10 Big Questions from KW

What is the main source of electricity in the U.S.?

• Wind

• Coal and natural gas

• Solar

• Hydropower

What device is used to generate electricity?

• Battery

• Generator

• Wind turbine

• Solar panel

How does electricity travel from power plants to homes?

• Through underground rivers

• By power lines and transformers

• By trucks delivering batteries

• Using wind currents

What unit is used to measure electrical energy?

• Watts

• Volts

• Joules

• Kilowatt-hours

What is the difference between power and energy?

• Energy is used instantly, while power is stored

• Power is the rate of energy use

• They are the same thing

• Power is measured in gallons

How can we reduce electricity usage at home?

• Keep lights on all the time

• Use energy-efficient appliances

• Open windows in winter

• Use more electronics

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What is climate change?

• When the weather changes daily

• A long-term change in Earth’s temperature

• A new type of storm

• A change in air pressure

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How does wind power help the environment?

• It releases less pollution

• It uses less water than fossil fuels

• It provides renewable energy

• All of the above

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What is one challenge of using only clean energy?

• The sun doesn’t always shine

• Wind turbines use too much gas

• It is more expensive than coal

• It doesn’t help the environment

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What is a wind turbine used for?

• Creating rain

• Generating electricity

• Making the wind stronger

• Heating homes

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