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36 Cards in this Set
- Front
- Back
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What are the non renewable energy resources |
1. Coal 2. Oil 3. Natural gas 4. Nuclear |
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How do fossil field use steam to drive a turbine |
1. Fossil fuel burns gives to thermal energy by heating 2. Water boils to steam drives turbine (mechanically to kinetic store) 3. Generator produces electric current, transfers energy electrical and by national grid |
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Advantage of fossil fuels |
1. Releases lots of energy cheaply 2. Doesn't rely on weather so reliable 3. No need to spend money on new tech, already have them |
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disadvantages of fossil fuels |
1. Release carbon dioxide, global warming 2. Acid rain, impact on aquatic wildlife 3. Going to run out |
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Explain how nuclear reactor works with heat and steam |
Same as other but uranium produces heat to make steam to drive turbines |
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Explain nuclear reactor energy transfers and changes |
Nuclear to thermal by heating, mechanically to kinetic then by electricity to national grid |
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What's difference between nuclear reactor and fossil fuel station |
Xpensive to build and maintain, longer to start up
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What do you have to do to the uranium before in nuclear reactor |
Process it, causes pollution, risk of radioactive leak |
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Advantages of nuclear? |
1. No greenhouse gas 2. Lots of energy for little put in 3. Lots of uranium left |
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How does geo thermal work |
Only works in certain geographical areas Pumped in pipes to hot rocks, forced back up bc pressure, turns turbine, drives generator |
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What are energy transfers in geo thermal |
Thermal store to kinetic store to generate electricity |
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Adv of geothermal |
1. Free 2. Renewable 3. No environmental problems |
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Disadv of geothermal
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1. Cost of drilling down 2. Cost of building plant, high comppared to amount of energy |
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How do wind turbines work |
Put them up in open space Wind turns turbines with generator |
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Energy transfers in wind turbines? |
Kinetic of air to generate electricity |
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Adv of wind turbine |
1. Cheap 2 run 2. No waste 3. Renewable |
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Disadv of wind turbine |
1. Spoiled view 2. Low energy output 3. Very loud 4. Only work in wind 5. Expensive to set up |
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How does wave power work |
Wave converters around coast, up and down motion used to drive generator |
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Energy transfers in wave power? |
Kinetic store of waves to kinetic store of turbine to generate electricity |
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Advtantage of wave power |
No pollution Renewable Initial costs high Not for large scale |
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Disadvantage of wave power
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Spoiled view Hazard to boats Unreliable No fuel costs |
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Explain solar power |
Energy from sun to generate electricity Make DC electricity |
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Adv of solar energy |
Renewable No pollution No views ruined |
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Disadv of solar |
Xpensive to setup Only work in sun Powers only individual homes |
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Whats a solar water heating panel |
Glass lets solar energy in, absorbed by black pipes to heat water, small scale prod |
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How can you cook with solar power |
Curved mirror, focus sun's light. Unreliable need strong sun rays |
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What are tidal barrages |
Dam with turbine in them, water comes in then is let out, moves turbines with it |
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Energy transfers in tidal barrage |
Kinetic of water to kinetic of turbine |
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Adv of tidal barrage |
No pollution Reliable Minimal running cost |
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Disadv of tidal barrage |
Prevent boat access Destroys habitat Spoils view |
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How does hydro electricity work (dam) |
Flood valley with dam, rainwater caught, let out through turbines |
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Energy transfer in hydro electricity (dam) |
GPE store of water to kinetic |
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Adv of hydro electricity (dam) |
Renewable No pollution IMMEDIATE RESPONSE |
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Disadv of hydro electricity (dam) |
Rotting vegetation CO2 Loss habitat If dry up look bad |
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How does pumped up storage work to keep energy |
Night electricity pumps water to higher reservoir Released quick at peak demand |
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Energy transfers in pumped up storage |
energy back to waters gpe |
