Energy Resources Review

Carson’s class visited a hydroelectric plant on a field trip during their study of energy. The process interested him, and he had the chance to observe it in action. Which of the following explains how moving water generates electrical power?

• The moving water spins the blades of a turbine which generate electricity.

• The moving water flows faster and slower to generate electricity.

• The moving water stays still to generate electricity.

• The moving water freezes to generate electricity.

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How do the two main kinds of natural resources compare when considering the energy sector?

• Renewable energy sources like solar and wind cannot be replaced, while nonrenewable sources like coal and oil can be replaced.

• Renewable energy sources such as wind and solar are unlimited, while nonrenewable sources such as coal and oil are limited.

• Both renewable and nonrenewable energy sources are sustainable for the energy sector.

• Renewable energy sources are man-made, while nonrenewable energy sources like coal and oil are naturally occurring.

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Ben's family currently uses city electricity, and their power comes from a coal burning power plant. What problems come from using fossil fuels? Choose the two that apply.

• burns very hot

• nonrenewable

• contributes to greenhouse effect

• initial cost is expensive

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Nuclear power is a nonrenewable energy resource. It is used to provide 20 percent of the electricity in the United States. How is nuclear energy harnessed to produce electricity?

• nuclear fission

• nuclear fusion

• combustion

• nuclear power plants

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Imagine a small island nation is transitioning to alternative energy sources to combat climate change. However, even with advances in technology, these alternative energy sources still have some limitations. What limitations might affect the adoption of alternative energy sources in this scenario? Choose the three that apply.

• cannot be used everywhere

• cannot generate energy in large enough amounts

• can be costly to set up initially

• are difficult to use

• affect habitats

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In the context of renewable energy sources, which one does not derive its initial energy from the sun?

• Hydroelectric power

• Geothermal energy

• Bioenergy

• Solar energy

Mia’s family added a sunroom onto their house several years ago, which reduced their electric bill. They were pleased with the difference. Then they decided to add three solar panels to reduce costs further. Passive solar heat depends on sunlight passing through glass. Active solar power comes as a result of a ___________________ that converts the energy.

• battery

• glass

• solar cell

• technology

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Imagine you're trying to reduce your household's energy consumption. Which of the following actions would contribute to energy conservation rather than waste?

• Turning off lights when not in use

• Leaving the tap open while brushing your teeth

• Sharing a ride with a friend to work

• Wearing warmer clothes instead of turning up the heating

• Hand washing dishes instead of using a dishwasher

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Which is a renewable energy resource?

• uranium

• natural gas

• biomass fuel

• coal

What is one disadvantage of using nuclear energy?

• nuclear energy produces radioactive wastes

• nuclear power plants cause much air pollution

• fission generates only small amounts of energy