P3 Eenrgy Resources Flashcards
What is a biofuel
Any fuel taken from living ot recently living organisms
Examples of renewable energy sources
Biofuel and nuclear power
How are energy demands met today
Burning coal, oil and gas
What is used as the fuel in nuclear power stations
Uranium or plutonium
What is a wind turbine
An electricity generator on top of a tall tower which is powered by wind
How do waves generate electricity
Turning a floating generator
How are hydroelectricity generators turned
By water running down hill
How does a tidal power station work
It traps each high tide and uses it to turn generators
What are solar cells and what do they do
Flat solid cells and yse the sun’s energy to generate electricity direct,y
What do solar heating panels work
They use the sun’s energy to heat water directly
Where does geothermal energy come from
The energy transferred by radioactive substances deep inside the Earth
What do nuclear fuels produce
Radioactive waste
Negative impacts of fossil fuels
Increased levels of greenhouse gases, which could cause global warming
Reliability problems with hydroelectric power
Upland reservoir run dry
Reliability problems with wind and wave energy
Wind and waves too weak on very calm days
