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Energy Review

Total questions: 64

Worksheet time: 2hrs 35mins

Name
Class
Date
1.
A girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy? 
a)
300 Joules
b)
600 Joules
c)
950 Joules
d)
4500 Joules
2.
Calculate the potential energy of a roller coaster at the top of a 72 m hill that has a mass of 112 kg.
a)
79,027 J
b)
790,720 J
c)
7,020 J
d)
790,700 J
3.
At what position does the pendulum have the greatest gravitational potential energy?
a)
Position D
b)
Position C
c)
Position B
4.
At what position does the pendulum have the greatest kinetic energy?
a)
Position D
b)
Position C
c)
Position B
5.
Which character has the greatest gravitational potential energy?
a)
Character A
b)
Character B
c)
Character C
d)
Character D
6.
Which skier has the greatest kinetic energy?
a)
Skier A
b)
Skier B
c)
Skier C
d)
Skier D
7.
Calculate the kinetic energy of a 2 kg rock that rolls down the hill with a velocity of 8 m/s.
a)
64 Joules
b)
16 Joules
c)
128 Joules
d)
8 Joules
8.
Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.
a)
4,386,250 J
b)
159,500 J
c)
79,750 J
d)
8,772,500
9.
Barry Bonds swings a bat which has a mass of 1.5 kg at a velocity of 55 m/s. How many joules of kinetic energy could he give to a baseball?
a)
2269 Joules
b)
83 Joules
c)
41 Joules
d)
4 Joules
10.
Calculate the kinetic energy of a car which has a mass of 1000 kg and is moving at the rate of 20 m/s.
a)
200,000 Joules
b)
20,000 Joules
c)
10,000 Joules
d)
40,000 Joules
11.
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
a)
14,553 Joules
b)
1,485 Joules
c)
2 Joules
d)
743 Joules
12.
A cinder block is sitting on a platform 20 m high. It has a mass of 8 kg. Calculate the potential energy of the cinder block.
a)
1,568 Joules
b)
160 Joules
c)
3 Joules
d)
28 Joules
13.
There is a bell at the top of a tower that is 45 m high. The bell has a mass of 20 kg. Calculate the potential energy of the bell. 
a)
8,820 Joules
b)
900 Joules
c)
2 Joules
d)
65 Joules
14.
A 20 kg object is at a height of 20 meters. Calculate the potential energy of the object.
a)
3,920 Joules
b)
400 Joules
c)
40 Joules
d)
20 Joules
15.
Energy in motion is called:
a)
Potential Energy
b)
Kinetic Energy
16.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
17.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
18.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

same

19.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
20.

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

21.

What is the unit for mass?

a)

kilogram (kg)

b)

meter (m)

c)

Newton (N)

d)

Joule (J)

22.

What is the unit for distance?

a)

kilogram (kg)

b)

meter (m)

c)

Newton (N)

d)

Joule (J)

23.

What is the unit for force?

a)

kilogram (kg)

b)

meter (m)

c)

Newton (N)

d)

Joule (J)

24.

A 2kg television falls from 1 meter. How much energy does it have?

a)

19.6 J

b)

196 J

c)

2 J

d)

9.8J

25.

Units for Energy are

a)
netwons
b)
joules
c)
meters
d)
seconds
26.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
27.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
28.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
29.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
30.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
31.
Wind turbines and windmills convert what energy to another?
a)
Kinetic to electric
b)
Gravitational potential to electric
c)
Mechanical to potential
d)
Thermal to sound
32.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
33.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
34.
There is the same amount of energy today as when the world began.
 
a)
True
b)
False
35.

Energy used to heat a frying pan would be which of the following?

a)

Nuclear Energy

b)

Thermal Energy

c)

Mechanical Energy

d)

Kinetic Energy

36.

A roller coaster going down a hill is seeing a drop in ________ energy and a gain in _________ energy.

a)

Mechanical / Thermal

b)

Kinetic / Potential

c)

Potential / Kinetic

d)

Electrical / Sound

37.

Which is the type of energy used when burning gasoline?

a)

Magnetic

b)

Electrical

c)

Nuclear

d)

Chemical

38.

A student walks into a classroom and turns on the light switch which causes the light bulb to turn on. The bulb turns ______ energy into ______ energy

a)

Magnetic / Thermal

b)

Light / Electrical

c)

Eletrical / Light

d)

Light / Thermal

39.

What term fits the following statement? Energy cannot be created or destroyed.

a)

Law of Conservation of energy

b)

Newton's Second Law

c)

Law of conservation of momentum

d)

Law of conservation of motion

40.

Batteries convert _________ energy to ___________ energy

a)

Electrical / Chemical

b)

Chemical / Nuclear

c)

Electrical / Magnetic

d)

Chemical / Electrical

41.

Which two points on the Newton's Cradle Demonstrate the most potential energy?

a)

1 and 3

b)

2 and 4

c)

1 and 5

d)

3 and 5

42.

Which point on the Newton's Cradle demonstrates the most kinetic energy?

a)

1

b)

2

c)

3

d)

4

e)

5

43.

The chemical energy of a battery is converted to heat and light energy in a flashlight. Which of the following best explains the CONSERVATION of energy

a)

The switch of the flashlight allows energy to flow

b)

the heat and light energy are equal to chemical energy

c)

the wires carry electrical energy from the battery to the bulb

d)

after hours of use, the batteries will lose their energy

44.

Thermal energy __________ the motion of molecules in a system

a)

Increases

b)

Decreases

c)

Stops

45.

What type of energy conversion occurs in a desktop fan?

a)

Electrical to Light

b)

Light to Electrical

c)

Electrical to Mechanical

d)

Mechanical to Heat

46.

Which of these examples best shows a change from potential to kinetic energy?

a)

Water flowing over a tall cliff

b)

A metal spring being stretched out

c)

Electricity making a bulb light up

d)

A stone lying on top of a mountain

47.
Energy stored in the bonds between atoms
a)
chemical energy
b)
mechanical energy
c)
kinetic energy
d)
nuclear energy
48.
Energy stored in an atom's nucleus
a)
chemical energy
b)
mechanical energy
c)
kinetic energy
d)
nuclear energy
49.
Energy stored in a flexed or compressed object
a)
gravitational potential energy
b)
mechanical energy
c)
kinetic energy
d)
elastic potential energy
50.
Energy of motion
a)
gravitational potential energy
b)
mechanical energy
c)
kinetic energy
d)
elastic potential energy
51.
Potential energy due to gravity
a)
gravitational potential energy
b)
mechanical energy
c)
kinetic energy
d)
elastic potential energy
52.
Energy in the form of waves that can move through space
a)
gravitational potential energy
b)
electromagnetic energy
c)
sound energy
d)
elastic potential energy
53.
Energy in the form of waves that move through a medium like air or water
a)
gravitational potential energy
b)
electromagnetic energy
c)
sound energy
d)
elastic potential energy
54.
Energy of moving electrons
a)
electrical energy
b)
electromagnetic energy
c)
sound energy
d)
mechanical energy
55.
Energy of vibrating particles
a)
electrical energy
b)
thermal energy
c)
sound energy
d)
mechanical energy
56.
Kinetic energy + potential energy
a)
electrical energy
b)
thermal energy
c)
sound energy
d)
mechanical energy
57.
Stored energy
a)
electrical energy
b)
kinetic energy
c)
potential energy
d)
mechanical energy
58.

The ability to do work or change

a)
energy
b)
kinetic energy
c)
potential energy
d)
mechanical energy
59.
How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
60.
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
61.
At which point is kinetic energy greatest? 
a)
W
b)
X
c)
Y
d)
Z
62.
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. 
d)
leaves rolling down a hill 
63.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
64.

How much KE is there at point B?

a)

80,000 J

b)

0 J

c)

20,000 J

d)

25,000 J