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GCSE C21 P3

GCSE C21 P3 Unscramble

energy source Can be used for energy!
power station They generate electricity here.
thermal power station They generate electricity using steam to drive a turbine.
social impact The effect on society.
environmental impact The effect on the environment.
efficiency Useful energy output / total energy supplied
carbon footprint CO2 emissions.
power Energy transferred per second.
energy Measured in joules or kilowatt-hours.
demand How much power we want.
primary source e.g. fossil fuels, solar, etc - can be used to generate electricity
secondary source e.g. electricity - we use a primary energy source to generate this
fossil fuel 3 fuels - coal, natural gas, crude oil.
domestic Relating to the home / household.
Sankey diagram shows energy flow through a process / device
generator Spin this to make electricity.
voltage Use current and this to calculate electrical power.
turbine Can be driven by steam, water or wind. They make this spin.
wave Energy source - only from the sea.
wind Energy source - can be on land or in the sea.
hydroelectric Energy source - uses water flowing down from high mountains.
nuclear Energy source - produces radioactive waste.
thermal 'heat' energy
biofuel Energy source - can be grown, might be plant or animal waste.
solar Energy source - from the Sun.
geothermal Energy source - pump water down into the rocks to make steam.
tidal Energy source - works twice each day.
power output How many watts (kilowatts, megawatts etc) a power station can produce.
lifetime How long a power station can usefully work.
security of supply We don't want to have no energy!
joule Standard unit for ENERGY.
kilowatt-hour A large unit for ENERGY.
second Standard unit for TIME.
hour A large unit for TIME.
watt Standard unit for POWER.
kilowatt A large unit for POWER.
amps / amperes Standard unit for CURRENT.
volts Standard unit for VOLTAGE or POTENTIAL DIFFERENCE.
radioactive waste Risk related to nuclear power stations.
radioactive Gives out radiation from its nucleus.
ionising Can damage molecules (including DNA).
contamination If a radioactive material comes into contact with a person of their clothing.
irradiation When a person is exposed to ionising radiation.
risk Might be harmful.
benefit The good that comes from something.
perceived risk How dangerous people THINK it might be.
calculated risk How dangerous something is, based on statistical / scientific evidence.
waste Unwanted left over.
boiler In a thermal power station, where water is turned into steam.
Created by: allydavies on 2014-01-19



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