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Energy Physics

Total questions: 60

Worksheet time: 2hrs 6mins

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.

What type of energy is being transformed when you use a hairdryer?

a)

From thermal energy to electrical energy

b)

From electrical energy to kinetic energy

c)

From electrical energy to thermal energy

d)

From kinetic energy to thermal energy

16.

What type of energy is being transformed when you use a flashlight?

a)

From chemical energy to electrical energy

b)

From electrical energy to thermal energy

c)

From chemical energy to light energy

d)

From electrical energy to light energy

17.

What type of energy is being transformed when you use a fan (ventilador)?

a)

From electrical energy to wind energy

b)

From electrical energy to thermal energy

c)

From electrical energy to kinetic energy

d)

From electrical energy to sound energy

18.

The ability to do work (move) is called...

a)

Matter

b)

Energy

c)

Weight

d)

Force

19.

True or false: Energy cannot change from one type to another.

a)

True

b)

False

20.

A plant turns thermal energy from the sun into chemical energy during photosynthesis. This is an example of a(n)...

a)

Energy transformation

b)

Matter transformation

c)

Energy change

d)

Physical Change

21.

Which of the following is an example of thermal energy?

a)

A light bulb

b)

The movement of a car

c)

The digestion of food

d)

Heat from a fire

22.

True or False: Energy can be created.

a)

True

b)

False

23.

Which has more gravitational energy?

a)

A snowboarder at the top of a mountain

b)

A person laying on the beach

24.

Which of the following is NOT a form of energy?

a)

Thermal

b)

Mechanical

c)

Sound

d)

Water

25.

Energy that is stored is called...

a)

Kinetic Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Thermal Energy

26.

Which has the most kinetic energy?

a)

A caught baseball

b)

A turtle swimming

c)

A parked car

27.
When is the potential energy the greatest in a roller coaster?
a)
a. at the bottom of the first hill
b)
b. at the top of the first hill
c)
c. at the top of the second hill
d)
d. at the bottom of the second hill
28.

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

a)

a. thermal energy

b)

b. sound energy

c)

c. electrical energy

d)

d. chemical energy

29.
After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explains this rule?
a)
a. law of energy changes
b)
b. law of conservation of energy
c)
c. law of power and energy
d)
d. law of potential energy
30.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
31.
Which direction will the heat flow while this person holds a hot cup of tea?
a)
from the cup to her hand
b)
from her hand to the cup
c)
no heat is transferred
32.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
33.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
34.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
35.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
36.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
37.
Which has a greater impact on KE?
a)
mass
b)
velocity
38.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
39.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
40.
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
a)
50 J
b)
5 J
c)
250 J
d)
25 J
41.
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
42.
What is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s
a)
112.5 J
b)
7,500,000 J
c)
75 J
d)
7,500 J
43.
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
44.
How much kinetic energy does a person of mass 50kg running at 3m/s have? Provide your answer in KJ.
a)
225 KJ
b)
0.225 KJ
c)
75 KJ
d)
0.075 KJ
45.
A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?
a)
2 m/s
b)
4 m/s
c)
200 m/s
d)
10 m/s
46.
What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?
a)
50 kg
b)
200 kg
c)
25 kg
d)
100 kg
47.
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
48.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
49.

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

a)

W

b)

Y

c)

X

d)

Z

50.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

51.

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

a)

A

b)

G

c)

D

d)

C

e)

G

52.

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

53.

Which picture is NOT an example of Chemical PE?

a)
b)
c)
d)
54.

Potential energy is stored energy. Objects that are higher up have more potential energy than objects that are lower (if both objects have the same mass). If two objects have different masses, the more massive objects has more potential energy (if they are are at the same height).

a)

I don't get it.

b)

GOT IT!

55.

Potential energy is...

a)

energy in motion

b)

stored energy

56.

What two factors affect an object's potential energy?

a)

area and volume

b)

area and height

c)

mass and height

d)

mass and velocity

57.

Where would a person have to be located to have the minimum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

58.

Where would a person have to be located to have the maximum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

59.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
60.

Which object will have the largest value for its potential energy?

a)
b)
c)
d)

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