What You Need To Know About Energy
What do you know about energy?
True or false? Fuel cells store energy.
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Sorry, that’s incorrect.
Fuel cells are an efficient way to convert hydrogen to electricity, but the energy is stored in the hydrogen.
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Correct!
Fuel cells are an efficient way to convert hydrogen to electricity, but the energy is stored in the hydrogen.
True or False: Burning coal in electric power plants is a major source of CO2 and other emissions. However, its use doesn't have negative consequences beyond the emissions caused by combustion.
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Sorry, that’s incorrect.
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
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Correct!
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
What is the largest reservoir of stored solar energy?
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Sorry, that’s incorrect.
Fossil fuels represent the largest source of stored solar energy, resulting from the transformation of biomass over millions of years into oil, natural gas and coal.
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Sorry, that’s incorrect.
Fossil fuels represent the largest source of stored solar energy, resulting from the transformation of biomass over millions of years into oil, natural gas and coal.
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Correct!
Fossil fuels represent the largest source of stored solar energy, resulting from the transformation of biomass over millions of years into oil, natural gas and coal.
If electricity production wastes between 40 and 65% of the primary energy source, why is it used?
- Producing electricity is a way to store energy.
- Electricity production results in no harmful emissions.
- Electricity is a versatile energy carrier.
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Sorry, that’s incorrect.
Most direct uses of primary energy are limited to generating heat and motion. Electricity, by contrast, is extremely versatile, with a wide range of complex applications.
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Sorry, that’s incorrect.
Most direct uses of primary energy are limited to generating heat and motion. Electricity, by contrast, is extremely versatile, with a wide range of complex applications.
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Correct!
Most direct uses of primary energy are limited to generating heat and motion. Electricity, by contrast, is extremely versatile, with a wide range of complex applications.
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 many gallons of water are required to hydraulically fracture a well, on average in the U.S.?
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Sorry, that’s incorrect.
The national average is around 1.5 million gallons per well , according to the EPA.
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Sorry, that’s incorrect.
The national average is around 1.5 million gallons per well , according to the EPA.
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Sorry, that’s incorrect.
The national average is around 1.5 million gallons per well , according to the EPA.
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Correct!
The national average is around 1.5 million gallons per well , according to the EPA.
Which source(s) of energy are not nuclear in origin?
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Sorry, that’s incorrect.
Tidal energy is gravitational in origin. Solar energy comes from nuclear reactions in the sun.
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Sorry, that’s incorrect.
Tidal energy is gravitational in origin. Geothermal energy comes from radioactive decay inside the earth.
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Correct!
Tidal energy is gravitational in origin. Solar energy comes from nuclear reactions in the sun, and geothermal energy comes from radioactive decay inside the earth.
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Sorry, that’s incorrect.
Tidal energy is gravitational in origin. Solar energy comes from nuclear reactions in the sun, and geothermal energy comes from radioactive decay inside the earth.
The consumption of energy worldwide is projected to rise by how much between 2013 and 2040?
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Sorry, that’s incorrect.
U.S. energy consumption is projected to rise 9% by 2040, or 0.3% per year, while global consumption will increase about 50% over the same period
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Sorry, that’s incorrect.
U.S. energy consumption is projected to rise 9% by 2040, or 0.3% per year, while global consumption will increase about 50% over the same period
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Sorry, that’s incorrect.
U.S. energy consumption is projected to rise 9% by 2040, or 0.3% per year, while global consumption will increase about 50% over the same period
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Sorry, that’s incorrect.
U.S. energy consumption is projected to rise 9% by 2040, or 0.3% per year, while global consumption will increase about 50% over the same period
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Correct!
U.S. energy consumption is projected to rise 9% by 2040, or 0.3% per year, while global consumption will increase about 50% over the same period
True or false? Hydraulic fracturing and horizontal drilling have increased oil and gas production in the U.S.
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Correct!
Extraction of "tight" oil—light crude oil contained in geological formations of shale or sandstone—accounted for only 12% of total U.S. oil production in 2008. By 2012, it made up 35%, and is predicted to rise to 50% in the near term.
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Sorry, that’s incorrect.
Extraction of "tight" oil—light crude oil contained in geological formations of shale or sandstone—accounted for only 12% of total U.S. oil production in 2008. By 2012, it made up 35%, and is predicted to rise to 50% in the near term.
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