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Energy

Total questions: 50

Worksheet time: 48mins

Name
Class
Date
1.
Photosynthesis
a)
light energy to electrical energy
b)
electromagnetic energy to chemical energy
c)
electrical energy to chemical energy
d)
chemical energy to kinetic energy
2.
Unit for force
a)
J
b)
m/s2
c)
N
d)
kg
3.
Which of the following variables does NOT affect an object's gravitational potential energy?
a)
height
b)
velocity
c)
mass
d)
acceleration due to gravity
4.
Which of the following is NOT a form of electromagnetic radiation?
a)
infrared
b)
gamma
c)
nuclear
d)
ultraviolet
5.

You increase your speed from 3 m/s to 9 m/s, by what factor does your kinetic energy increase? (Think about the KE equation)

a)
3x
b)
6x
c)
9x
d)
it doesn't increase
6.
What is the potential energy of a 3 kg rock that is 2 meters off the ground?
a)
6 J
b)
5 J
c)
60 J
d)
40 J
7.
What are the units for mass?
a)
m
b)
kg
c)
s
d)
N
8.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
9.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
10.
Which energy conversion is taking place when you put gasoline in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
11.
When you eat pizza, Chemical Energy is transferred to _____ Energy.
a)
Solar
b)
Electrical
c)
Mechanical
d)
Chemical
12.
Solar Energy is transferred to _____ Energy.
a)
Mechanical
b)
Solar
c)
Sound
d)
Electrical
13.
Mechanical Energy is transferred to _____ Energy.
a)
Solar
b)
Mechanical
c)
Electrical
d)
Potential
14.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
15.
Electrical -> Mechanical -> Sound 
a)
A triple beam balance measuring an object’s mass
b)
A pencil sharpener plugged into a wall outlet
c)
A projector displaying a diagram on the screen
d)
A working flashlight used to light up a dark corner
16.
Energy you get from eating an apple
a)
nuclear energy
b)
electromagnetic energy
c)
sound energy
d)
chemical energy
17.
Fire is _______ energy. 
a)
radiant
b)
thermal
c)
sound
d)
chemical
18.
Fuel or gasoline is ______ energy. 
a)
nuclear
b)
electrical
c)
chemical
d)
thermal
19.

What kind of energy does this device use?

a)

Chemical

b)

Electrical

c)

Thermal

d)

Mechanical

20.

What kind of energy is represented in the picture?

a)

Thermal

b)

Chemical

c)

Electrical

d)

Radiant

21.

Heat energy is also called

a)

electrical energy

b)

chemical energy

c)

radiant energy

d)

thermal energy

22.

Which statement is true?

a)

Oranges contain Elastic Energy

b)

Food contains Chemical Energy

c)

Phone on the table doesn't contain Gravitational Energy

d)

Radiator contains Nuclear Energy

23.

What type(s) of energy does a fridge contain?

a)

Sound Energy

b)

Thermal Energy

c)

Mechanical Energy

d)

All of the above

24.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
25.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
26.
What is the transformation shown in the picture?
a)
chemical to electrical to light
b)
electrical to chemical to light
c)
light to chemical to electrical
d)
chemical to light to electrical
27.

Objects in motion have ___ energy.

a)

potential

b)

kinetic

28.

Objects at rest have ___ energy.

a)

potential

b)

kinetic

29.

At which position(s) will there be 100% PE and 0% KE?

a)

A

b)

B

c)

C

d)

D

e)

E

30.

At which position(s) will there be 100% PE and 0% KE?

a)

A

b)

B

c)

C

d)

D

e)

E

31.

Mass will be measured using the units ___.

a)

kilograms (kg)

b)

meters per second (m/s)

c)

meters per second squared (m/s2)

d)

meters (m)

32.

Velocity will be measured using the units ___.

a)

kilograms (kg)

b)

meters per second (m/s)

c)

meters per second squared (m/s2)

d)

meters (m)

33.

As kinetic energy increases, potential energy ____.

a)

increases

b)

decreases

c)

stays the same

34.

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 Joule

c)

0.10 Joule

d)

11 m/s2

35.

A 60 kg runner has a speed of 2 m/s. Her kinetic energy is

a)

120 J

b)

175 J

c)

180 J

d)

350 J

36.

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

37.
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 
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 4kg shotput thrown with a velocity of 13m/s

a)

676 J

b)

52 J

c)

17J

d)

338 J

41.
A 60 kg Ewok is travelling at a constant speed of 7 m/s. What is its kinetic energy in KJ?
a)
1.47 KJ
b)
210 KJ
c)
147 KJ
d)
1470 KJ
42.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

43.

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

44.

How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?

a)

Decrease the object's mass

b)

Increase the object's height

c)

Increase the object's mass

d)

Decrease the object's height

45.

What kind of energy is in a rock at the edge of a cliff?

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Both potential and kinetic energy

d)

none of the above

46.

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

47.

What is the value of the Earth's acceleration due to gravity (g)?

a)

9.8 m/s2

b)

100 m/s2

c)

25 m/s2

d)

3.14 m/s2

48.

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

g = 9.8 m/s2

a)

9.8 Joules

b)

1.0 Joule

c)

0.10 Joule

d)

11.8 m/s2

49.

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

50.

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

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