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.
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.
Which primary energy source did we depend on the most to generate electricity in the United States in 2008?
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Correct!
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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Sorry, that’s incorrect.
In 2008, the United States depended most on coal to generate electricity. Coal provided approximately 49% of the electricity generated by the United States that year.
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.
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 U.S. electricity was generated by wind in 2008?
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Correct!
Almost 1% of U.S. electricity was generated by wind in 2008.
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Sorry, that’s incorrect.
Almost 1% of U.S. electricity was generated by wind in 2008.
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Sorry, that’s incorrect.
Almost 1% of U.S. electricity was generated by wind in 2008.
Which of the following is considered an obstacle to cars running on hydrogen fuel cells?
- Cost of fuel cells
- Difficulty storing and transporting hydrogen
- Process of collecting pure hydrogen
- All of the above
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Sorry, that’s incorrect.
All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.
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Sorry, that’s incorrect.
All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.
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Sorry, that’s incorrect.
All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.
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Correct!
All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.
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.
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.
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- Ampere
A unit of measure for electric current that refers to the amount of electric charge passing a point per unit of time. Ampere is frequently abbreviated to “amp.”
