Download Ch. 2 Energy

Ch. 2 Energy
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. The ability to do work or cause change is called
a. velocity.
b. energy.
c. transfer.
d. friction.
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2. Energy is measured in units called
a. joules.
b. pounds.
c. meters.
d. horsepower.
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3. What type of energy does a spinning turbine have?
a. electrical energy
b. nuclear energy
c. thermal energy
d. mechanical energy
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4. An example of something that stores chemical energy is
a. lightning.
b. a microwave.
c. a match.
d. light.
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5. What type of energy transformation is taking place when natural gas is used to heat water?
a. chemical energy into thermal energy
b. thermal energy into mechanical energy
c. mechanical energy into electromagnetic energy
d. electromagnetic energy into chemical energy
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6. Which of the following has kinetic energy?
a. a rock poised for a fall
b. an archer’s bow that is drawn back
c. a rolling bowling ball
d. a car waiting at a red light
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7. Potential energy that depends on height is called
a. kinetic energy.
b. gravitational potential energy.
c. elastic potential energy.
d. mechanical energy.
____
8. The rate at which energy is transferred is called
a. joules.
b. power.
c. work.
d. time.
____
9. How would you calculate an object’s mechanical energy?
a. Add its kinetic and potential energies.
b. Multiply its kinetic and potential energies.
c. Subtract its kinetic energy from its potential energy.
d. Subtract its potential energy from its kinetic energy.
____ 10. Energy stored in the nucleus of an atom is called
a. electromagnetic energy.
b. nuclear energy.
c. mechanical energy.
d. chemical energy.
____ 11. The energy associated with motion is called
a. kinetic energy.
b. elastic potential energy.
c. gravitational potential energy.
d. nuclear energy.
____ 12. Unlike kinetic energy, potential energy is
a. energy of motion.
b. stored.
c. conserved.
d. not measurable.
____ 13. The energy associated with the motion and position of an object is called
a. kinetic energy.
b. potential energy.
c. gravitational potential energy.
d. mechanical energy.
____ 14. Visible light is an example of
a. chemical energy.
b. electrical energy.
c. electromagnetic energy.
d. nuclear energy.
____ 15. Moving water can be used to produce electricity because
a. all forms of energy can be transformed into other forms.
b. energy can be transformed into power.
c. potential energy can be transformed into kinetic energy.
d. chemical energy can be transformed into mechanical energy.
____ 16. A change from one form of energy into another is called
a. an energy increase.
b. work.
c. conservation of energy.
d. an energy transformation.
____ 17. When you rub your hands together on a cold day, you use friction to transform
a. mechanical energy into thermal energy.
b. thermal energy into nuclear energy.
c. nuclear energy into electrical energy.
d. electrical energy into electromagnetic energy.
____ 18. The law of conservation of energy states that when one form of energy is transformed to another,
a. energy is destroyed in the process.
b. no energy is destroyed in the process.
c. energy is created in the process.
d. some amount of energy cannot be accounted for.
Modified True/False
Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.
____ 19. When work is done on an object, the object gains energy. ____________________
____ 20. The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf.
____________________
____ 21. A compressed spring has elastic potential energy. ____________________
____ 22. In a machine, work output is less than work input because some energy is converted into thermal energy.
____________________
____ 23. A nuclear reaction in which the nuclei of atoms join together is called nuclear fission.
____________________
Completion
Complete each statement.
24. A large truck and a small car are moving at the same speed. The truck has greater kinetic energy because its
____________________ is greater.
25. If the velocity of an object is doubled, its kinetic energy is multiplied by ____________________.
26. As water runs over a waterfall, its potential energy is converted into ____________________ energy.
27. Work is the transfer of ____________________ from one object to another.
28. A baseball flying through the air has ____________________ energy because of its motion.
29. If an object has mechanical energy, it can do ____________________ on another object.
30. ____________________ energy, such as ultraviolet radiation, travels in the form of waves.
Ch. 2 Energy
Answer Section
MULTIPLE CHOICE
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B
PTS: 1
DIF: L1
Explain how energy, work, and power are related.
TOP:
knowledge
A
PTS: 1
DIF: L1
Explain how energy, work, and power are related.
TOP:
knowledge
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DIF: L2
Explain how to determine an object’s mechanical energy.
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BLM: comprehension
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DIF: L2
Explain how different forms of energy are related.
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application
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DIF: L2
Name and describe the two basic types of energy.
TOP:
application
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PTS: 1
DIF: L1
Name and describe the two basic types of energy.
TOP:
knowledge
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PTS: 1
DIF: L1
Explain how energy, work, and power are related.
TOP:
knowledge
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DIF: L1
Explain how to determine an object’s mechanical energy.
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DIF: L1
Name and describe the two basic types of energy.
TOP:
knowledge
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Name and describe the two basic types of energy.
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knowledge
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PTS: 1
DIF: L1
Explain how to determine an object’s mechanical energy.
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PTS: 1
DIF: L2
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BLM: comprehension
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DIF: L2
Explain how different forms of energy are related.
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comprehension
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List other forms of energy.
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List other forms of energy.
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List other forms of energy.
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Explain how different forms of energy are related.
knowledge
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DIF: L2
State the law of conservation of energy.
application
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DIF: L1
State the law of conservation of energy.
knowledge
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MODIFIED TRUE/FALSE
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Explain how energy, work, and power are related.
comprehension
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OBJ: Name and describe the two basic types of energy.
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BLM: application
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Name and describe the two basic types of energy.
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application
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State the law of conservation of energy.
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comprehension
F, fusion
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OBJ: List other forms of energy.
TOP: PH_EN_SC_MGS_2010_X_56131
BLM: knowledge
COMPLETION
24. ANS: mass
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DIF: L2
TOP: m_ch05_041
25. ANS: four
OBJ: Name and describe the two basic types of energy.
BLM: application
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26. ANS: kinetic
OBJ: Name and describe the two basic types of energy.
BLM: analysis
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27. ANS: energy
OBJ: Explain how different forms of energy are related.
BLM: knowledge
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28. ANS: kinetic
OBJ: Explain how energy, work, and power are related.
BLM: knowledge
PTS: 1
DIF: L2
TOP: m_ch05_043
29. ANS: work
OBJ: Name and describe the two basic types of energy.
BLM: comprehension
PTS: 1
DIF: L1
TOP: m_ch05_056
30. ANS: Electromagnetic
OBJ: Explain how to determine an object’s mechanical energy.
BLM: knowledge
PTS: 1
DIF: L2
TOP: m_ch05_044
OBJ: List other forms of energy.
BLM: comprehension