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93059
Moving heat
Description
GCSE Physics Mind Map on Moving heat, created by libby.holgate on 16/05/2013.
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physics
physics
gcse
Mind Map by
libby.holgate
, updated more than 1 year ago
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Created by
libby.holgate
over 11 years ago
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Resource summary
Moving heat
Conductors- transfer energy through them. ie. copper pan, stone floors.
Insulators- keep energy in. ie- wooly jumpers, cotton wool, loft insulation.
People are colder in the sea water because the water conducts the heat from the body
heat transfer
when two places are the same temperature there are no more heat transfers
Heat (thermal energy) always moves from hot places to cold places
convection
happens in liquid and gasses
when liquids/ gasses get hot they become less dense
this makes them lighter than the surrounding liquid/ gas so the hot liquid/ gas rises. the cold liquid/ gas then sinks to take its place.
this creates a convection current
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