The National Academies
What You Need To Know About Energy
What do you know about energy?
Combustion of gasoline and diesel fuel emits which of the following?
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Correct!
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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.
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.
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.
True or False: Burning biofuels does not release carbon dioxide.
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Sorry, that’s incorrect.
Biofuels contain carbon and although they may burn “cleaner” than oil-derived fuels, they do not avoid generating carbon dioxide emissions.
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Correct!
Biofuels contain carbon and although they may burn “cleaner” than oil-derived fuels, they do not avoid generating carbon dioxide emissions.
Most of the world's energy originates from which two primary sources:
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Correct!
The energy we capture for use on Earth comes largely from the sun or from nuclear forces local to our own planet.
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Sorry, that’s incorrect.
The energy we capture for use on Earth comes largely from the sun or from nuclear forces local to our own planet.
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Sorry, that’s incorrect.
The energy we capture for use on Earth comes largely from the sun or from nuclear forces local to our own planet.
Energy intensity is a measure of:
- The amount of energy used by a nation per unit of GDP
- The amount of energy contained in a given amount of fuel
- The amount of electric current passing through a point
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Correct!
Energy intensity is a measure of a nation's energy efficiency represented through energy use per unit of GDP (Gross Domestic Product).
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Sorry, that’s incorrect.
Energy intensity is a measure of a nation's energy efficiency represented through energy use per unit of GDP (Gross Domestic Product).
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Sorry, that’s incorrect.
Energy intensity is a measure of a nation's energy efficiency represented through energy use per unit of GDP (Gross Domestic Product).
Of the following fossil fuels, which is typically the least expensive for its energy content?
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Sorry, that’s incorrect.
In 2005, a million Btu of energy from coal cost approximately $2, versus $5 for natural gas and $10 for oil. However, prices can fluctuate due to changes in the economy and new government policies.
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Sorry, that’s incorrect.
In 2005, a million Btu of energy from coal cost approximately $2, versus $5 for natural gas and $10 for oil. However, prices can fluctuate due to changes in the economy and new government policies.
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Correct!
In 2005, a million Btu of energy from coal cost approximately $2, versus $5 for natural gas and $10 for oil. However, prices can fluctuate due to changes in the economy and new government policies.
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.
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