The National Academies: What You Need To Know About Energy

The National Academies

What You Need To Know About Energy

What do you know about energy?

Which of the following sources do experts expect will provide us with the “silver bullet” solution to our energy needs?

  • Sorry, that’s incorrect.

    There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.

  • Sorry, that’s incorrect.

    There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.

  • Sorry, that’s incorrect.

    There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.

  • Correct!

    There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.

Which energy sources together account for 84% of the energy used in the United States?

  • Sorry, that’s incorrect.

    Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.

  • Correct!

    Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.

  • Sorry, that’s incorrect.

    Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.

Which of the following is considered an obstacle to cars running on hydrogen fuel cells?

  • Sorry, that’s incorrect.

    All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.

  • Sorry, that’s incorrect.

    All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.

  • Sorry, that’s incorrect.

    All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.

  • Correct!

    All of the reasons mentioned are considered obstacles to producing cars that run on hydrogen fuel cells.

About how much of the world's coal reserves are located in the United States?

  • Sorry, that’s incorrect.

    More than a quarter of the world's coal reserves are located in the United States.

  • Correct!

    More than a quarter of the world's coal reserves are located in the United States.

  • Sorry, that’s incorrect.

    More than a quarter of the world's coal reserves are located in the United States.

In 2008, what percentage of the United States' total energy consumption came from oil?

  • Sorry, that’s incorrect.

    In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.

  • Sorry, that’s incorrect.

    In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.

  • Correct!

    In 2008, 37% of the United States' total energy consumption came from oil, more than any other energy source.

Which of the following is not considered to be a drawback to wind energy?

  • Sorry, that’s incorrect.

    While wind energy has many benefits, all of the above are considered drawbacks to wind energy.

  • Sorry, that’s incorrect.

    While wind energy has many benefits, all of the above are considered drawbacks to wind energy.

  • Sorry, that’s incorrect.

    While wind energy has many benefits, all of the above are considered drawbacks to wind energy.

  • Correct!

    While wind energy has many benefits, all of the above are considered drawbacks to wind energy.

In 2008, approximately how much energy did the United States use?

  • 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.

  • 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.

  • 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.

How much electricity does an average U.S. household consume each year?

  • Sorry, that’s incorrect.

    The average U.S. household consumes an average of 10,000 kilowatt-hours each year.

  • Sorry, that’s incorrect.

    The average U.S. household consumes an average of 10,000 kilowatt-hours each year.

  • Correct!

    The average U.S. household consumes an average of 10,000 kilowatt-hours each year.

The consumption of energy worldwide is projected to rise by how much between 2006 and 2030?

  • Sorry, that’s incorrect.

    Worldwide consumption of energy sources is projected to rise by nearly 50% between 2006 and 2030.

  • Correct!

    Worldwide consumption of energy sources is projected to rise by nearly 50% between 2006 and 2030.

  • Sorry, that’s incorrect.

    Worldwide consumption of energy sources is projected to rise by nearly 50% between 2006 and 2030.

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Energy Hands-on

Energy Defined

Intermittent Energy Source

An energy source characterized by output that is dependent on the natural variability of the source rather than the requirements of consumers. Solar energy is an example of an intermittent energy source since it is only available when the sun is shining. Wind is also an intermittent energy source.

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