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WorksheetsEnergy Transformations
Total questions: 46
Worksheet time: 1hrs 10mins
Name
Class
Date
1.
Which of these represents the law of conservation of energy?
a)
The energy that the sun puts out is more than the energy that we take in on earth
b)
The energy that the can opener takes in is less than the energy that can opener puts out
c)
The amount of energy on earth never changes, it only changes form or goes from one object to another
d)
Energy that we use can be destroyed
2.
A roller coaster going down hill
a)
Potential energy is converted into kinetic energy
b)
Kinetic energy is converted into potential energy
c)
Chemical energy is converted into potential energy
d)
Potential energy is converted into electrical
3.
When gasoline is burned in a car engine, _____________ energy is converted into ______________ energy. (
a)
Heat, chemical
b)
Chemical, potential
c)
Mechanical, mechanical
d)
Chemical, mechanical
4.
Which example involves the transformation of chemical energy directly into light energy?
a)
A wind mill
b)
A glow stick
c)
Photosynthesis
d)
A hydroelectric dam
5.
An electromagnet is made by wrapping a wire around a nail and connecting the wire to both terminals of a battery. It can pick up 6 paper clips. What could you do to increase the number of paper clips the electromagnet picks up?
a)
Make the wire longer
b)
Remove the nail from the center of the wire
c)
Increase the number of loops/coils of wire around the nail
d)
Spread the loops of wire apart on the nail so they do not touch
6.
A generator converts mechanical energy into ____________________ energy.
a)
Chemical
b)
Electrical
c)
Light
d)
Sound
7.
A solar powered car converts ________________ energy into _______________ energy.
a)
Solar, chemical
b)
Solar, mechanical
c)
Mechanical, light
d)
Electrical, mechanical
8.
What form of energy flows through a copper wire connecting two ends of a battery?
a)
Heat energy
b)
Electric energy
c)
Chemical energy
d)
Potential energy
9.
With an electrical circuit that is connected to a light bulb, what would be the energy transformation?
a)
Electrical to radiant
b)
Chemical to sound
c)
Electrical to mechanical
d)
Chemical to electrical
10.
When an electric circuit is connected to a fan, what would the energy transformation be?
a)
Electrical to chemical
b)
Chemical to sound
c)
Electrical to mechanical
d)
Chemical to thermal
11.
Students were instructed to design an electrical circuit that transforms chemical energy to electrical energy to sound energy. Which equipment must be included in the circuit?
a)
Battery, light bulb, switch
b)
Solar panel, doorbell, battery
c)
Portable heater, wire, battery
d)
Battery, wire, buzzer
12.
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
13.
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.
14.
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
15.
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
16.
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
17.
A television works by transforming electrical energy into what other kinds of energy?
a)
Light, thermal, and sound
b)
Thermal, chemical, and solar
c)
Sound, mechanical, and electrical
d)
Light, chemical, and mechanical
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.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
20.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
21.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
22.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
23.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
24.
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
25.
What is energy changing from one form to another?
a)
energy conservation
b)
energy transformation
c)
energy creation
d)
mechanical energy
26.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
27.
Which items would have this energy transformation: chemical energy -> mechanical energy?
a)
person running
b)
candle burning
c)
windmill turning
d)
playing a violin
28.
A hairdryer converts --
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
29.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
30.
"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?
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
31.
Which of the following converts chemical energy to thermal energy?
a)
Battery
b)
Person riding a bike
c)
Automobile
d)
Camp Fire
32.
A student listens to music with a digital music player, similar to the one shown below. Which best describes the energy transformations that take place in the music player?
a)
Mechanical to chemical to electrical
b)
Chemical to sound to electrical
c)
Chemical to electrical to sound
d)
Electrical to heat to sound
33.
An example of electrical energy to heat energy.
a)
using a match to warm liquid
b)
using a hotplate to boil water
c)
growing plants in the window
d)
mixing chemicals to produce heat
34.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
35.
What is energy?
a)
The ability to cause a change
b)
A force
c)
Electricity
d)
The ability to transform work
36.
Any form of energy can change into _____ other form of energy.
a)
any
b)
two
c)
one
d)
uno
37.
A toy robot can walk and talk and runs on batteries. What type of energy is stored in the batteries?
a)
Chemical
b)
Kinetic
c)
Nuclear
d)
Thermal
38.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
39.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
40.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
41.
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
42.
Energy caused by the movement in the particles of matter. It is a form of kinetic energy.
a)
Nuclear energy
b)
Sound energy
c)
Light energy
d)
Thermal energy
43.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
44.
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
45.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
46.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Both the potential energy and kinetic energy increase
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