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- 1. Multiple Choice
What do wind turbines, hydro electric dams, and ethanol plants have in common
All produce electrical current without pollution
All use generators to produce electrical current
All convert gravitational potential energy to electric current
All convert thermal energy to electrical energy
- 2. Multiple Choice
Electric current is the flow of ______________________
electrons
protons
neutrons
both protons and neutrons
- 3. Multiple Choice
According to the Department of Energy website, all of the following are factors below affect the amount of SOLAR RADIATION (light energy) entering the Earth EXCEPT for one, which is it?
Geographic Location
Time of the Day
Local Landscape
Wind Speed
- 4. Multiple Choice
The "pressure" that pushes the electrons in a circuit is called the ____________________________________
voltage
current
resistance
power
- 5. Multiple Choice
_____________________ is the measurement of how many electrons are flowing in a point of a circuit.
voltage
current
resistance
power
- 6. Multiple Choice
Sunlight is made of bundles of radiant energy called
electrons
protons
neutrons
photons
- 7. Multiple Choice
The main material that is used in the production of photovoltaic cells is __________________
Carbon
Silicon
Uranium
Hydrogen
- 8. Multiple Choice
The branch of dynamics that deals with the motion of air and other gaseous fluids, and the forces acting in motion relative to such fluids.
aerodynamics
kinematics
mechanics
statics
- 9. Multiple Choice
The diagram above shows a wind turbine. Which section of the wind turbine converts wind energy to electrical energy?
blades
generator
rotor
pitch system
- 10. Multiple Choice
What causes the production of wind?
rotation of the Earth
variations in the Earth's atmosphere
the Sun heating the atmosphere
all of the above
- 11. Multiple Choice
How many blades does a modern wind turbine have?
2
3
4
There is no standard number of blades
- 12. Multiple Choice
Roughly how tall are most utility - scale wind turbine towers in the U.S.
65 meters (213 feet)
82 meters (269 feet)
114 meters (374 feet)
140 meters (460 feet)
- 13. Multiple Choice
Which U.S. state gets the highest percentage of its electricity from wind?
Iowa
Texas
Kansas
South Dakota
- 14. Multiple Choice
Which nation leads the world in installed wind energy?
The Netherlands
United States
China
Germany
- 15. Multiple Choice
How many jobs were supported by the U.S. wind power industry in 2016
55,000 jobs
36, 000 jobs
101, 000 jobs
73, 000 jobs
- 16. Multiple Choice
What wind speed is said to be necessary to make large wind energy systems economically viable?
6 m/s (13 mph)
3 m/s (12 mph)
9 m/s (20 mph)
12 m/s (27 mph)
- 17. Multiple Choice
Which U.S. state generates the most utility-scale solar power?
California
Texas
Arizona
Florida
- 18. Multiple Choice
The map below shows the annual average wind within the U.S. Which U.S. region is most likely to benefit from wind turbines?
Western region of the U.S.
Southern region of the U.S.
Midwest region of the U.S.
Northeast region of the U.S.
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