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Energy

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
a)
Law of Conservation of Mass
b)
Newton's Second Law
c)
Law of Conservation of Energy
d)
Newton's Third Law
2.
A girl turned the light off and went to bed.  She remembered she had accidentally left her glass of ice water on the counter.  When she got up the next morning, the ice had melted. What form of energy caused the ice to melt?
a)
Sound energy
b)
Light energy
c)
Thermal energy
d)
Mechanical energy
3.

As an object falls, what happens to its kinetic energy?

a)

Increases

b)

Decreases

c)

Stays the same.

d)

Need more information

4.

What is the unit of energy

a)

N

b)

kg

c)

J

d)

W

5.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
6.
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 
7.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
8.
a.  Energy stored in the nucleus of an atom.
a)
A. Sound Energy
b)
B. Potential Energy
c)
C. Nuclear Energy
d)
D. Thermal energy
9.

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

10.

Energy which is transferred by charges moving due to a potential difference (voltage)

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

11.

Energy which is transferred by a force moving an object through a distance

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

12.

Energy which is transferred as a wave, for example light.

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

13.

Energy which is transferred due to temperature difference caused electrically or by a chemical reaction.

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

14.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
15.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
16.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
17.
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
18.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

19.

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

a)

A

b)

G

c)

D

d)

C

e)

G

20.

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

a)

height and mass

b)

friction and movement

c)

mass and movement

d)

height and friction

21.

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

22.

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

23.

A stretched rubber band represents what type of potential energy?

a)

gravitational potential energy

b)

elastic potential energy

c)

chemical potential energy

d)

kinetic potential energy

24.

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

25.

Which object has elastic potential energy?

a)

a hanging leaf

b)

a burning coal

c)

a rolling ball

d)

a stretched bow

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