Hydropower | Tidal & Wave Power | Wind Power | |
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What is the most common way to harness hydroelectric energy?
Dams
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What energy is captured for wind and tidal power?
Kinetic Energy
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What is the most common way to harness wind energy?
Wind turbines
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How is energy generated in a dam?
Water that rushes in from its reservoir spins a turbine, which then generates energy.
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How is the energy generated?
By pushing water through the turbines.
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Where are wind turbines most commonly found?
Vast open fields and farms
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Name 3 advantages of relying on hydroelectric power.
Can name any 3:
1. affordable 2. low CO2 emissions 3. low air pollution in temperate areas 4. large global untapped potential 5. medium/high net energy |
What is one advantage of tidal power that wave power doesn't have?
The tides are predictable allowing for a constant energy source.
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How is energy generated in a wind turbine?
Wind blows blades that are connected to a drive shaft that turns a generator, generating power.
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Name 3 disadvantages of building dams.
Could name any 3:
1. reservoirs emit methane from decomposing organic matter 2. dams become unusable after silt builds up in its reservoir 3. displaces communities 4. disrupts downstream ecosystems |
What country has the biggest tidal/wave power plant?
South Korea
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Name three advantages of wind turbines?
1. Low carbon dioxide emissions
2. Low air pollution 3. Perpetual (inexhaustible) 4. Efficient use of landscape 5. Low operating costs 6. More efficient than coal |
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What is biofouling?
The accumulation of plants, algae, and small animals on structures underwater.
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Name all four disadvantages of wind turbines
1. Expensive upfront cost
2. Unpredictable 3. Noise and visual pollution 4. Harms a lot of birds |
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