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Energy Test Review

Total questions: 72

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

The ability to do work or cause change

a)

energy transfer

b)

energy transformation

c)

energy

d)

kinetic energy

2.

Moving energy from one place to another

a)

energy transfer

b)

energy transformation

c)

kinetic energy

d)

potential energy

3.

To change from one type of energy to another

a)

energy transfer

b)

energy transformation

c)

kinetic energy

d)

potential energy

4.

Stored energy in an object

a)

energy transfer

b)

energy transformation

c)

kinetic energy

d)

potential energy

5.

The energy of a moving object

a)

energy transfer

b)

energy transformation

c)

kinetic energy

d)

potential energy

6.

Energy of vibration; energy that can be heard

a)

sound energy

b)

light energy

c)

electrical energy

d)

thermal energy

7.

Energy that is a result of movement of electrically charged particles

a)

sound energy

b)

light energy

c)

electrical energy

d)

thermal energy

8.

heat energy; when molecules rub against one another, causing friction.

a)

sound energy

b)

light energy

c)

electrical energy

d)

thermal energy

9.

Which of these transforms electrical current to heat energy?

a)

A toaster

b)

A Campfire

c)

A Baseball bat

d)

The sun

10.

Lamar plugs a lamp into a wall. Electricity goes from the outlet through the cord and to the lightbulb. How is the energy transformed?

a)

Electrical energy to light and heat energy

b)

Light and heat energy to electrical energy

c)

Electrical energy to solar energy

d)

Heat energy to solar and light energy

11.

Emily dropped a marble on a wood floor. It made a loud noise. Why did this happen?

a)

The marble’s energy transformed into electrical energy, causing the loud noise.

b)

The marble lost momentum as it fell to the floor. The change in momentum caused the noise.

c)

Some of the marble’s energy of motion was transformed to sound energy when the marble collided with the floor.

d)

All of the marble’s energy of motion was transformed to sound energy when the marble collided with the floor.

12.

What is the type of energy that called the energy of motion?

a)

Mechanical Energy

b)

Electrical Energy

c)

Light Energy

d)

Thermal ENergy

13.

What form of energy can travel through space and gives us the ability to see objects?

a)

Thermal Energy

b)

Mechanical Energy

c)

Light Energy

d)

Sound Energy

14.

Identify the energy transfer

a)

electrical to chemical to light

b)

kinetic to potential

c)

chemical to electrical to light

d)

light to sound

15.

Identify the energy transfer

a)

mechanical to sound

b)

chemical to electrical

c)

sound to mechanical

d)

thermal to sound

16.

Identify the energy transfer

a)

chemical to kinetic

b)

solar to electrical

c)

thermal to light

d)

electrical to light

17.

Identify the energy transfer

a)

light to electrical to chemical

b)

chemical to electrical to light

c)

electrical to chemical to light

d)

chemical to electrical to solar

18.

Identify the energy transfer

a)

chemical to light

b)

thermal to electrical

c)

chemical to heat

d)

electrical to thermal

19.

Plants need the sun for _____________________ energy.

a)

Light / Radiant

b)

Sound

c)

Chemical

d)

Electrical

20.

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

a)

thermal to electrical

b)

mechanical to thermal

c)

electrical to thermal

d)

electrical to sound

21.

What type of energy transformation happens in hydro-electric power?

a)

kinetic to potential

b)

sound to mechanical

c)

chemical to electrical

d)

mechanical to electrical

22.

What type of energy is stored in batteries or food?

a)

Potential energy

b)

Thermal energy

c)

Chemical energy

d)

Mechanical energy

23.
According to the Law of Conservation of Energy...
a)
energy changes form
b)
energy can be created and destroyed
c)
energy flows from one material to the next
d)
energy cannot be created or destroyed
24.

What energy transformation occurs when an alarm clock rings?

a)

electrical to mechanical, sound

b)

chemical to mechanical,sound

c)

electrical to thermal, chemical

d)

mechanical to mechanical, thermal, sound

25.

What are the energy transformations that occur when a person rides a bike to the top of a hill?

a)

mechanical, thermal,

b)

chemical, mechanical, thermal, electrical

c)

chemical, mechanical, thermal, electrical, radiant

d)

chemical, mechanical, thermal

26.

List the energy transformations of this object.

a)

Electrical → Mechanical/ Radiant Energy

b)

Electrical → Mechanical / Sound / Thermal Energy

c)

Mechanical → Chemical / Thermal energy

d)

Mechanical→ Electrical energy

27.
Which items would have this energy transformation: chemical energy -> mechanical energy?
a)
person running
b)
candle burning
c)
windmill turning
d)
playing a violin
28.

The glow sticks produce light for a short amount of time. The light from the glow stick is from ____________.

a)

heat energy

b)

gravity

c)

magnetism

d)

chemical energy

29.

Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.

a)

250,000 J

b)

2,450,000 J

c)

2,451,663 J

d)

248 J

30.

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs?

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

31.

Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball?

a)

567 J

b)

900 J

c)

945 J

d)

30 J

32.

Ty lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?

a)

12,789 Joules

b)

24,500 Joules

c)

4,500 Joules

33.
a)
W
b)
X
c)
Y
d)
Z
34.
Which point has the most potential energy?
a)
G
b)
f
c)
b
d)
a
35.

A 5 Kg body is having a Kinetic energy of 250 J. What is the velocity of the body?

a)

10 m/s

b)

15 m/s

c)

20 m/s

d)

40 m/s

36.

What is the mass of a ball that has a kinetic energy of 115 J and is traveling at 9 m/s?

a)

1035 kg

b)

23.5 kg

c)

12.8 kg

d)

2.84 kg

37.

A exercise ball is on a table 2.5 m above the ground. What is the mass of the ball if it has a GPE of 56.8 J?

a)

71 kg

b)

22.72 kg

c)

142 kg

d)

2.32 kg

38.

Is it possible for an object to have no potential energy and have no kinetic energy?

a)

no

b)

yes

c)

not if it is on the planet earth

39.

What is the Total Energy of the system?

a)

14 J

b)

12 J

c)

6 J

d)

8 J

40.

What is the Total Mechanical Energy at point A?

a)

500,000 J

b)

400,000 J

c)

200,000 J

d)

50,000 J

41.

What is the Kinetic Energy at point B?

a)

500,000 J

b)

400,000 J

c)

300,000 J

d)

50,000 J

42.

What is the Kinetic Energy at point C?

a)

500,000 J

b)

400,000 J

c)

300,000 J

d)

50,000 J

43.

What is the Kinetic Energy at point D?

a)

500,000 J

b)

250,000 J

c)

300,000 J

d)

50,000 J

44.

What is the GPE at point E?

a)

500,000 J

b)

250,000 J

c)

300,000 J

d)

100,000 J

45.

What is the Total Energy at the top?

a)

15,000 J

b)

3,750 J

c)

7,500 J

d)

11,250 J

46.

What is the KE 1/2 of the way down?

a)

15,000 J

b)

3,750 J

c)

7,500 J

d)

11,250 J

47.

What is the GPE at the top?

a)

50 J

b)

25 J

c)

0 J

d)

100 J

48.

What is the Total Energy at the bottom?

a)

50 J

b)

25 J

c)

0 J

d)

100 J

49.

When you put on the brakes of a bicycle, friction causes some of the mechanical energy to transfer to thermal energy.

a)

True

b)

False

50.

In every energy transformation, some energy is always “lost” as ____ energy.

a)

Chemical

b)

Radiant

c)

Electrical

d)

Thermal

51.

According to the law of conservation of energy, energy can be created or destroyed.

a)

True

b)

False

52.

According to the law of conservation of energy, the total amount of energy in the universe ____.

a)

remains constant

b)

changes constantly

c)

increases

d)

decreases

53.
Work divided by time equals...
a)
energy
b)
power
54.
The unit of work is the ...
a)
joule
b)
force
55.
The unit of power is the...
a)
work
b)
watt
56.
Force multiplied by distance equals...
a)
work
b)
power
57.
Work is done on an object when the object moves in the SAME direction in which the force is applied.
a)
True
b)
False
58.
The FARTHER you move an object, the more work you do.
a)
True
b)
False
59.
Power is the RATE at which work is done. 
a)
True
b)
False
60.
45,000 Joules of work done in 90 seconds results in how much power?
a)
50 watts
b)
500 watts
c)
5000 watts
d)
4,050,000 watts
61.
800 Newtons of force moving a distance of 20 meters will be how much work done?
a)
40 J
b)
1,600 J
c)
400 J
d)
16,000 J
62.
A person performs 1,500,000 J of work while walking.  The person has a weight of 750 N.  How far did the person walk?
a)
20 m
b)
200 m
c)
2000 m
d)
20,000 m
63.
If someone does 70,000 J of work with a power of 14,000 watts, what is the amount of time it was done in?
a)
5 seconds
b)
50 seconds
c)
0.200 seconds
d)
980,000,000 seconds
64.
Which is doing work?
a)
pushing a wall
b)
holding a box
c)
picking up a pencil
d)
sitting in a chair
65.
P=25 watts 
W=5000 Joules 
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
66.
A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds.  How much power was used?
a)
360 W 
b)
60 W
c)
3600 W
d)
600 W
67.
If a new fork lift can do four times the amount of work in the same amount of time of an old forklift, then the new forklift is...
a)
Twice as powerful
b)
Four time as powerful
c)
Sixteen times the power
d)
of equal power of the old forklift
68.
You lift a 500 N weight in 3 s. Your partner lifts a 500 N weight in 5 s. Who has more power?
a)
You do! You did it in less time!
b)
You do! You lifted more weight!
c)
Your partner! He / she lifted more weight!
d)
You both had the same power!
69.

What situation describes the initial (i) and final (f) state shown by the energy bar graph.

a)

A phone falls from a table (i) to the floor (f)

b)

A ball is thrown straight up (i) into the air (f)

c)

A car driving on a flat road (i) accelerates (f)

70.

Which description of motion matches this bar chart?

a)

The driver of a car slows down on a level roadway

b)

A golf ball rolls up a hill and comes to a stop

c)

A skydive falls at constant speed

d)

A girl on a sled starts at rest on a hill then slides down

71.

Which description of motion matches the bar chart?

a)

A driver hits the breaks to slow down to the speed limit

b)

A car is moving along a level roadway at constant speed

c)

A skydiver fall to the ground at constant speed

d)

A baseball player slides into second base and comes to a stop

72.

An energy bar chart is posted above. Which of the following scenarios could represent the cart?

a)

A car driving up at hill at constant velocity

b)

A skydiver falling to the ground at constant velocity after opening their parachute

c)

A ball rolling down a ramp

d)

A car applying their brakes on a level surface and coming to a stop