CP3f Renewable Resources Flashcards
Renewable energy resources
Renewable energy resources are resources that will not run out
Most renewable energy resources do not cause p________ or emit c________ d_________ when used to generate electricity because no f_____ is b______.
pollution
carbon dioxide
fuel
burned
What advantage do almost all renewable resources have over fossil fuels for generating electricity?
They do not cause pollution or emit carbon dioxide
Solar cells convert solar energy directly into…
electrical energy
Solar energy can also be used to…
heat water for use in homes
Solar energy is not…
Available all the time
Hydroelectricity
Electricity is generated by falling water in places where water can be trapped in high reservoirs
As long as the reservoir does not dry up, hydroelectricity is…
always available
Unlike fossil fuelled power stations, hydroelectric stations can be…
started and stopped very quickly
Wind turbines generate electricity as long as…
the wind speed is not too slow or too fast
To produce the same amount of energy as a fossil fuelled power station…
a lot of wind turbines are needed
Tidal power can generate electricity when turbines in a huge dam across a river estuary turn as…
the tide flows in and out
Tidal power is not…
available all the time
There are not many places suitable for barrages (dams) in the UK as they…
may affect wildlife that live or feed on tidal mudflats
Bio fuels are made from
animal wastes, from plants or from waste wood
