Question 1

Which renewable resource supplies more electricity to the human population than any other single renewable resource?

Accepted Answer

A)  solar energy
B)  wind
C)  geothermal energy
D)  biomass
E)  hydropowerF) B) and C)
G) B) and E)

Question 2

Refer to Infographic 3.What is the correct order of the steps used to generate electricity in a wind turbine? I.Rotating blades turn a shaft inside the turbine.
II) A spinning generator produces electrical current.
III) Wind turns turbine blades.
IV) The shaft is attached to a higher-speed gear that turns the generator.

Accepted Answer

A)  I,III,IV,II
B)  I,II,III,IV
C)  III,II,I,IV
D)  III,I,IV,II
E)  II,IV,I,IIIF) None of the above
G) A) and D) D

Question 3

The president wants to know which type of renewable energy source supplies more electricity than any other single renewable resource.You tell him the answer is ________.

Accepted Answer

A)  hydroelectric
B)  solar
C)  biomass
D)  geothermalE) A) and D)
F) C) and D)

Question 4

What makes solar energy an unreliable energy source?

Accepted Answer

A)  Photovoltaic cells have a lot of moving parts that produce noise.
B)  Sunlight is intermittent,especially in high-latitude locations.
C)  It has expensive start-up costs.
D)  All of these answers are correct.
E)  Sunlight is intermittent and solar energy has expensive start-up costs.F) C) and D)
G) C) and E) E

Question 5

Which step costs money but has a quick payback time?

Accepted Answer

A)  turning off the computer when not in use
B)  replacing old light bulbs with energy-efficient LED bulbs
C)  replacing older windows with high efficiency windows
D)  lowering the thermostat on the water heater
E)  taking short showers instead of bathsF) A) and B)
G) A) and E)

Question 6

Science Literacy Use Infographic 2 to answer the next five questions. 
-How much electricity,in billion kWh,is hydroelectric power expected to generate in 2040?

Accepted Answer

A)  500
B)  400
C)  300
D)  100
E)  50F) B) and E)
G) A) and E)

Question 7

Why does a run-of-the-river hydroelectric system have less impact on aquatic systems than a giant dam?

Accepted Answer

A run-of-the-river hydroelectric system ...

Question 8

The people of Samsø discovered the best way to achieve energy independence is to____??________.

Accepted Answer

A)  use solar energy
B)  use wind energy
C)  conserve energy
D)  use geothermal energy
E)  buy electric carsF) C) and E)
G) A) and B)

Question 9

The earliest renewable energy source used by humans was ___________.

Accepted Answer

A)  biomass
B)  solar
C)  wind
D)  geothermal
E)  hydropowerF) B) and E)
G) A) and B)

Question 10

What is the relationship between the wind turbines and the automobiles used on Samsø?

Accepted Answer

A)  They drive only electric cars.
B)  They drive only cars produced on the island by wind power.
C)  The clean energy produced by the turbines offsets the fossil fuels used by the cars.
D)  The cars run on wind power.
E)  There is no relationship between the cars and the wind turbines.F) B) and C)
G) A) and B)

Question 11

In 2016,how much energy used by the human population came from renewable resources?

Accepted Answer

A)  3%
B)  9%
C)  15%
D)  25%
E)  40%F) A) and B)
G) D) and E)

Question 12

Which energy sources will see the biggest increases as costs decline for the technologies?

Accepted Answer

A)  wind and hydropower
B)  wind and solar
C)  solar and geothermal
D)  solar and hydropower
E)  hydropower and geothermalF) A) and D)
G) B) and D)

Question 13

For the residents of Samsø,one of the first conservation efforts revolved around ___________.

Accepted Answer

A)  cooling homes
B)  heating homes
C)  converting to electric cars
D)  using geothermal power
E)  using hydropowerF) B) and E)
G) A) and C) B

Question 14

What are the differences between active solar approaches and passive solar approaches?

Accepted Answer

Active solar technologies,such as photov...

Question 15

Turning off lights when you leave a room or switching to CFL or LED lighting is an effective conservation method because lighting usually accounts for ___________ of average home electrical costs.

Accepted Answer

A)  45%
B)  50%
C)  25%
D)  10%
E)  35%F) B) and C)
G) A) and E)

Question 16

What is an advantage of solar energy you would use in your talk?

Accepted Answer

A)  It is unpredictable and intermittent.
B)  It is effective at large and small scales.
C)  It has to be paired with other energy sources to meet needs.
D)  It is expensive compared to other renewable energy sources.E) A) and D)
F) B) and C)

Question 17

Why is the unit barrels of oil equivalents (BOE)used in examining energy patterns?

Accepted Answer

This unit allows for the comparison amon...

Question 18

How do geothermal power plants work?

Accepted Answer

A)  They actively move heat from underground into an overlying structure in order to remove or add heat to the structure.
B)  They utilize steam released from hydrothermal reservoirs to spin turbines and produce electricity.
C)  They use the heat from hot rocks located in earthquake zones to heat coal.
D)  They use heat from volcanic eruptions to boil water and create steam that can power a turbine.
E)  They funnel hot steam into people's homes so that it can be used as a heat source.F) B) and D)
G) A) and C)

Question 19

Explain why wind and water energy sources are considered an indirect form of solar energy.

Accepted Answer

Wind is considered an indirect form of s...

Question 20

Which of the following converts the energy of the Sun directly into heating?

Accepted Answer

A)  photovoltaic cells
B)  wind turbines
C)  biomass
D)  solar thermal systemsE) A) and B)
F) A) and C)

Exam 31: Sun, Wind, Water, and Earth Energy Fueled by the Sun

Which renewable resource supplies more electricity to the human population than any other single renewable resource?

Correct Answer
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Correct Answer
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D

The president wants to know which type of renewable energy source supplies more electricity than any other single renewable resource.You tell him the answer is ________.

Correct Answer
verified

What makes solar energy an unreliable energy source?

Correct Answer
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E

Which step costs money but has a quick payback time?

Correct Answer
verified

Science Literacy Use Infographic 2 to answer the next five questions. -How much electricity,in billion kWh,is hydroelectric power expected to generate in 2040?

Correct Answer
verified

Why does a run-of-the-river hydroelectric system have less impact on aquatic systems than a giant dam?

Correct Answer
verified
A run-of-the-river hydroelectric system ...
View Answer

The people of Samsø discovered the best way to achieve energy independence is to??____.

Correct Answer
verified

The earliest renewable energy source used by humans was ___________.

Correct Answer
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What is the relationship between the wind turbines and the automobiles used on Samsø?

Correct Answer
verified

In 2016,how much energy used by the human population came from renewable resources?

Correct Answer
verified

Which energy sources will see the biggest increases as costs decline for the technologies?

Correct Answer
verified

For the residents of Samsø,one of the first conservation efforts revolved around ___________.

Correct Answer
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B

What are the differences between active solar approaches and passive solar approaches?

Correct Answer
verified
Active solar technologies,such as photov...
View Answer

Turning off lights when you leave a room or switching to CFL or LED lighting is an effective conservation method because lighting usually accounts for ___________ of average home electrical costs.

Correct Answer
verified

What is an advantage of solar energy you would use in your talk?

Correct Answer
verified

Why is the unit barrels of oil equivalents (BOE)used in examining energy patterns?

Correct Answer
verified
This unit allows for the comparison amon...
View Answer

How do geothermal power plants work?

Correct Answer
verified

Explain why wind and water energy sources are considered an indirect form of solar energy.

Correct Answer
verified
Wind is considered an indirect form of s...
View Answer

Which of the following converts the energy of the Sun directly into heating?

Correct Answer
verified

Exam 31: Sun, Wind, Water, and Earth Energy Fueled by the Sun

Which renewable resource supplies more electricity to the human population than any other single renewable resource?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedD

The president wants to know which type of renewable energy source supplies more electricity than any other single renewable resource.You tell him the answer is ________.

Correct AnswerverifiedShow Answer

What makes solar energy an unreliable energy source?

Correct AnswerverifiedE

Which step costs money but has a quick payback time?

Correct AnswerverifiedShow Answer

Science Literacy Use Infographic 2 to answer the next five questions. -How much electricity,in billion kWh,is hydroelectric power expected to generate in 2040?

Correct AnswerverifiedShow Answer

Why does a run-of-the-river hydroelectric system have less impact on aquatic systems than a giant dam?

Correct AnswerverifiedA run-of-the-river hydroelectric system ...View AnswerShow Answer

The people of Samsø discovered the best way to achieve energy independence is to____??________.

Correct AnswerverifiedShow Answer

The earliest renewable energy source used by humans was ___________.

Correct AnswerverifiedShow Answer

What is the relationship between the wind turbines and the automobiles used on Samsø?

Correct AnswerverifiedShow Answer

In 2016,how much energy used by the human population came from renewable resources?

Correct AnswerverifiedShow Answer

Which energy sources will see the biggest increases as costs decline for the technologies?

Correct AnswerverifiedShow Answer

For the residents of Samsø,one of the first conservation efforts revolved around ___________.

Correct AnswerverifiedB

What are the differences between active solar approaches and passive solar approaches?

Correct AnswerverifiedActive solar technologies,such as photov...View AnswerShow Answer

Turning off lights when you leave a room or switching to CFL or LED lighting is an effective conservation method because lighting usually accounts for ___________ of average home electrical costs.

Correct AnswerverifiedShow Answer

What is an advantage of solar energy you would use in your talk?

Correct AnswerverifiedShow Answer

Why is the unit barrels of oil equivalents (BOE)used in examining energy patterns?

Correct AnswerverifiedThis unit allows for the comparison amon...View AnswerShow Answer

How do geothermal power plants work?

Correct AnswerverifiedShow Answer

Explain why wind and water energy sources are considered an indirect form of solar energy.

Correct AnswerverifiedWind is considered an indirect form of s...View AnswerShow Answer

Which of the following converts the energy of the Sun directly into heating?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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D

Correct Answer
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Correct Answer
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E

Correct Answer
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Correct Answer
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Correct Answer
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A run-of-the-river hydroelectric system ...
View Answer

The people of Samsø discovered the best way to achieve energy independence is to??____.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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B

Correct Answer
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Active solar technologies,such as photov...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
This unit allows for the comparison amon...
View Answer

Correct Answer
verified

Correct Answer
verified
Wind is considered an indirect form of s...
View Answer

Correct Answer
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