Unit 7 Energy

Fluorescent light bulbs use less energy than incandescent light bulbs use to produce the same amount of light. Despite this advantage, many people continue to use incandescent light bulbs. Which fact MOST likely causes some people to continue favoring incandescent light bulbs over fluorescent light bulbs?

• Fluorescent light bulbs last longer than incandescent light bulbs.

• Fluorescent light bulbs cost more to purchase than incandescent light bulbs.

• Fluorescent light bulbs cost less to operate than incandescent light bulbs

• Fluorescent light bulbs produce less heat than incandescent light bulbs.

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NGSS.MS-PS3-3

Which statement BEST explains why coal is used to generate electricity despite the amount of pollution produced by burning coal?

• Compared to other fuels, coal produces more energy per kilogram.

• Compared to other fuels, coal is relatively cheap and plentiful.

• Coal burns without producing greenhouse gases.

• Coal is a renewable source of energy.

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NGSS.HS-ETS1-3

Which of these statements BEST describes a possible environmental consequence in constructing a large-scale wind farm to generate electricity?

• Wind farms alter the regional climate.

• Wind farms can disrupt migrating wildlife.

• Wind farms use a renewable energy source.

• Wind farms generate direct current electricity.

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NGSS.MS-ESS3-3

NGSS.MS-LS2-4

Wind farms use turbines to generate electricity without using fossil fuels. What is one negative consequence of using wind turbines to generate electricity?

• Wind turbines change global weather patterns.

• Wind turbines produce excess carbon dioxide.

• Power is produced by wind farms using a nonrenewable resource.

• Developing and maintaining wind farms damages ecosystems.

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Students were investigating the advantages and disadvantages of solar power. According to the information in the chart, which statement describes an advantage of using fossil fuels over solar power?

• Fossil fuel stations require less maintenance than solar panels.

• Fossil fuels are less costly to obtain.

• Fossil fuels are an abundant renewable resource.

• Fossil fuels are available regardless of the weather.

Which action has the most immediate environmental impact?

• drilling for oil

• erecting a windmill

• setting up a turbine near a river

• creating a nuclear plant in an existing building

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NGSS.MS-ESS3-3

Which method of energy production is most likely to have a negative impact upon the environment?

• hydroelectric power plant

• coal-burning power plant

• wind turbine

• solar panel

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NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

Which form of energy production creates a radioactive waste product?

• coal combustion

• nuclear power

• wind turbines

• solar cells

A typical nuclear power plant uses about 113 million liters (30 million gallons) of ocean or river water per hour for cooling. The water does not contact the nuclear material. It is taken in and surrounds the reactor where it absorbs thermal energy. Some of the water is released as steam, and the rest is returned to the source. Which subsystems are MOST affected by this use of water?

• atmosphere, biosphere and lithosphere

• atmosphere, lithosphere and hydrosphere

• hydrosphere, biosphere and atmosphere

• hydrosphere, biosphere and lithosphere

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NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

Desalination removes salt from water. Removing salt from water can be risky because the process is expensive and slow. Sometimes the technology does not work. A beach community’s surface water and underground fresh water were decreasing. The community decided to construct a large-scale plant to remove salt from the bay water. The plan to construct a salt-removing plant was accepted because the community

• needed increased resources

• had access to advanced technology

• had unlimited financial resources

• needed to ease social pressures

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NGSS.MS-ETS1-1

NGSS.MS-ESS3-4