The National Academies
What You Need To Know About Energy
What do you know about 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.
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.
What is the commonly accepted unit of measurement for electric current—or the amount of an electric charge passing a point per unit time?
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Sorry, that’s incorrect.
The ampere, or amp, is the most commonly used measurement for electric current.
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Sorry, that’s incorrect.
The ampere, or amp, is the most commonly used measurement for electric current.
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Correct!
The ampere, or amp, is the most commonly used measurement for electric current.
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Sorry, that’s incorrect.
The ampere, or amp, is the most commonly used measurement for electric current.
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.
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 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.
By 2030, today's coal-fired power plants are projected to emit how much less CO2 than they emit now?
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Correct!
Coal-fired power plants are likely to emit 30% less CO2 in 2030.
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Sorry, that’s incorrect.
Coal-fired power plants are likely to emit 30% less CO2 in 2030.
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Sorry, that’s incorrect.
Coal-fired power plants are likely to emit 30% less CO2 in 2030.
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.
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.
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