Question 1

The contribution of fossil fuels to world energy supply is about

Accepted Answer

A)  25 percent. 
B)  62 percent. 
C)  87 percent. 
D)  95 percent. 
A)  25 percent. 
B)  62 percent. 
C)  87 percent. 
D)  95 percent. C

Question 2

Environmental concerns are the most important factor in limiting the expansion of which of the following energy sources?

Accepted Answer

A)  wind 
B)  geothermal 
C)  hydropower 
D)  solar 
A)  wind 
B)  geothermal 
C)  hydropower 
D)  solar C

Question 3

It seems possible that a serious effort to improve the efficiency of electricity use in the United States could reduce its consumption of electric energy by

Accepted Answer

A)  5 percent. 
B)  10 percent. 
C)  25 percent. 
D)  50 percent. 
A)  5 percent. 
B)  10 percent. 
C)  25 percent. 
D)  50 percent. D

Question 4

Which statement does not apply to nuclear fusion?

Accepted Answer

A)  It is the energy source of the sun and stars. 
B)  It has produced energy in the laboratory. 
C)  It is expected to produce more radioactive waste than nuclear fission. 
D)  Its fuel supply is almost unlimited. 
A)  It is the energy source of the sun and stars. 
B)  It has produced energy in the laboratory. 
C)  It is expected to produce more radioactive waste than nuclear fission. 
D)  Its fuel supply is almost unlimited.

Question 5

Average energy use per person in the United States today is about

Accepted Answer

A)  the same as the world average. 
B)  50 percent more than the world average. 
C)  4 times the world average. 
D)  10 times the world average. 
A)  the same as the world average. 
B)  50 percent more than the world average. 
C)  4 times the world average. 
D)  10 times the world average.

Question 6

If the Antarctic and Greenland icecaps melt completely, sea level will rise

Accepted Answer

A)  mainly in the tropical regions. 
B)  mainly in the polar regions. 
C)  everywhere by about 1 m. 
D)  everywhere by over 50 m. 
A)  mainly in the tropical regions. 
B)  mainly in the polar regions. 
C)  everywhere by about 1 m. 
D)  everywhere by over 50 m.

Question 7

Solar radiation is ultimately responsible for

Accepted Answer

A)  wind energy. 
B)  geothermal energy. 
C)  nuclear energy. 
D)  tidal energy. 
A)  wind energy. 
B)  geothermal energy. 
C)  nuclear energy. 
D)  tidal energy.

Question 8

Which of these statements is not true for oil from tar sands?

Accepted Answer

A)  Tar sands contain almost as much oil as reserves of ordinary crude oil. 
B)  Oil from tar sands costs more per barrel than ordinary crude oil. 
C)  Producing oil from tar sands involves emitting less carbon dioxide than extracting crude oil does. 
D)  Canada is the largest producer of tar sands oil. 
A)  Tar sands contain almost as much oil as reserves of ordinary crude oil. 
B)  Oil from tar sands costs more per barrel than ordinary crude oil. 
C)  Producing oil from tar sands involves emitting less carbon dioxide than extracting crude oil does. 
D)  Canada is the largest producer of tar sands oil.

Question 9

Of the following energy sources, the one most likely to run out of reserves first is

Accepted Answer

A)  coal. 
B)  oil. 
C)  natural gas. 
D)  nuclear. 
A)  coal. 
B)  oil. 
C)  natural gas. 
D)  nuclear.

Question 10

Since 1900 the world's population has increased by

Accepted Answer

A)  about 50 percent. 
B)  about 100 percent. 
C)  about 200 percent. 
D)  over 400 percent. 
A)  about 50 percent. 
B)  about 100 percent. 
C)  about 200 percent. 
D)  over 400 percent.

Question 11

Of the following greenhouse gases, the least important is/are

Accepted Answer

A)  carbon dioxide. 
B)  CFC and HCFC refrigeration gases. 
C)  nitrous oxide. 
D)  methane. 
A)  carbon dioxide. 
B)  CFC and HCFC refrigeration gases. 
C)  nitrous oxide. 
D)  methane.

Question 12

The earth's atmosphere is mainly heated by

Accepted Answer

A)  visible light radiated by the sun. 
B)  infrared light radiated by the sun. 
C)  infrared light radiated by the earth. 
D)  hot exhaust gases from burning fossil fuels. 
A)  visible light radiated by the sun. 
B)  infrared light radiated by the sun. 
C)  infrared light radiated by the earth. 
D)  hot exhaust gases from burning fossil fuels.

Question 13

Average energy use per person in the United States today is about

Accepted Answer

A)  930 W. 
B)  9.3 kW. 
C)  930 kW. 
D)  9.3 MW. 
A)  930 W. 
B)  9.3 kW. 
C)  930 kW. 
D)  9.3 MW.

Question 14

Of these sources, which is responsible for the most energy today?

Accepted Answer

A)  tidal 
B)  geothermal 
C)  hydropower 
D)  solar 
A)  tidal 
B)  geothermal 
C)  hydropower 
D)  solar

Question 15

In the United States, the lowest cost per unit of electrical output in the immediate future would come from using which of these energy sources?

Accepted Answer

A)  coal 
B)  nuclear 
C)  natural gas 
D)  hydro 
A)  coal 
B)  nuclear 
C)  natural gas 
D)  hydro

Question 16

The proportion of the world's electricity that comes from nuclear energy is roughly

Accepted Answer

A)  5 percent. 
B)  10 percent. 
C)  20 percent. 
D)  30 percent. 
A)  5 percent. 
B)  10 percent. 
C)  20 percent. 
D)  30 percent.

Question 17

A factor that helps prevent the widespread use of hydrogen as a fuel is

Accepted Answer

A)  the need to first separate hydrogen from one of its chemical compounds, such as water. 
B)  the greenhouse gas produced when it combines with oxygen. 
C)  the small amount of energy liberated when it combines with oxygen. 
D)  its inability to be used in fuel cells. 
A)  the need to first separate hydrogen from one of its chemical compounds, such as water. 
B)  the greenhouse gas produced when it combines with oxygen. 
C)  the small amount of energy liberated when it combines with oxygen. 
D)  its inability to be used in fuel cells.

Question 18

Eventually, if bioethanol remains in use, it will probably be made from

Accepted Answer

A)  corn. 
B)  sugar cane. 
C)  cellulose. 
D)  natural gas. 
A)  corn. 
B)  sugar cane. 
C)  cellulose. 
D)  natural gas.

Question 19

Compact fluorescent light bulbs are more efficient than incandescent light bulbs

Accepted Answer

A)  but do not last as long. 
B)  and last about as long. 
C)  and last longer. 
D)  any of these depending on the bulb's power. 
A)  but do not last as long. 
B)  and last about as long. 
C)  and last longer. 
D)  any of these depending on the bulb's power.

Question 20

At present, the source of most electricity from moving water is

Accepted Answer

A)  dams in rivers. 
B)  tidal flows. 
C)  ocean waves. 
D)  ocean currents. 
A)  dams in rivers. 
B)  tidal flows. 
C)  ocean waves. 
D)  ocean currents.

The contribution of fossil fuels to world energy supply is about

Environmental concerns are the most important factor in limiting the expansion of which of the following energy sources?

It seems possible that a serious effort to improve the efficiency of electricity use in the United States could reduce its consumption of electric energy by

Which statement does not apply to nuclear fusion?

Average energy use per person in the United States today is about

If the Antarctic and Greenland icecaps melt completely, sea level will rise

Solar radiation is ultimately responsible for

Which of these statements is not true for oil from tar sands?

Of the following energy sources, the one most likely to run out of reserves first is

Since 1900 the world's population has increased by

Of the following greenhouse gases, the least important is/are

The earth's atmosphere is mainly heated by

Average energy use per person in the United States today is about

Of these sources, which is responsible for the most energy today?

In the United States, the lowest cost per unit of electrical output in the immediate future would come from using which of these energy sources?

The proportion of the world's electricity that comes from nuclear energy is roughly

A factor that helps prevent the widespread use of hydrogen as a fuel is

Eventually, if bioethanol remains in use, it will probably be made from

Compact fluorescent light bulbs are more efficient than incandescent light bulbs

At present, the source of most electricity from moving water is

The Scientific Method

Motion

Energy

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

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The Evolving Earth

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Exam 4: Energy and the Future

The contribution of fossil fuels to world energy supply is about

Environmental concerns are the most important factor in limiting the expansion of which of the following energy sources?

It seems possible that a serious effort to improve the efficiency of electricity use in the United States could reduce its consumption of electric energy by

Which statement does not apply to nuclear fusion?

Average energy use per person in the United States today is about

If the Antarctic and Greenland icecaps melt completely, sea level will rise

Solar radiation is ultimately responsible for

Which of these statements is not true for oil from tar sands?

Of the following energy sources, the one most likely to run out of reserves first is

Since 1900 the world's population has increased by

Of the following greenhouse gases, the least important is/are

The earth's atmosphere is mainly heated by

Average energy use per person in the United States today is about

Of these sources, which is responsible for the most energy today?

In the United States, the lowest cost per unit of electrical output in the immediate future would come from using which of these energy sources?

The proportion of the world's electricity that comes from nuclear energy is roughly

A factor that helps prevent the widespread use of hydrogen as a fuel is

Eventually, if bioethanol remains in use, it will probably be made from

Compact fluorescent light bulbs are more efficient than incandescent light bulbs

At present, the source of most electricity from moving water is

The Scientific Method

Motion

Energy

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe Galaxies

Filters