unit 1

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  • Created by: SLowther
  • Created on: 10-11-16 17:08
What is infrared radiation?
Infrared radiation is heat energy travelling through the air as waves. No particles are involved.
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What can infrared travel as?
Infrared travels through the air as waves through a vacuum. No medium is required.
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What do all objects do? What effects this?
all objects emit infrared radiation. the hotter the object the more infrared radiation it emits.
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what surfaces are the best emitters of radiation?
Dull,black surfaces are the best emitters and absorbers of radiation.
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what surfaces are good reflecters of radiation?
shiny silver surfaces are the best at reflecting radiation but not good at absorbing it.
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Why are radiators painted black?
Black is a good emitter of radiation so it gets rid of the heat. This means the heat transfers from the radiator more quickly.
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What are the three states of matter?
Solids, liquids and gases
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Other cards in this set

Card 2

Front

What can infrared travel as?

Back

Infrared travels through the air as waves through a vacuum. No medium is required.

Card 3

Front

What do all objects do? What effects this?

Back

Preview of the front of card 3

Card 4

Front

what surfaces are the best emitters of radiation?

Back

Preview of the front of card 4

Card 5

Front

what surfaces are good reflecters of radiation?

Back

Preview of the front of card 5
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