80208
Descrição
Mapa Mental por Ben Leader, atualizado more than 1 year ago
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Criado por Ben Leader
mais de 11 anos atrás
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Heat and Transfer
- Thermal energy
- Expands a material, particles vibrate.
- The more thermal energy the hotter the item.
- Every living organism
gives off heat,
therefore it gives
thermal energy off.
- Expands a material, particles vibrate.
- Convection
- Cold air sinks, warm air rises.
- Goes round clock-wise.
- Takes place in liquids and gases
- Cold air sinks, warm air rises.
- Changing State
- When changing state, for example
solid to liquid, the temperature
stays the same during the
changing because the energy is
being used for the changing
process.
- When changing state, for example
solid to liquid, the temperature
stays the same during the
changing because the energy is
being used for the changing
process.
- Infared Radiation
- Emits heat through empty space
- Does not require the movement of particles.
- Emits heat through empty space
- Conduction
- Most metals are good heat
conductors because the particles
are close together so they vibrate
quickly and harshly
- Most other materials are not very good conductors
- When particles are not so
close together, like in gases,
conduction becomes very
hard and doesn't occur very
effectively.
- Most metals are good heat
conductors because the particles
are close together so they vibrate
quickly and harshly
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