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PE & KE Practice

Total questions: 35

Worksheet time: 33mins

Name
Class
Date
1.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
2.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

3.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

B

4.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

5.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

6.

Which picture is NOT an example of Chemical PE?

a)
b)
c)
d)
7.

What potential energy is this graph representing?

a)

Electric

b)

Elastic

c)

Magnetic

d)

Gravitational

8.

Which piece of evidence BEST represents Chemical PE being released?

a)

a rubber band flung a far distance

b)

an apple falling from a tree

c)

2 magnets repelling

d)

water temperature increasing

9.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

a)

PE = mgh

b)

PE = mg / h

c)

PE = mg + h

d)

PE = gh

10.

What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?

g = 10 m/s2

a)

10 Joules

b)

1.0 Joule

c)

0.10 Joule

d)

11.8 m/s2

11.

Calculate the gravitational potential energy of a 65kg climber on top of Mount Everest (8.8km high).

a)

6864 J

b)

7206 J

c)

5720 J

d)

None of the answers are correct

12.

Calculate the gravitational potential energy of a car with a mass of 1300kg at the top of a .52km high hill.

a)

4862 J

b)

6560 J

c)

6760 J

d)

None of the answers are correct

13.

Calculate the gravitational potential energy of a 0.88kg bird flying at an altitude of 5.50km.

a)

4.74 J

b)

2.80 J

c)

Both answers are correct

d)

None of the answers are correct

14.

A science student holds a 5kg egg out a window. Just before the student releases the egg, the egg has 8.0J of gravitational potential energy with respect to the ground. How far is the students arm from the ground in meters?

a)

.16m

b)

.17m

c)

.08m

d)

.19m

15.

A diver has 3400J of gravitational potential energy after stepping up onto a diving platform that is 6 meters above the water. What is the divers mass in kilograms?

a)

85kg

b)

64kg

c)

57kg

d)

None of the answers are correct

16.
A golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.
a)
2700 J
b)
16.9 J
c)
1350 J
d)
45 J
17.
What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10m/s.
a)
80 J
b)
3.2 J
c)
160 J
d)
40 J
18.
A rabbit of mass 3kg walks at a speed of 0.5m/s. Calculate its kinetic energy.
a)
0.5 J
b)
0.75 J
c)
0.255 J
d)
0.375 J
19.
An explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s
a)
200Kg
b)
20,000Kg
c)
10Kg
d)
200Kg
20.
An 8kg dog chases a cat. if the dog has 400J of kinetic energy. What is the speed of the dog?
a)
10 m/s
b)
5 m/s
c)
1 m/s
d)
100 m/s
21.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
22.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
23.
What is kinetic energy?
a)
energy of work
b)
energy of motion
c)
energy of gravity
d)
energy of power
24.

What two factors affect an object's kinetic energy?

a)

area and volume

b)

mass and weight

c)

weight and height

d)

mass and speed

25.

Where would this tossed baseball have the least amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

26.

Increasing an object's mass will increase its kinetic energy.

a)

true

b)

false

27.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
28.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
29.
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
a)
The kinetic energy decreases as the potential energy increases.
b)
The kinetic energy decreases as the potential energy decreases.
c)
The potential energy decreases as the kinetic energy increases.
d)
The potential energy decreases as the kinetic energy decreases. 
30.
What kind of energy is in a person climbing a ladder?
a)
Potential
b)
Kinetic
c)
Both
31.

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 Joules

b)

22,584 Joules

c)

15 Joules

d)

45,167Joules

32.
Can energy be changed?
a)
yes
b)
no
33.
Can energy be destroyed?
a)
no
b)
yes
34.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
35.

Rank in order, from largest to smallest, the gravitational potential energies of the balls.

a)

1 > 2 = 4 > 3

b)

1 > 2 > 3 > 4

c)

3 > 2 = 4 > 1

d)

3 > 2 > 4 > 1

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