Electricity Basics

What is electricity?

• flow of electrons

• flow of copper atoms

• light

• movement of air

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How does a generator produce electricity?

• a copper coil spins inside a magnet

• light shines on copper wire

• water boils inside of it

• a magnet crushes a copper wire

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Which of the following energy sources are fossil fuels? (Choose 3)

• coal

• oil (petroleum)

• natural gas

• uranium (nuclear)

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Which of the following energy sources are renewable? (Choose 2)

• solar

• coal

• biomass

• uranium (nuclear)

What causes a turbine to spin inside of most power plants?

• steam

• light

• magnets

• copper wire

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What energy conversion occurs when a fuel, such as coal, is burned in a power plant and used to heat water?

• chemical to thermal

• mechanical to electrical

• thermal to mechanical

• mechanical to chemical

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What energy conversion occurs when heat is used to turn water to steam, which is used to spin the turbine?

• chemical to thermal

• mechanical to electrical

• thermal to mechanical

• mechanical to chemical

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What energy conversion occurs when a copper coil inside of the generator spins to produce electricity?

• chemical to thermal

• mechanical to electrical

• thermal to mechanical

• mechanical to chemical

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During which process is a source of energy used to produce electricity?

• generation

• transmission

• distribution

• electrocution

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Which of the following are the benefits of using a "smart grid"? (Choose 3)

• It helps utility companies find and fix damaged power lines.

• It tells the power company where more electricity is needed.

• It helps utilities be more efficient.

• It restricts the amount of electricity customers can use.

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