Heat

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  • Created by: DiHydro
  • Created on: 02-05-16 18:23
What does IR stand for?
Infra-red
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Can IR Radiation travel through vacuum?
Yes
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How fast does IR radiation travel?
Over 300,000,00 m/s
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What can IR radiation not pass through?
Opaque Materials
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What objects emit thermal energy?
All Objects
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Do dark/dull objects reflect or absorb radiation?
Absorb
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Do light/shiny objects reflect or absorb radiation?
Reflect
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How does the plastic stopper in a thermos flask prevent thermal transfer?
The plastic is an insulator
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If two different volumes of water were heated which would heat quicker?
The smaller volume
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What is the definition of 'conductors?'
Something that lets energy pass along it.
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What is definition of 'insulators?'
Something that does not let energy pass along it.
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What particles vibrate a lot?
Hot particles
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What particles vibrate a little?
cold partices
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Is glass a conductor?
yes
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How does double glazing act as an insulator?
The air gap in-between acts as insulator due to a lack of particles.
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What happens when a substance gets hot?
It expands
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Other cards in this set

Card 2

Front

Can IR Radiation travel through vacuum?

Back

Yes

Card 3

Front

How fast does IR radiation travel?

Back

Preview of the front of card 3

Card 4

Front

What can IR radiation not pass through?

Back

Preview of the front of card 4

Card 5

Front

What objects emit thermal energy?

Back

Preview of the front of card 5
View more cards

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