WorksheetsEnergy Transformations
Total questions: 35
Worksheet time: 21mins
Name
Class
Date
1.
Some students observing a classroom device being used, noticed the below energy transformations.
Electrical → Mechanical → Sound
Which device were the students most likely observing?
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.
2.
Which of these is an example of light energy being transformed into chemical energy?
a)
A glow stick lights up when broken.
b)
Water heated by the sun evaporates.
c)
A plant makes sugar in the sunlight.
d)
A battery causes a buzzer to vibrate.
3.
Which kind of energy change occurs when a candle is burning?
a)
Chemical to light.
b)
Light to electrical.
c)
Solar to heat.
d)
Chemical to electrical.
4.
Which type of energy transformation occurs when a flashlight shines?
a)
chemical → thermal → electrical
b)
chemical → electrical → light
c)
thermal → chemical → light
d)
chemical → electrical → chemical
5.
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
6.
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?
a)
chemical → light → electrical
b)
mechanical → sound → light
c)
thermal → solar → electrical
d)
electrical → thermal → light
7.
Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?
a)
chemical → light → electrical
b)
electrical → light → chemical
c)
light → electrical → chemical
d)
chemical → electrical → light
8.
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 → thermal
b)
light → chemical
c)
thermal → light
d)
chemical → electrical
9.
Which of the following shows the energy transformation that occurs when solar panels are used to heat a building?
a)
light → thermal
b)
chemical → electrical
c)
thermal → chemical
d)
light → mechanical
10.
The picture shows a light bulb attached to a hand generator. What energy transformation occurs as the handle of the generator is turned?
a)
thermal → solar → light
b)
solar → light → electrical
c)
mechanical → electrical → light
d)
electrical → mechanical → light
11.
Which device transforms electrical energy into mechanical energy?
a)
Flashlight
b)
Pencil Sharpener
c)
Lamp
d)
TV
12.
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
13.
The diagram shows a circuit with the bulb glowing. How does the energy change as it moves from inside the battery, along the wires, and through the light bulb?
a)
electrical → light → chemical
b)
light → electrical → chemical
c)
chemical → electrical → light
d)
chemical → light → electrical
14.
Which of the following systems transforms chemical energy to light energy?
a)
Fan
b)
Lamp
c)
Compass
d)
Burning a candle
15.
The Theory of the Conservation of Energy states -
a)
Energy can be created, just not destroyed. It changes its form from one type to another.
b)
Energy can never be created nor destroyed. It can only change its form from one type to another.
c)
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
d)
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
16.
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
17.
What is the energy transformation?
a)
Kinetic to Mechanical to Electrical
b)
Chemical to Mechanical to Kinetic
c)
Electromagnetic to Chemical to Electrical
d)
Kinetic to Sound to Chemical
18.
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
19.
Any form of energy can change into _____ other form of energy.
a)
any
b)
two
c)
one
d)
uno
20.
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
21.
What does the Law of Conservation of Energy state?
a)
That energy is the movement of electrons within an atom.
b)
That energy is a means to an end.
c)
That energy can be created when needed.
d)
That energy cannot be created or destroyed.
22.
The energy transformation that takes place when a flashlight is turned on is...
a)
Chemical - electrical - light
b)
Chemical - light - electrical
c)
Electrical - thermal - light
d)
Nuclear - light - electrical
23.
The form of energy involved in eating a peanut butter and jelly sandwich can be transformed into riding a bike. What types of energy occur in this transformation?
a)
Nuclear - biomechanical
b)
Chemical - mechanical
c)
Potential - kinetic
d)
Electromagnetic - thermal
24.
The form of energy from the sun can be transformed into the energy needed for a tree to grow. What types of energy occur in this transformation?
a)
Electromagnetic - mechanical
b)
Potential - kinetic
c)
Light - chemical
d)
Nuclear - thermal
25.
What energy conversions take place when you vigorously rub your hands together?
a)
friction => heat
b)
chemical => thermal
c)
mechanical => thermal
d)
kinetic => chemical
26.
Which type of energy propels a baseball after it has been struck by a bat?
a)
chemical
b)
thermal
c)
mechanical
d)
nuclear
27.
What is the correct energy chain from the sun to grass to cow?
a)
light and thermal => chemical => chemical
b)
light => heat => mechanical => chemical
c)
light => thermal => mechanical
d)
nuclear => chemical => potential
28.
Muscles operate to push the pedals on a bicycle causing the wheels to turn. What type of energy being represented?
a)
mechanical
b)
physical
c)
thermal
d)
chemical
29.
The sun gives of large amounts of light and ___________ energies?
a)
nuclear
b)
mechanical
c)
chemical
d)
thermal
30.
Strong wind spinning a wind turbine can generate which type of energy?
a)
mechanical
b)
electrical
c)
thermal
d)
chemical
31.
Which type of potential energy is stored in a gasoline?
a)
nuclear
b)
mechanical
c)
chemical
d)
thermal
32.
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
33.
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.
34.
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
35.
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
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