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Unit 8 Energy

Total questions: 25

Worksheet time: 18mins

Name
Class
Date
1.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
2.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
3.
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 
4.
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 
5.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
6.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
7.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
8.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
9.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
10.
At which point is kinetic energy greatest? 
a)
W
b)
X
c)
Y
d)
Z
11.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
12.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
13.
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
a)
The kinetic energy decreases as the potential energy increases.
b)
The kinetic energy decreases as the potential energy decreases.
c)
The potential energy decreases as the kinetic energy increases.
d)
The potential energy decreases as the kinetic energy decreases. 
14.
When riding a roller coaster, you go up and down many hills. As you get to the top of a roller coaster, what energy change is taking place.
a)
Potential energy is changed into kinetic energy.
b)
Kinetic energy is changed into potential energy.
c)
Chemical energy is changed into heat energy.
d)
Heat energy is changed into chemical energy. 
15.
When riding a roller coaster, you go up and down many hills. When do you have the maximum (most) kinetic energy?
a)
At the top of each hill.
b)
As you go down each hill.
c)
At the bottom of each hill.
d)
As you go up each hill.
16.
Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?
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.
17.
When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?
a)
electrical → light → mechanical
b)
chemical → mechanical → electrical
c)
mechanical → chemical → light
d)
mechanical → electrical → light
18.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
Solar
b)
Light
c)
Thermal
d)
Mechanical
19.

Which of the following describes the energy transformation occurring when a match is lit?

a)

The chemical energy stored in the match changed to thermal energy and light energy.

b)

The thermal energy stored in the match changed to light energy and chemical energy.

c)

The light energy and thermal energy stored in the match changed to mechanical energy.

d)

The light energy and thermal energy stored in the match changed to chemical energy.

20.

What energy transformation occurs when a stove uses natural gas?

a)

Some of the chemical energy in the natural gas transforms into thermal energy.

b)

Some of the thermal energy in the natural gas transforms into sound energy.

c)

Some of the electrical energy in the natural gas transforms into thermal energy.

d)

Some of the light energy in the natural gas transforms into chemical energy.

21.

Two objects traveling at the same speed would have the same kinetic energy.

a)

True

b)

False

22.

What energy transformations occur when propane gas is used to lift the balloon?

a)

Mechanical to light to chemical

b)

Chemical to mechanical to thermal

c)

Thermal to chemical to light

d)

Chemical to thermal to mechanical

23.

Which of the following is an example of kinetic energy?

a)

a vase sitting on a table

b)

sound

c)

a plate of hot food

d)

a parked car

24.

What are the energy transformations for a flashlight?

a)

chemical to electrical to light

b)

electrical to mechanical to sound

c)

sound to nuclear to light

d)

gravitational to kinetic to electrical

25.

Which one would be an example of potential energy

a)

pencil on a desk

b)

person running a marathon

c)

music playing on a speaker

d)

the Sun

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