Wind Power Quiz - by Tr Shweyee

What is the main purpose of modern wind turbines?

• Heat homes with oil

• Pump water for cattle

• Generate electricity

• Power cities with gas

Where is the wind farm located in the California desert?

• Next to tall mountains

• Next to a river

• In a valley

• In a forest

How do wind turbine blades work?

• By emitting sound waves

• By spinning due to uneven air pressure

• By capturing rainwater

• By absorbing sunlight

What is the purpose of the weather vane on top of the wind turbine?

• To measure temperature

• To keep the turbine turned into the wind

• To play music

• To attract birds

Why are wind turbines built so tall?

• To be closer to the ground

• To provide shade for animals

• To capture more wind energy

• To hide from view

How many homes can a small wind farm in Wyoming power?

• 100 homes

• 1,000 homes

• 9,000 homes

• 90,000 homes

What is the purpose of the rotor shaft in a wind turbine?

• To generate electricity directly

• To increase the rotation speed

• To store excess energy

• To slow down the rotation

What is the speed at which a generator can produce electricity in a wind turbine?

• 180 revolutions per minute

• 18 revolutions per minute

• 1,800 revolutions per minute

• 18,000 revolutions per minute

What is the shape of a wind turbine blade similar to?

• A car tire

• A boat sail

• A bicycle wheel

• An airplane wing

What is the function of the gears in a wind turbine?

• To decrease electricity production

• To slow down the rotation

• To increase the rotation speed

• To stop the turbine