
What You Need To Know About Energy
What do you know about energy?
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.
Since the beginning of the industrial revolution, about how much have atmospheric carbon dioxide concentrations increased?
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Correct!
CO2 concentration in the atmosphere has risen about 43% since the beginning of the industrial revolution in the mid-eighteenth century-half of that since 1980
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Sorry, that’s incorrect.
CO2 concentration in the atmosphere has risen about 43% since the beginning of the industrial revolution in the mid-eighteenth century-half of that since 1980
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Sorry, that’s incorrect.
CO2 concentration in the atmosphere has risen about 43% since the beginning of the industrial revolution in the mid-eighteenth century-half of that since 1980
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Sorry, that’s incorrect.
CO2 concentration in the atmosphere has risen about 43% since the beginning of the industrial revolution in the mid-eighteenth century-half of that since 1980
On average, which is most efficient in coverting heat into electic power?
- Coal boiler power plant
- Natural gas-fired turbine power plant
- Natural gas combined-cycle power plant
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Sorry, that’s incorrect.
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
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Sorry, that’s incorrect.
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
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Correct!
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
What is a major reason that the U.S. is exporting more oil in 2014 than in 2005?
- More miles driven in vehicles
- More horizontal drilling
- Less oil available on the world market
- Hydraulic fracturing of tight oil formations
- B and D
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Correct!
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
What percentage of harvested corn was used to produce ethanol in the U.S. in 2014?
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Sorry, that’s incorrect.
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
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Sorry, that’s incorrect.
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
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Correct!
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
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Sorry, that’s incorrect.
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
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Sorry, that’s incorrect.
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
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Sorry, that’s incorrect.
In 2014, about 38% of harvested corn in the US went to make ethanol and its associated coproducts
Combustion of gasoline and diesel fuel emits which of the following?
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Correct!
All of the above are emitted by vehicles running on gasoline and diesel fuel.
Refrigerators became 70% more efficient between 1972 and 2001, primarily due to regulation. What is a market response to increased efficiency of refrigerators?
- People use their refrigerator more hours in the day.
- People use their refrigerator fewer hours in the day.
- People keep more refrigerators in their house.
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Sorry, that’s incorrect.
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
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Sorry, that’s incorrect.
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
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Correct!
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
In 2014, approximately how much of the oil used in the U.S. was imported?
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Sorry, that’s incorrect.
The United States imported approximately 27% of its oil. More than one-third of that came from Canada.
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Correct!
The United States imported approximately 27% of its oil. More than one-third of that came from Canada.
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Sorry, that’s incorrect.
The United States imported approximately 27% of its oil. More than one-third of that came from Canada.
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Sorry, that’s incorrect.
The United States imported approximately 27% of its oil. More than one-third of that came from Canada.
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
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- Kilowatt Hour (kWh)
A unit of measure for energy, typically applied to electricity usage. It is equal to the amount of energy used at a rate of 1000 watts over the course of one hour. One kWh is roughly equal to 3,412 British Thermal Units (Btu).