1.1 Infrared Radiation

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  • Created by: adannaa
  • Created on: 03-11-15 19:25
Give 3 Examples of infrared Radiation taking place
1) Put your hand near a cup 2)On a sunny days out when you absorbs the suns heat(This is due to the heat travelling through a vacuum by electromagnetic waves). 3) The feeling of Warmth when you but your head next to a fire place
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Does Infrared Radiation require particles?
No, it uses electromagnetic waves for heat transfer
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Which emits more Radiation? A white surface or a Black surface
A Black Surface
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Which absorbs more radiation? A white surface or a black surface
A Black surface
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Which emits more Radiation? A DULL/MAT black surface or a SHINY black surface
A dull/mat surface
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Which absorbs more radiation? A DULL/MAT black surface or a SHINY black surface
A dull/matt surface
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Which absorbs less Radiation? A SHINY white surface or a White DULL surface
SHINY surface
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Which emits less radiation? A SHINY white surface or a Dull surface
Shiny surface
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How does Infrared Radiation transfer heat?
It travels through a vacuum by electromagnetic waves
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Name types of ways in which Heat can be transfered
1)Conduction 2)Convection 3)Condensation 3)Radiation 3)Evaporation
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How do you detect heat?
Thorough you skin - you feel the warmth
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Suggest a reason why white surfaces emit and absorb less?
Because it reflect light, so less heat is going to go through
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Suggest a reason why black surfaces emit and absorb more?
Because it absorb all the wavelength (electromagnetic waves) so it is likely to absorb and also emit more
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What is a thermogram?
A way of detecting heat through a camera
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What are the uses for a theromogram?
Used in hospital to check if a person wounded or it can be used in airport for security reasons
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What is a Radiometry
A way of detecting temperature through an image
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Other cards in this set

Card 2

Front

Does Infrared Radiation require particles?

Back

No, it uses electromagnetic waves for heat transfer

Card 3

Front

Which emits more Radiation? A white surface or a Black surface

Back

Preview of the front of card 3

Card 4

Front

Which absorbs more radiation? A white surface or a black surface

Back

Preview of the front of card 4

Card 5

Front

Which emits more Radiation? A DULL/MAT black surface or a SHINY black surface

Back

Preview of the front of card 5
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