The National Academies
What You Need To Know About Energy
What do you know about energy?
In 2008, approximately how much energy did the United States use?
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Sorry, that’s incorrect.
In 2008, the United States used approximately 99.2 quads. One quad is about as much total energy as the city of Chicago requires in one year.
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Correct!
In 2008, the United States used approximately 99.2 quads. One quad is about as much total energy as the city of Chicago requires in one year.
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Sorry, that’s incorrect.
In 2008, the United States used approximately 99.2 quads. One quad is about as much total energy as the city of Chicago requires in one year.
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.
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: Lighting accounts for 18% of all electricity used in the United States.
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Correct!
Lighting accounts for 18% of the electricity used in the United States. A 12% decrease in overall electricity use in buildings could be realized if incandescent bulbs were replaced with CFL or LED bulbs.
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Sorry, that’s incorrect.
Lighting accounts for 18% of the electricity used in the United States. A 12% decrease in overall electricity use in buildings could be realized if incandescent bulbs were replaced with CFL or LED bulbs.
Which of the following is not considered to be a drawback to wind energy?
- Wind's intermittency
- Aesthetic impact of wind farms
- Risks to birds and bats
- All of the above are considered drawbacks
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Sorry, that’s incorrect.
While wind energy has many benefits, all of the above are considered drawbacks to wind energy.
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Sorry, that’s incorrect.
While wind energy has many benefits, all of the above are considered drawbacks to wind energy.
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Sorry, that’s incorrect.
While wind energy has many benefits, all of the above are considered drawbacks to wind energy.
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Correct!
While wind energy has many benefits, all of the above are considered drawbacks to wind 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.
How much carbon dioxide is emitted by the average U.S. car driving one mile?
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Sorry, that’s incorrect.
The average U.S. car gets 21.4 mpg. About 19 pounds of carbon dioxide are emitted for every gallon burned, or 0.9 lb/mile.
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Sorry, that’s incorrect.
The average U.S. car gets 21.4 mpg. About 19 pounds of carbon dioxide are emitted for every gallon burned, or 0.9 lb/mile.
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Correct!
The average U.S. car gets 21.4 mpg. About 19 pounds of carbon dioxide are emitted for every gallon burned, or 0.9 lb/mile.
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.
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.
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