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Transcript of physics revision
they were formed millions of years ago AND MOST OF OUR ELECTRICTY COME FROM THEM. however fossil fuels are bad because they will one day run out and they produce CARBON DIOXIDE WHICH ADDS TO THE GREEN HOUSE EFFECT. THERE ARE OTHER FUEL WE CAN USE TO GET ELECTRICTY FOR EXAMPLE NUCLEAR POWER. WIND POWER. TIDAL WAVES OR GEOTHERMAL ENERGY. THESE SOURCES OF ENERGY ARE CALLED
RENEWABLE ENERGY BECUSE THEY WILL NEVER RUN OUT. BY KELSEY HUGHES HEAT CAN BE TRANSFERED BY... CONVECTION THROUGH LIQUIDS. CONDUCTION THROUGH SOLIDS AND RADIATION THROUH GASES. forms of energy names are most kids HATE LEARNING gcse ENERGY NAmes... most-magnetic kids- kenetic hate-heat learning-light g-gravity c-chemical s-sound e-electrical. energy-elastical names-nuclear energy is mesured using sanky diangrams. efficency is the amount of useful energy transered by a device the cost of electricty is calclated by using the formula power x time. thankyou for watching and i hope you pass your physics GCSE.