thermal radiation

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what is thermal radiation?
heat transfer via infra-red ray
what kind of heat transfer happens in a vacuum?
thermal radiation
what is a vacuum?
a space with no particles
why does the thermal energy store of a hot object get less , and the thermal store of the surrounding get bigger?
the surrounding are at a lower temperature then the object
in what direction does thermal energy flow?
towards area with lower temperature
unit of temperature
degrees celcius
boiling point of water
100 degrees celcius
freezing point of water
0 degrees celcius
what colour materials are good radiators?
dark and dull
what colour materials are poor radiators?
light and shiny
what colour materials are good absorbers?
dark and dull
what colour materials are poor absorbers?
light and shiny
what colour materials are good reflectors?
light and shiny
absorbers of heat
objects which take in heat radiation
emitters of heat
objects that give off heat by radiation

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thermal radiation

Cards (15)

8.1. Thermal Energy Transfer

9.4 Heat and Energy Transfer

6.2 Heat Transfer and Thermal Equilibrium

6.2 Thermal physics

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2.4.2 Energy Transfer

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5.2 Energy Transfer in Ecosystems

1.1.2 Understanding Energy Transfers

1.2.2 Efficiency of Energy Transfers

5.2 Work Done and Energy Transfer

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1.2.3 Reducing Unwanted Energy Transfers

1.2.2 Efficiency of Energy Transfers

1.2.3 Reducing Unwanted Energy Transfers

6. Further mechanics and thermal physics

2.4 Energy Transfers in Electrical Appliances

5.2 Energy Transfer in Ecosystems