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- 1. Multiple Choice
What are the following devices called?
Mills
Converters
Weathervanes
Turbines
- 2. Multiple Choice
Place the following events in sequence: A) Persians use windmills to grind grain; B) Wind is used to power sailboats; C) Europeans develop windmills
A, C, B
B, A, C
C, B, A
A, B, C
- 3. Multiple Choice
How would an early Persian windmill compare to an early European windmill?
Persian windmill blades were vertical, like propellers, while European ones were horizontal, like egg-beaters
Persian windmill blades were horizontal, like eggbeaters, while European ones were vertical, like propellers
Persian windmills were made of discarded sails, while European windmills were made of wood
Persian windmills were made of stone, while European windmills were made of wood
- 4. Multiple Choice
What type of energy is torque?
Rational energy
potential energy
chemical energy
wind energy
- 5. Multiple Choice
What would be one easy way to increase the amount of torque a wind turbine produces?
Decrease the height of the turbine
Decrease the length of the rotor blades
Increase the height of the turbine
Increase the length of the rotor blades
- 6. Multiple Choice
Why is wind energy considered a renewable resource?
It can be harnessed by human beings.
It's related to the weather
It's unlikely that humans will run out of it anytime soon.
It can be used to generate electricity.
- 7. Multiple Choice
What is the best definition of a generator?
A device that measures wind speed.
A device that converts mechanical motion into electricity.
A device that conducts electrical current through a wire
A device that spins when exposed to wind.
- 8. Multiple Choice
If you visited a wind farm, what would you see?
Wind blowing crop seeds into the earth.
Several dozen wind turbines.
A geological formation where wind blows out of the ground.
A factory in which wind is produced by giant fans.
- 9. Multiple Choice
Compared to the amount of energy generated by fossil fuels, the amount of energy generated by wind in the United States is:
Meager/Little
Substantial/Enough
Equivalent
Gigantic
- 10. Multiple Choice
Which of the following is a drawback to wind energy?
Wind turbines can cause cancer among people who live near them.
Wind turbines can hurt flying animals
There aren't enough suitable sites in the U.S. to build wind farms
Wind turbines emit greenhouse gases.
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