Physics Revision 3.0 / 5 based on 1 rating ? PhysicsOtherNone Created by: Jess WilmshurstCreated on: 06-03-13 17:57 what we call poor conductors insulators 1 of 23 *** much energy do gases have lots 2 of 23 how much energy does solids have not much 3 of 23 why is copper a good conductor because it has lots of ions with free electrons 4 of 23 oil, coal and gas are ... fossil fules 5 of 23 growing crops to make fossil fules biofuel 6 of 23 fossil fules produce this greenhouse gas carbon dioxide 7 of 23 what most appliances produce as wasted energy heat 8 of 23 energy from the earths hot rocks geothermal 9 of 23 the unit of energy joule 10 of 23 energy stored in fuels and food chemical 11 of 23 these cells convert sunlight to electricity solar 12 of 23 type of energy source that will never run out renewable 13 of 23 network cables transmitting electricity to homes and businesses national grid 14 of 23 what is evapouration when the particles in a liquid escapes to form a vapour 15 of 23 when is evaporation rapidly occuring at boiling point 16 of 23 the number of Joules in a 100 Watt bulb transfers in 10 seconds 1000 17 of 23 these materials are good conductors of heat metals 18 of 23 energy of moving electrons electricity 19 of 23 why is heated fluids less dense then cooler fluids the heated particles gain energy so spread out and take up more space 20 of 23 the time it takes for an energy saving improvement to pay for itself payback 21 of 23 what is a convection current heated particles rise and as they cool sink again 22 of 23 what materials have that make them good conductors free electrons 23 of 23
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