Ch.10 Wind Energy

Question 0

Is wind energy a renewable source of energy?

Answer 0

Yes

Question 1

What is wind energy?

Answer 1

Energy obtained from wind

Question 2

What causes wind to blow?

Answer 2

Uneven heating of the earths surface, irregularities of the earths surface, and rotation of the earth.

Question 3

• average wind speeds vary with geography and topography.
• higher in flat areas such as ocean or in plains than in hilly or mountain areas.
• jet stream at high altitudes has continuous wind speeds of over 100 mph.

Answer 3

• Equatorial regions heat up more than polar regions.
• Dry land heats up and cools off more quickly than bodies of water.
• low elevations hear up more than high elevations.

Question 4

What are primary uses of wind energy?

Answer 4

Ventilation, sailing, pumping water, grinding grain and generating electricity.

Question 5

What is a jib sail?

Answer 5

A sail in the front of the ship used to control the ships direction.

Question 6

What is a wind machine or windmill?

Answer 6

A wheel like structure, mounted on a tower, with blades angled to catch the wind, causing it to spin.

Question 7

What is a turbine?

Answer 7

A wind machine to generate electricity

Question 8

Anemometer?

Answer 8

Measures wind speed

Question 9

Blades?

Answer 9

Minimum of two blades up to 300 feet long.

Question 10

Wind vane

Answer 10

Measures wind direction and transmits information to a yaw drive, which adjusts the orientation of the blades to the wind.