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?

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.

How much of the world's CO2 is released by the United States?

  • Sorry, that’s incorrect.

    Almost 20% of the world's CO2 is released by the United States.

  • Sorry, that’s incorrect.

    Almost 20% of the world's CO2 is released by the United States.

  • Correct!

    Almost 20% of the world's CO2 is released by the United States.

Combustion of gasoline and diesel fuel emits which of the following?

  • Sorry, that’s incorrect.

    All of the above are emitted by vehicles running on gasoline and diesel fuel.

  • Sorry, that’s incorrect.

    All of the above are emitted by vehicles running on gasoline and diesel fuel.

  • Sorry, that’s incorrect.

    All of the above are emitted by vehicles running on gasoline and diesel fuel.

  • Sorry, that’s incorrect.

    All of the above are emitted by vehicles running on gasoline and diesel fuel.

  • Correct!

    All of the above are emitted by vehicles running on gasoline and diesel fuel.

How many commercial coal-fired power plants utilize carbon capture and sequestration practices in 2009?

  • Correct!

    In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.

  • Sorry, that’s incorrect.

    In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.

  • Sorry, that’s incorrect.

    In 2009, there were no commercial coal-fired plants utilizing carbon capture and sequestration.

Nuclear power provided what percentage of the total U.S. energy supply in 2008?

  • Sorry, that’s incorrect.

    Nuclear power accounted for 9% of the U.S. energy supply in 2008.

  • Correct!

    Nuclear power accounted for 9% of the U.S. energy supply in 2008.

  • Sorry, that’s incorrect.

    Nuclear power accounted for 9% of the U.S. energy supply in 2008.

About 21% of the electricity used in residential and commercial buildings goes to what use?

  • Sorry, that’s incorrect.

    Roughly 21% of the electricity used in residential and commercial buildings goes to lighting.

  • Sorry, that’s incorrect.

    Roughly 21% of the electricity used in residential and commercial buildings goes to lighting.

  • Correct!

    Roughly 21% of the electricity used in residential and commercial buildings goes to lighting.

  • Sorry, that’s incorrect.

    Roughly 21% of the electricity used in residential and commercial buildings goes to lighting.

As an automobile fuel, what amount of hydrogen compares with a gallon of gasoline?

  • Correct!

    A gallon of gasoline contains about the same energy as a kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.

  • Sorry, that’s incorrect.

    A gallon of gasoline contains about the same energy as 1 kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.

  • Sorry, that’s incorrect.

    A gallon of gasoline contains about the same energy as 1 kg of hydrogen. Although fuel cells are expected to be twice as efficient as gasoline vehicles, hydrogen is very diffuse and storing an ample supply on board represents an engineering challenge.

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.

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.

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Biobutanol

Biologically-derived butanol, a four-carbon-atom alcohol (as opposed to ethanol, which is a two-carbon-atom alcohol), intended for use as an automotive transportation fuel. It is currently produced from the sugars and starches found in commodity crops using genetically engineered microorganisms.

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