

b)

Joules, J

c)

degrees celsius, oC

d)

kilograms, kg

11.
To convert km to m...
a)
divide the km by 100
b)
multiply the km by 100
c)
multiply the km by 1000
d)
divide the km by 1000
12.

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

Let g = 9.8N/kg

a)

5,220,411 J

b)

532,695 J

c)

73.7 J

d)

54,356.6 J

13.

What is the gravitational potential energy of a 26 kg eagle, flying at an altitude of 65 m at a speed of 19 m/s?

Let g = 9.8N/kg

a)

32,110 J

b)

1690 J

c)

172.4 J

d)

16,562 J

14.

An Olympic high jumper, with a mass of 82 kg, has a maximum gravitational potential energy of 1970 J. How high was the jump?

Let g = 9.8N/kg

a)

24 m

b)

161,540 m

c)

2.5 m

d)

201 m

15.

The world record for pole vaulting is 6.15 m. I the pole vaulter’s gravitational potential energy is 4942 J, what is his mass?

Let g = 9.8N/kg

a)

803.6 kg

b)

504.3 kg

c)

30,393.3 kg

d)

82 kg

16.

One of the tallest radio towers is in Fargo, North Dakota. The tower is 629 m tall. If a bird lands on top of the tower, so that the gravitational potential energy associated with the bird is 2033 J, what is its mass?

Let g = 9.8N/kg

a)

1,278,757 kg

b)

12,531,819 kg

c)

3.25 kg

d)

0.330 kg

e)

0.309 kg