Physics 3
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Wind power
Each has a generator, blades rotate to produce energy
Pros of wind turbines
No pollution No perminate damage to area Low cost
Cons of wind turbines
Expensive Has to have wind Spoil view Noisy
Solar cells
Solar panel
Pro’s of solar cells
No pollution Low running cost Reliable
Con’s of solar cell
No energy at night Cost a lot Can’t increase amount energy produced
Geothermal power
Generate electricity from decay of radioactive elements underground ( volcano or hot rock)
Pros of geothermal power
Doesn’t depend on weather Little environmental damage
Cons of geothermal power
Expensive Have to be near by volcanic activity
Hydrochloric- electric power
Using dams , water flows through turbine ( wheel ) to make energy
Pros for hydro-electric power
No pollution Low costs Amount of electricity created can be controlled
Wave power
Wave made by wind, turbines underwater make energy
Pros of wave turbines
No pollution Always producing No fuel costs Good for islands( with coast lines)
Cons of wave power
Salt water damages metal Impacts sea life Maintenance is hard and costs a lot Spoils view
Tidal barrage
Big dam across end of river, as tide comes in gate opens water comes in, then shuts, then let out through turbine
Pro of tidal barrage
No pollution Never stops producing Low costs to run
Cons of tidal barrage
Block boat and cargo Change wildlife Ugly spoils view Aren’t many good places to put
Bio fuels
Dead Plant matter and animal poo is burnt
Pros of biofuel
Fairly reliable Continuously produced Can control amount produced
Burning of fossil fuels
-burn fuel to heat up water - steam rises Turns turiness Generator converts energy to electrical energy -