APES Hydroelectric Power

What is a generator?

• A machine that creates radiation.

• A machine that converts one energy source into electrical energy.

• Only works with renewable energy.

• Only works with fossil fuels.

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What is one one disadvantage of hydroelectric energy?

• It doesn't work if you don't have volcanoes nearby.

• It doesn't work if it is not windy.

• It doesn't work if you don't have rivers or moving water nearby.

• It doesn't work unless you have plenty of fossil fuels.

Out of the choices below, which form of energy makes the most pollution?

• Hydroelectric

• Geothermal

• Fossil Fuels

• Wind Turbine

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An advantage of hydroelectric power station.

• It produces thermal pollution

• Only a few dams have been built

• They produce no carbon dioxide when making electricity

• They are cheap to build

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Water stored behind the dam is known as …………..

• Dam
• Penstock
• Water reservoir
• Spillway

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Used to increase the height of water level.

• Dam
• Penstock
• Water reservoir
• Spillway

What type of energy is being produced when a dam is placed across a river and water is released to turn a turbine that produces electricity?

• Wind
• Geothermal
• Hydroelectric 
• Solar

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Which of these hydroelectric dams has had a major impact on its surrounding ecosystems?

• Three Gorges Dam, China

• Grand Coulee Dam, WA USA

• Hoover Dam, NV USA

• All three have had a major impact on their surrounding ecosystems

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Which of the following is a Pro for hydroelectricity?

• It is renewable

• It is clean

• It is efficient

• All are Pros for hydroelectricity

Which of the following is a Con for hydroelectricity?

• Destroys habitat

• Decimates natural salmon migration routes

• Disturbs flooding cycles and nutrient deposition

• All are Cons for hydroelectricity

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