Physical Science, New York Edition

Chapter 9: Energy Sources

Standardized Test Practice

1.
Which of the following is the original source of coal?
A)swamp plants
B)plankton and algae
C)sea plants
D)volcanic activity
2.
Petroleum supplies 39% of the energy consumed in the United States. From this graph, you can conclude that _______.

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A)coal supplies more of the total energy demand than petroleum
B)most of the petroleum is used for purposes other than electric power
C)petroleum is one of the main sources of electric power
D)petroleum is a renewable resource
3.
About what percentage of total electricity in the United States comes from sources other than fossil fuels?

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A)28%
B)35%
C)31%
D)49%
4.
Which of the following sources of electrical power is most efficient?
A)coal power plants
B)hydroelectric dams
C)nuclear power plants
D)solar cells
5.
All of these are considered renewable sources of energy except _______.
A)hydroelectic dams
B)solar cells
C)wind turbines
D)nuclear power plants
6.
Based on this table, the least efficient part of the conversion of fossil fuels to electric power is _______.

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A)converting mechanical energy to electrical energy
B)distributing the electrical energy to homes
C)burning the fuel
D)the linkage between the turbine and the generator
7.
Once the water is converted to steam, what is the efficiency of the remaining parts of the process?

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A)64%
B)70%
C)75%
D)90%
8.
The purpose of control rods in a nuclear reactor is to _______.
A)convert nuclear energy to electrical energy
B)absorb some of the neutrons
C)produce neutrons
D)start the chain reaction
9.
The biggest problem in the disposal of spent nuclear fuel rods is _______.
A)low-level radioactivity
B)possible explosions
C)they are too heavy to move
D)high-level radioactivity
10.
Which of these substances is a potential biomass fuel?
A)coal slurries
B)geothermal heat
C)tidal energy
D)sugarcane fibers
Physical Science - New York Edition
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