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WorksheetsCh 3 Study Guide
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
When Jamal plays the trumpet, mechanical energy is converted into _____ energy.
a)
kinetic
b)
sound
c)
mechanical
d)
chemical
2.
As a yo-yo moves down and up its string, potential energy changes into ___ energy and then back again to potential energy.
a)
sound
b)
kinetic
c)
mechanical
d)
chemical
3.
For chemical energy to be used for some purpose, it must be converted into a different ____ of energy.
a)
efficiency
b)
conservation
c)
form
d)
chemical
4.
The law of ____ of energy states that energy can neither by created nor destroyed.
a)
kinetic
b)
form
c)
electromagnetic
d)
conservation
5.
An electrical generator can use falling water to convert ______ energy into electrical energy.
a)
chemical
b)
sound
c)
electromagnetic
d)
mechanical
6.
An apple tree converts _____ energy from the Sun into chemical energy.
a)
electromagnetic
b)
chemical
c)
sound
d)
kinetic
7.
Some electrical energy entering a vacuum cleaner is converted to heat and sound. The percentage of energy used for cleaning carpets is the vacuum's energy ______.
a)
form
b)
sound
c)
efficiency
d)
conservation
8.
Electromagnetic and nuclear are two forms of ____, which is the ability to cause a change.
a)
energy
b)
sound
c)
mass
d)
kinetic
9.
The energy from the movement of individual particles in matter is called ______ energy.
a)
sound
b)
potential
c)
thermal
d)
sound
10.
Music travels through the air in the form of ______ energy.
a)
mechanical
b)
sound
c)
thermal
d)
chemical
11.
The kinetic energy of a moving train depends on the train's _____ and speed.
a)
kinetic
b)
potential
c)
weight
d)
mass
12.
Paul stands 5 meters about a pool, preparing to dive. He has potential energy because of his position and the force of _____.
a)
mass
b)
speed
c)
gravity
d)
weight
13.
Linda eats breakfast before going to her track meet. The _____ form of potential energy stored in the food is needed so her cells can function properly while she runs.
a)
chemical
b)
mechanical
c)
sound
d)
thermal
14.
When a spring is compressed, its ____ energy is increased.
a)
potential
b)
kinetic
15.
LEDs are more efficient than light bulbs because they convert much more of the electricity that is used into light.
a)
true
b)
false
16.
One reason that many energy conversions can be done more efficiently today is that technology has not improved.
a)
true
b)
false
17.
Large windows on some homes help keep the homes warm by capturing electrical energy.
a)
true
b)
false
18.
Gasoline engines convert chemical energy into kinetic energy.
a)
true
b)
false
19.
Windmills can be better used to generate electricity if large windmill farms are built in areas that have an inconsistent amount of wind.
a)
true
b)
false
20.
Solar cells are a type of technology that convert sunlight into electrical energy
a)
true
b)
false
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