The National Academies
What You Need To Know About Energy
What do you know about energy?
Nuclear power provided what percentage of the total U.S. energy supply in 2008?
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Sorry, that’s incorrect.
Nuclear power accounted for 9% of the U.S. energy supply in 2008.
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Correct!
Nuclear power accounted for 9% of the U.S. energy supply in 2008.
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Sorry, that’s incorrect.
Nuclear power accounted for 9% of the U.S. energy supply in 2008.
Which renewable energy source contributed the most to the total energy consumed in the United States in 2008?
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Sorry, that’s incorrect.
Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.
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Sorry, that’s incorrect.
Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.
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Sorry, that’s incorrect.
Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.
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Correct!
Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.
Renewable energy (solar, wind, geothermal, hydroelectric, biofuels, waste, and wood) accounted for what percentage of the total energy supply in the United States in 2008?
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Sorry, that’s incorrect.
Renewable energy accounted for 7% of the total U.S. energy supply in 2008, less than any other type of energy source.
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Correct!
Renewable energy accounted for 7% of the total U.S. energy supply in 2008, less than any other type of energy source.
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Sorry, that’s incorrect.
Renewable energy accounted for 7% of the total U.S. energy supply in 2008, less than any other type of energy source.
How much of France's electricity is produced by nuclear power plants?
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Sorry, that’s incorrect.
Nearly 80% of France's electricity is produced by nuclear power plants.
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Sorry, that’s incorrect.
Nearly 80% of France's electricity is produced by nuclear power plants.
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Correct!
Nearly 80% of France's electricity is produced by nuclear power plants.
As an automobile fuel, what amount of hydrogen compares with a gallon of gasoline?
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Correct!
A gallon of gasoline contains about the same energy as a kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.
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Sorry, that’s incorrect.
A gallon of gasoline contains about the same energy as 1 kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.
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Sorry, that’s incorrect.
A gallon of gasoline contains about the same energy as 1 kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.
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 America's total energy came from wind in 2008?
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Correct!
In 2008, wind accounted for 0.5% of America's energy portfolio.
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Sorry, that’s incorrect.
In 2008, wind accounted for 0.5% of America's energy portfolio.
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Sorry, that’s incorrect.
In 2008, wind accounted for 0.5% of America's energy portfolio.
What percentage of the coal mined in the United States was used to generate electricity in 2006?
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Sorry, that’s incorrect.
90% of the coal mined in the United States was used to generate electricity in 2006.
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Sorry, that’s incorrect.
90% of the coal mined in the United States was used to generate electricity in 2006.
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Correct!
90% of the coal mined in the United States was used to generate electricity in 2006.
According to the Corporate Average Fuel Economy (CAFE) standards updated in December 2007, what is the average miles per gallon (mpg) required for new cars, SUVs, and light trucks (combined) by 2020?
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Sorry, that’s incorrect.
Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.
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Correct!
Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.
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Sorry, that’s incorrect.
Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.
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