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ENERGY TRANSFORMATIONS AND PE/KE

Total questions: 39

Worksheet time: 3hrs 15mins

Name
Class
Date
1.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
2.
Which of the following shows an energy transformation from chemical energy to electrical to light energy?
a)
A bolt of lightning lights the night sky.
b)
A candle glows brightly in the dark.
c)
A fire in a fireplace lights up a room.
d)
A battery causes a flashlight to shine.
3.
People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?
a)
mechanical to thermal to electrical
b)
chemical to mechanical to thermal
c)
mechanical to chemical to sound
d)
chemical to sound to electrical
4.

Which of the following devices transforms electrical energy into mechanical energy?

a)

An oven

b)

a fan

c)

a hand held pencil sharpener

d)

ipod

5.

A television works by transforming electrical energy into what other kinds of energy?

a)

Light and and sound

b)

Thermal and chemical

c)

Sound, mechanical, and electrical

d)

Light, chemical, and mechanical

6.
Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?
a)
chemical to thermal
b)
light to chemical
c)
thermal to light
d)
chemical to electrical
7.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
8.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
9.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
10.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
11.
Wind turbines and windmills convert what energy to another?
a)
Kinetic to electric
b)
Gravitational potential to electric
c)
Mechanical to potential
d)
Thermal to sound
12.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
13.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
14.
Energy that comes from the nucleus of an atom. A form of potential energy.
a)
chemical energy
b)
Nuclear energy
c)
Sound energy
d)
Electrical energy
15.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
16.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
17.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
18.

Which energy conversion is taking place when you put gasoline in a car then drive to school?

a)

thermal -> electrical

b)

mechanical -> electrical

c)

chemical -> mechanical

d)

mechanical -> electromagnetic

19.

The picture showing the energy conversion

Chemical → heat

is:

a)
b)
c)
d)
20.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
21.
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 
22.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
23.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
24.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
25.
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 
26.
What kind of energy is in a person climbing a ladder?
a)
Potential
b)
Kinetic
c)
Both
27.

When a pendulum swings, at which point is kinetic energy highest?

a)

1 and 5

b)

2

c)

3

d)

4

28.

When a pendulum swings, at which point is potential energy at its greatest?

a)

1 and 5

b)

2

c)

3

d)

4

29.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
30.
What is the unit of measurement for kinetic energy
a)
Newton
b)
Joule
c)
Watt
d)
Kilogram
31.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
d)
leaves rolling down a hill 
32.

Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.

a)

a ball rolling down a bowling lane

b)

a picture hanging on the wall

c)

a swing swaying back and forth

d)

a coat hanging on a hook

33.

Maximum gravitational potential energy (choose all that apply)

a)

A

b)

B

c)

C

d)

D

34.

Maximum kinetic energy

a)

A

b)

B

c)

C

d)

D

35.

Minimum kinetic energy (choose all that apply)

a)

A

b)

B

c)

C

d)

D

36.

Minimum gravitational potential energy

a)

A

b)

B

c)

C

d)

D

37.

At which point will potential energy and kinetic energy be equal?

a)

1 and 5

b)

2 and 4

c)

3 only

d)

2 only

38.

The girl drops the ball from a height of 10 meters. At what height will PE = KE?

a)

5 meters

b)

10 meters

c)

0 meters

d)

1 meter

39.

The roller coaster is traveling from right to left. What is wrong with this roller coaster?

a)

Nothing, it looks fun.

b)

The first hill has too much potential energy.

c)

It will not have enough kinetic energy to get up the second hill.

d)

It needs a loop to work.

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