The National Academies
What You Need To Know About Energy
What do you know about energy?
Which of the following energy sources releases carbon dioxide when burned?
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Correct!
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
Which residential usage consumes the largest amount of energy?
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Sorry, that’s incorrect.
Consuming the largest amount of energy, space heating accounts for 31% of all residential energy used. Space cooling accounts for an additional 12% of energy usage.
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Sorry, that’s incorrect.
Consuming the largest amount of energy, space heating accounts for 31% of all residential energy used. Space cooling accounts for an additional 12% of energy usage.
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Correct!
Consuming the largest amount of energy, space heating accounts for 31% of all residential energy used. Space cooling accounts for an additional 12% of energy usage.
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Sorry, that’s incorrect.
Consuming the largest amount of energy, space heating accounts for 31% of all residential energy used. Space cooling accounts for an additional 12% of energy usage.
What percentage of U.S. electricity was generated by wind in 2008?
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Correct!
Almost 1% of U.S. electricity was generated by wind in 2008.
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Sorry, that’s incorrect.
Almost 1% of U.S. electricity was generated by wind in 2008.
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Sorry, that’s incorrect.
Almost 1% of U.S. electricity was generated by wind in 2008.
In 2008, approximately how much of the oil used in the U.S. was imported?
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Sorry, that’s incorrect.
In 2008, the U.S. imported about 66% of its oil supply. This percentage is expected to grow even higher over the next two decades.
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Sorry, that’s incorrect.
In 2008, the U.S. imported about 66% of its oil supply. This percentage is expected to grow even higher over the next two decades.
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Correct!
In 2008, the U.S. imported about 66% of its oil supply. This percentage is expected to grow even higher over the next two decades.
True or False: Increasing the energy supply is the only answer to a stable energy future.
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Sorry, that’s incorrect.
Reducing demand through the improved efficiency of devices and procedures is another way to improve our energy situation.
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Correct!
Reducing demand through the improved efficiency of devices and procedures is another way to improve our energy situation.
Which primary energy source did we depend on the most to generate electricity in the United States in 2008?
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Correct!
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
True or False: Burning coal in electric power plants is a major source of CO2 and other emissions. However, its use doesn't have negative consequences beyond the emissions caused by combustion.
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Sorry, that’s incorrect.
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
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Correct!
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
America, with 5% of the planet's population, consumes how much of the world's total energy?
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Sorry, that’s incorrect.
With 5% of the planet's population, the United States uses 20% of the world's total energy.
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Sorry, that’s incorrect.
With 5% of the planet's population, the United States uses 20% of the world's total energy.
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Correct!
With 5% of the planet's population, the United States uses 20% of the world's total energy.
How much of the world's CO2 is released by the United States?
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Sorry, that’s incorrect.
Almost 20% of the world's CO2 is released by the United States.
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Sorry, that’s incorrect.
Almost 20% of the world's CO2 is released by the United States.
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Correct!
Almost 20% of the world's CO2 is released by the United States.
The United States is home to how many of the world's automobiles?
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Sorry, that’s incorrect.
With less than 5% of the world's population, the United States is home to one-third of the world's automobiles.
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Correct!
With less than 5% of the world's population, the United States is home to one-third of the world's automobiles.
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Sorry, that’s incorrect.
With less than 5% of the world's population, the United States is home to one-third of the world's automobiles.
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