Wind Energy Quiz-PBS

What is the main purpose of modern wind turbines?

• Converting wind energy into electricity

• Pumping water

• Grinding grain

• Propelling sailboats

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What causes the rotation of the blades in a wind turbine?

• Magnetic force

• Solar energy

• Pressure difference on the blades

• Water flow

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Why is wind considered a renewable resource?

• It is always available

• It is easy to store

• It is cheap to harness

• It emits no greenhouse gases

What is a major challenge in using wind power more widely?

• The high cost of wind turbines

• The unpredictable nature of wind

• The lack of wind energy technology

• The abundance of wind energy

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Why are long transmission lines necessary for wind farms?

• To increase energy demand

• To move electricity to where it's needed

• To reduce greenhouse gas emissions

• To store excess electricity

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What is a disadvantage of wind power compared to existing coal and natural gas power plants?

• It is less efficient

• It emits more greenhouse gases

• It is more expensive to operate

• It is more harmful to the environment

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What percentage of the electricity produced in America is currently from wind power?

• 25%

• 15%

• 35%

• 5%

What do experts believe wind power could potentially do to fossil fuel consumption?

• Eliminate it completely

• Reduce it

• Increase it

• Have no impact on it

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What is a key factor that could make wind power cheaper and easier to use in the future?

• Reduced energy demand

• Increased wind farm locations

• Better ways to store electrical energy

• Improved wind turbine design

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What is the main reason many wind projects never get off the ground?

• Low demand for wind power

• Lack of government support

• High cost of building wind farms

• Lack of available wind energy

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