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Name ___________________________
Class ___________________
Date _____________
Chapter 15 Energy
Chapter Test B
Multiple Choice
Write the letter that best answers the question or completes the statement on
the line provided.
1. Work is a transfer of
a. energy.
c. mass.
b. force.
d. motion.
2. The energy of motion is called
a. kinetic energy.
b. potential energy.
c. thermal energy.
d. work.
3. An object’s gravitational potential energy is directly related
to all of the following EXCEPT
a. its height relative to a reference level.
b. its mass.
c. its speed.
d. the acceleration due to gravity.
4. Which of the following is an example of an object with
elastic potential energy?
a. a wind-up toy that has been wound up
b. a compressed basketball
c. a stretched rubber band
d. all of the above
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5. A 4-kilogram cat is resting on top of a bookshelf that is
2 meters high. What is the cat’s gravitational potential
energy relative to the floor if the acceleration due to
gravity is 9.8 m/s2?
a. 6 J
b. 8 J
c. 20 J
d. 78 J
6. Which of the following increases when an object
becomes warmer?
a. chemical energy
b. elastic potential energy
c. nuclear energy
d. thermal energy
7. The energy stored in gasoline is
a. chemical energy.
b. electromagnetic energy.
c. mechanical energy.
d. nuclear energy.
8. Nuclear power plants are designed to convert nuclear
energy into what type of energy?
a. chemical
b. electrical
c. geothermal
d. mechanical
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Chapter 15 Test B
157
Name ___________________________
Class ___________________
Date _____________
9. Which of the following statements is true according to the
law of conservation of energy?
a. Energy cannot be created.
b. Energy cannot be destroyed.
c. Energy can be converted from one form to another.
d. all of the above
10. The mechanical energy of an object equals its
a. chemical energy plus its nuclear energy.
b. kinetic energy plus its potential energy.
c. nuclear energy.
d. thermal energy.
11. The equation E = mc2 relates energy and
a. force.
b. gravity.
c. mass.
d. work.
12. In which of the following does Einstein’s famous
equation apply?
a. chemical reactions
b. collisions between objects
c. electromagnetic energy conversions
d. nuclear fission and fusion reactions
13. What is biomass energy?
a. the chemical energy stored in living things
b. the electromagnetic energy stored in living things
c. the nuclear energy stored in living things
d. the thermal energy stored in living things
14. A drawback of solar energy is that it
a. cannot be converted directly into electrical energy.
b. depends on the climate.
c. produces water pollution.
d. is not a renewable resource.
Completion
Complete each statement on the line provided.
1. Energy of an object increases when
is done
on the object.
2. If the
of an object doubles, its kinetic energy
doubles.
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Physical Science
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Chapter 15 Test B
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15. Which of the following types of transportation is NOT mass
transportation?
a. bus
b. car
c. streetcar
d. train
Name ___________________________
Class ___________________
Date _____________
3. Energy that is stored due to position or shape is called
energy.
4. Mechanical energy does not include kinetic energy or
energy
5. The sum of the kinetic energy and potential energy of an object is
called its
energy.
6. Wind turbines convert
energy into electrical
energy.
7. The process of changing energy from one form to another is called
energy
.
8. “Energy cannot be created or destroyed” is a statement of the law
of
.
2
.
9. In the equation E = mc , c is the speed of
10. Energy resources that exist in limited amounts and, once used,
cannot be replaced except over the course of millions of years are
called
energy resources.
11. Geothermal energy, in addition to being renewable, offers the
benefit of being
.
Short Answer
In complete sentences, write the answers to the questions on
the lines provided.
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1. What evidence is there that energy is transferred as a golf club
does work on a golf ball?
2. What are the two general types of energy that can be used to
classify many forms of energy?
3. What is the most familiar form of electromagnetic energy?
Physical Science
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Chapter 15 Test B
159
Name ___________________________
Class ___________________
Date _____________
4. What is a characteristic of a renewable energy resource?
5. Why might a consumer buy a more energy-efficient refrigerator
even though it may cost more than a conventional refrigerator?
Using Science Skills
Use the diagram to answer each question.
Write the answers on a separate sheet of paper.
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Physical Science
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Chapter 15 Test B
A
B
C
Figure 15-1
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1. Applying Concepts In Figure 15-1,
the block in C has 5 J of kinetic energy.
How much work did the compressed
spring do on the block? Explain your
answer.
2. Classifying What form of energy
does the compressed spring have in
Figure 15-1?
3. Inferring In Figure 15-1, what has
happened to the stored energy of the
spring between A and B?
4. Applying Concepts In Figure 15-1,
how would the kinetic energy of the
block in C be different if the tabletop
was not frictionless? Explain your
answer.
5. Interpreting Graphics In Figure 15-1,
how has the kinetic energy of the
block changed between A and B?