BrainPop Wind Energy**

What are the following devices called?

• Mills

• Converters

• Turbines

Why is wind energy considered a renewable resource?

• It can be harnessed by human beings.

• It can be used to generate electricity.

• It's unlikely that humans will run out of it anytime soon.

What is the best definition of a generator?

• A device that measures wind speed.

• A device that converts motion into electricity.

• A device that carries electrical current through a wire

Place the following events in sequence: A) Persians use windmills to grind grain; B) Egyptians used wind to power sailboats; C) Europeans develop windmills

• A, C, B

• B, A, C

• C, B, A

The United States is the 2nd highest producer of wind energy in the world.

• True

• False

If you visited a wind farm, what would you see?

• A factory in which wind is produced by giant fans.

• Several dozen wind turbines.

• A geological formation where wind blows out of the ground.

Compared to the amount of energy generated by fossil fuels, the amount of energy generated by wind in the United States is:

• Miniscule/Little

• Gigantic/Larger

• Equivalent/Equal

Which of the following is a disadvantage to wind energy?

• Wind turbines can cause cancer among people who live near them.

• Wind turbines can hurt flying animals

• Wind turbines cause pollution

Which is not a factor in creating the amount of torque (rotational energy)?

• air density

• length of blades

• wind speed

• weight of generator

Early windmills were used for grinding grain and getting water from wells.

• True

• False