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14-15 Spring Semester Exam-Part 2

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1.
1 point
An artificial lake - like Flaming Gorge is a _____________.
2.
1 point
As people discovered centuries ago, the flow of water represents a huge
supply of ______________ that can be put to work.
3.
1 point
One advantage of a geothermal exchange system is that it doesn't have to manufacture heat. The heat is free, renewable, and readily available in the ground.
4.
1 point
When energy is produced from the temperature differences between deep water and shallow water.
5.
1 point
Passive solar houses are built with their windows facing south, so sunlight can enter into the house.
6.
1 point
About 15 percent of the sun’s energy that hits the earth is reflected back into space, about 30 percent evaporate water, some solar is absorbed by plants, land, and oceans, and the rest is used for sun tanning.
7.
1 point
_________________ are used to release excess water.
8.
1 point
This term means power from water.
9.
1 point
Only one part in two billion of the energy radiated by the sun into space strikes the earth.
10.
1 point
One of the biggest advantages to hydropower is its ability to store energy - water (energy) can be stored in a reservoir to be used at high demand periods.
11.
1 point
The distance from the highest level of the dammed water to the point where it goes through the turbine - the height of the water.
12.
1 point
Solar energy is non-renewable.
13.
1 point
Many ancient peoples, including the Romans, Chinese, and Native Americans, used hot mineral springs for bathing, cooking, and heating.
14.
1 point
Solar can be used to heat homes but can not produce electricity.
15.
1 point
Operating and maintenance costs for geothermal power plants are higher than coal-fired and natural gas plants.
16.
1 point
In the 1940’s hydropower provided 33% of the country’s electricity.
17.
1 point
Active solar homes use equipment like pumps and blowers and an outside source of energy like a solar collectors to heat the house.
18.
1 point
Geothermal systems are low maintenance and should last half as long as conventional systems.
19.
1 point
Solar can be used to heat homes but can not produce electricity.
20.
1 point
The first hydroelectric plant was Niagara Falls.
21.
1 point
This word means water.
22.
1 point
A ________ allows incoming flood tide to pass into an inlet - a one way gate.
23.
1 point
The hydrogen atoms in the sun’s core combine to form helium and generate energy in a process called nuclear fusion.
24.
1 point
A low dam that is built across an ocean inlet - used for tidal energy.
25.
1 point
Photovoltaic cells (PV) convert only about 10 to 20 percent of the radiant energy into electricity - fossil fuels convert from 30 to 40 percent of their energy into electricity.
26.
1 point
Generating electricity with hydropower is the most expensive way to generate electricity in the U.S. because the fuel supply (water) is never available.
27.
1 point
There are about 25 million kilowatts of conventional hydro generating capacity in the United States. That is equivalent to the generating capacity of 35 large nuclear power plants.
28.
1 point
Just like coal, oil, and nuclear power plants, hydropower plants produce heat to spin a turbine.
29.
1 point
Development of geothermal power plants is often allowed on federal lands because it does not significantly harm the environment.
30.
1 point
As long as the water cycle continues, we won’t run out of hydropower so it is considered a renewable energy source.
31.
1 point
How much water moves through the system is __________.
32.
1 point
Most geothermal power plants are flash steam plants.
33.
1 point
Hybrid Solar Systems combine passive solar and active solar to collect the suns energy.
34.
1 point
The cost per kilowatt-hour to produce electricity from PV cells is currently three times as expensive as other conventional sources.
35.
1 point
Tidal Energy, wave energy, and ocean thermal energy conversion are other hydro resources.
36.
1 point
The matter lost during nuclear fusion on the sun is emitted into space as radiant energy.
37.
1 point
A pipe leading to the turbine which supplies water.
38.
1 point
There are about 25 million kilowatts of conventional hydro generating capacity in the United States. That is equivalent to the generating capacity of 35 large nuclear power plants.
39.
1 point
The sun radiates more energy in one second than people have used since the beginning of time.
40.
1 point
A _________ uses the Earth’s constant temperatures to heat and cool buildings.
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