Energy resources (Edexcel GCSE Physics): Flashcards
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Two main categories of energy resources
Two main categories of energy resources
Non-renewable and Renewable
Define non-renewable energy resources
Define non-renewable energy resources
Will run out & cannot be replenished once used
Examples of non-renewable energy resources
Examples of non-renewable energy resources
Fossil fuels (coal, oil, gas) & nuclear fuel
How long did fossil fuels take to form?
How long did fossil fuels take to form?
Millions of years
Cost advantage of fossil fuels
Cost advantage of fossil fuels
Cheap to extract, cheap to build & run plants
Gas from burning fossil fuels causing global warming
Gas from burning fossil fuels causing global warming
Carbon dioxide ()
Gas from coal/oil that causes acid rain
Gas from coal/oil that causes acid rain
Sulphur dioxide ()
Waste product from nuclear power
Waste product from nuclear power
Radioactive waste
Define renewable energy resources
Define renewable energy resources
Sources that will never run out
5 examples of renewable energy resources
5 examples of renewable energy resources
Bio-fuels, wind, solar, hydroelectric, tidal
Why renewables won't run out
Why renewables won't run out
Naturally replenished
Environmental benefit of renewables
Environmental benefit of renewables
Less harmful; no greenhouse gases from solar/wind
Why are renewables unreliable?
Why are renewables unreliable?
Dependent on weather conditions
Energy output disadvantage of renewables
Energy output disadvantage of renewables
Lower output; less effective for large-scale demands
How does acid rain form?
How does acid rain form?
reacts with water vapour in atmosphere