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WorksheetsEnergy Transformations
Total questions: 52
Worksheet time: 39mins
Name
Class
Date
1.
Which items would have this energy transformation: chemical energy -> mechanical energy?
a)
person running
b)
candle burning
c)
windmill turning
d)
playing a violin
2.
Which items would have this energy transformation: chemical energy -> thermal and light energy?
a)
tanning bed
b)
candle burning
c)
windmill turning
d)
solar calcultor
3.
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
4.
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
5.
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
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 energy transformation occurs when an alarm clock rings?
a)
electrical to mechanical, sound
b)
chemical to mechanical,sound
c)
electrical to thermal, chemical
d)
mechanical to mechanical, thermal, sound
15.
Is the energy in a battery, chemical or electrical (Not connected to any devices)?
a)
electrical
b)
neither
c)
chemical
d)
both
16.
List the energy transformations of this object.
a)
Electrical → Mechanical/ Radiant Energy
b)
Electrical → Mechanical / Sound / Thermal Energy
c)
Mechanical → Chemical / Thermal energy
d)
Mechanical→ Electrical energy
17.
What energy transformations does fire have?
a)
Thermal→ Sound Energy
b)
Thermal→ Radiant energy
c)
Chemical → Thermal energy
d)
Chemical→ Sound energy
18.
What is the unit for kinetic and potential energy?
a)
Meters
b)
Kilograms
c)
Watts
d)
Joules
19.
A 4 kg ball sits at the top of a ramp 5m high. Find the PE of the ball at the bottom of the ramp.
a)
200 Watts
b)
50 Joules
c)
50 m/s
d)
200 Joules
20.
What energy transformations occur when a human eats a Big Mac?
a)
Convection
b)
Thermal Energy
c)
Kinetic Energy
d)
Chemical Energy
21.
What is the energy transformation?
a)
Kinetic to Mechanical to Electrical
b)
Kinetic to Mechanical to Kinetic
c)
Electromagnetic to Mechanical to Electrical
d)
Kinetic to Sound to Electrical
22.
What is the energy transformation?
a)
Kinetic to Mechanical and Electrical
b)
Chemical to Thermal and Electromagnetic (light)
c)
Electromagnetic to Chemical and Electrical
d)
Kinetic to Sound and Chemical
23.
What is the energy transformation?
a)
Kinetic to Mechanical to Electrical
b)
Mechanical to Electrical to Kinesthetic
c)
Electromagnetic to Chemical to Electrical
d)
Kinetic to Sound to Chemical
24.
What is the energy transformation?
a)
Electrical to Electromagnetic
b)
Mechanical to Electrical
c)
Electrical to Thermal
d)
Kinetic to Sound
25.
What is the energy transformation?
a)
Electromagnetic to Electrical
b)
Mechanical to Electrical
c)
Electrical to Thermal
d)
Kinetic to Sound
26.
What is the energy transformation?
a)
Nuclear to Electrical
b)
Mechanical to Electrical
c)
Electrical to Thermal
d)
Kinetic to Sound
27.
What is the energy transformation?
a)
Mechanical to Kinetic to Sound
b)
Mechanical to Electrical to Light
c)
Electrical to Thermal to Mechanical
d)
Kinetic to Sound to Potential
28.
What is the energy transformation?
a)
Potential to Kinetic
b)
Kinetic to Potential
c)
Electrical to Kinetic
d)
Kinetic to Electromagnetic
29.
Which energy conversion best explains what takes place in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
30.
Which energy transformation best describes what happens in an oven?
a)
Electrical ->Thermal
b)
Electrical -> Radiant
c)
Electrical -> Mechanical
d)
Electrical -> Chemical
31.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
32.
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
33.
The purpose of solar panels is to change ___________ energy into ____________.
a)
light, electrical
b)
light, chemical
c)
thermal, electrical
d)
thermal, chemical
34.
Which answer would best fit this energy transformation:
chemical energy -> electrical, light and thermal energy
chemical energy -> electrical, light and thermal energy
a)
turning on a flashlight
b)
nuclear power plant
c)
digesting an apple
d)
tanning bed
35.
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. 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
36.
A hairdryer converts --
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
37.
Which object changes:
chemical energy -> heat, light and sound
chemical energy -> heat, light and sound
a)
blender
b)
firecracker
c)
light bulb
d)
apple
38.
Wind turbines and windmills convert what energy to another?
a)
Mechanical to electric
b)
Gravitational potential to electric
c)
Mechanical to thermal
d)
Thermal to sound
39.
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
40.
A toy robot can walk and talk and runs on batteries. Which energy transformation best describes this?
a)
Chemical ->mechanical, sound
b)
Electrical -> mechanical, sound
c)
Chemical -> kinetic, electrical
d)
Electrical -> kinetic, sound
41.
When a hand-held fan (operated by batteries) is turned on, the blades spin. Which shows the energy conversion required to make the fan work?
a)
Electrical -> Chemical -> Radiant
b)
Electrical -> Chemical -> Mechanical
c)
Chemical -> Electrical -> Light
d)
Chemical -> Electrical -> Mechanical
42.
What energy transformation best describes a cell phone ringing?
a)
Chemical -> Electrical -> Sound
b)
Chemical -> Electrical -> Radiant
c)
Electrical -> Radiant-> Sound
d)
Electrical ->Nuclear -> Radiant
43.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
44.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
45.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
46.
The picture showing the energy conversion
Light → chemical
is:
a)
b)
c)
d)
47.
What two major energy transformations occur in this image?
a)
Nuclear to Mechanical
b)
Nuclear to Thermal
c)
Nuclear to Electrical
d)
Chemical to Mechanical
48.
What Object transfers Electrical to Thermal?
a)
Fan
b)
Battery
c)
Tennis Ball
d)
Heater
49.
What object transfers mechanical energy to electric energy?
a)
Bike
b)
Hydroelectric Plant
c)
Tap Water
d)
Toaster
50.
Nuclear energy uses _____ to turn turbines to power a generator.
a)
wind
b)
water
c)
steam
d)
solar
51.
Splitting a uranium atom is called -
a)
fission
b)
fusion
52.
Energy is stored in the ___ of an atom.
a)
proton
b)
neutron
c)
electron cloud
d)
nucleus
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