WorksheetsEnergy and Energy Transformations
Total questions: 16
Worksheet time: 13mins
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.
What energy transformations take place when a battery-operated radio is in use?
a)
Electrical to chemical to light
b)
Sound to chemical to mechanical
c)
Chemical to electrical to sound
d)
Light to electrical to thermal
3.
Which of the following devices transforms electrical energy into mechanical energy?
a)
An e-reader
b)
a fan
c)
a manual pencil sharpener
d)
ipod
4.
Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?
a)
chemical to mechanical to electrical to radiant
b)
radiant to electrical to sound
c)
chemical to radiant to mechanical to electrical
d)
electric to radiant to chemical
5.
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
6.
Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp?
a)
radiant
b)
light
c)
heat
d)
chemical
7.
Which of the following energy transfers occurs when food is digested?
a)
chemical to mechanical
b)
radiant to nuclear
c)
mechanical to potential
d)
thermal to chemical
8.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
9.
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
10.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
11.
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
12.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
13.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
14.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
15.
A swing has potential energy if _____________.
a)
it is in motion
b)
it is swinging backward
c)
it is sitting still
d)
it is spinning
16.
What energy transformation occurs as howler monkeys loudly call to each other in the forest?
a)
Chemical --> Mechanical --> Sound
b)
Chemical --> Sound --> Thermal
c)
Sound --> Chemical --> Radiant
d)
Mechanical --> Chemical --> Sound
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