Energy sources and power stations Flashcards
How many types of energy sources are there?
12
What 2 categories do energy resources come under?
Renewable
Non-renewable
What will happen to non-renewable resources?
Run out
What are the non-renewable resources?
Coal
Oil
Natural gas
Nuclear fuels
What are the 2 nuclear fuels?
Uranium
Plutonium
What 3 things do non-renewable resources do?
Run out
Damage the environment
provide most our energy
What are the renewable resources?
Wind Waves Tides Hydroelectric Solar Geothermal Food Biofuels
What 3 things will renewable resources do?
Never run out
Do damage the environment but not as bad
Do not provide much energy
Why are energy sources burned?
To drive turbines in power station
How is most of the electricity generated?
In big power stations
From non-renewable sources of energy
What are the features of a power station?
Fossil fuels burned to convert its stored chemical energy into heat energy
Heat energy used to heat water or air to produce steam
Steam turns a turbine converting heat to kinetic
Turbine connected to generator which transfers kinetic into electrical energy
What are nuclear reactors?
Boilers
How does a nuclear reactor work?
Nuclear fission of uranium or plutonium produces heat
Makes steam to drive turbines
What power station takes the longest to start up?
Nuclear power stations
What power station takes the shortest time to start up?
Natural gas
