The National Academies
What You Need To Know About Energy
What do you know about energy?
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.
In the United States, which economic sector releases the most CO2?
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Sorry, that’s incorrect.
In the United States, the transportation sector releases the most CO2. In 2006, the transportation sector released nearly 2 billion metric tons of carbon dioxide, nearly all of which was from oil.
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Sorry, that’s incorrect.
In the United States, the transportation sector releases the most CO2. In 2006, the transportation sector released nearly 2 billion metric tons of carbon dioxide, nearly all of which was from oil.
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Correct!
In the United States, the transportation sector releases the most CO2. In 2006, the transportation sector released nearly 2 billion metric tons of carbon dioxide, nearly all of which was from oil.
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Sorry, that’s incorrect.
In the United States, the transportation sector releases the most CO2. In 2006, the transportation sector released nearly 2 billion metric tons of carbon dioxide, nearly all of which was from oil.
In 2008, what percentage of the United States' total energy consumption came from oil?
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Sorry, that’s incorrect.
In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.
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Sorry, that’s incorrect.
In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.
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Correct!
In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.
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.
Which of the following is frequently used as a unit of measurement for the energy content of fuels?
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Sorry, that’s incorrect.
The British Thermal Unit, or Btu, is frequently used as a measure for energy content of fuels. One gallon of gasoline contains about 124,000 Btu.
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Correct!
The British Thermal Unit, or Btu, is frequently used as a measure for energy content of fuels. One gallon of gasoline contains about 124,000 Btu.
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Sorry, that’s incorrect.
The British Thermal Unit, or Btu, is frequently used as a measure for energy content of fuels. One gallon of gasoline contains about 124,000 Btu.
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Sorry, that’s incorrect.
The British Thermal Unit, or Btu, is frequently used as a measure for energy content of fuels. One gallon of gasoline contains about 124,000 Btu.
How much of the U.S. supply of natural gas is imported from outside North America?
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Correct!
Less than 2% of the U.S. supply of natural gas is imported from outside North America.
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Sorry, that’s incorrect.
Less than 2% of the U.S. supply of natural gas is imported from outside North America.
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Sorry, that’s incorrect.
Less than 2% of the U.S. supply of natural gas is imported from outside North America.
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.
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.
How many commercial coal-fired power plants utilize carbon capture and sequestration practices in 2009?
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Correct!
In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.
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Sorry, that’s incorrect.
In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.
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Sorry, that’s incorrect.
In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.
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