Understanding Energy Sources and Uses

What is the main function of a generator in a power plant?

• To store electricity

• To produce electric current

• To burn fuels

• To cool down turbines

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Which of the following is a renewable energy source?

• Coal

• Oil

• Wind

• Natural gas

Why are power plants often located near coal mines?

• To reduce air pollution

• To have easy access to coal

• To be closer to cities

• To use less water

What is the role of a turbine in a generator?

• To store energy

• To spin a rod and produce electric current

• To cool down the generator

• To burn fuels

Which of the following is a disadvantage of using a dam for energy?

• It produces air pollution

• It causes habitat loss

• It uses nonrenewable resources

• It cannot be replaced

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What happens when a magnet moves near a coil of wire in a generator?

• The wire heats up

• Electric charges flow

• The magnet loses its power

• The generator stops working

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Why is wind considered a renewable resource?

• It is found underground

• It can be used up quickly

• It does not get used up

• It is made from ancient remains

What is a nonrenewable resource?

• A resource that can be replaced quickly

• A resource that cannot be replaced as quickly as it is used

• A resource that is always available

• A resource that is made from sunlight

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How do power plants that burn fuels affect the environment?

• They produce clean water

• They create air pollution

• They increase plant growth

• They reduce noise pollution

What is the main reason cities and towns need a large amount of energy?

• They have many farms

• They have lots of people

• They are close to power plants

• They have many rivers