In what state(s) of matter does infra-red radiation occur in?
Solids, liquids and gasses
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In what state(s) of matter does conduction occur in?
Solids
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In what state(s) of matter does convection occur in?
Liquids and gasses
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(Fill in the words): An object that is hotter than it's surroundings emits ______ radiation than it absorbs
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5 of 13
(Fill in the words): An object that is cooler than it's surroundings absorbs ______ radiation than it emits
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In what appearance does an object absorb Infra-red radiation better?
Matt, black
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What happens during conduction?
In solids electrons are free to move, the heat will make the electrons move faster and collide with eachother -transferring energy- making the whole object hot
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How does a convection current occur?
As the liquid/ gas heats it gets less dense, making it rise, fast-moving particles collide with slow-moving particles and transfer heat
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What changes/ into what in condensation?
Gas turns to a liquid (water vapour- water)
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What changes/ into what in evaporation?
Liquid turns into a gas (boiling water- steam)
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What does the rate at which an object transfers energy by heating depend on?
1. The surface area and volume 2. The material from which the object is made 3. The nature of the surface with which the object is in contact
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What is the statement explaining the rate at which energy is transferred by heat?
The bigger the temperature difference between an object and it's surroundings, the faster the rate at which energy is transferred by heating
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Other cards in this set
Card 2
Front
In what state(s) of matter does infra-red radiation occur in?
Back
Solids, liquids and gasses
Card 3
Front
In what state(s) of matter does conduction occur in?
Back
Card 4
Front
In what state(s) of matter does convection occur in?
Back
Card 5
Front
(Fill in the words): An object that is hotter than it's surroundings emits ______ radiation than it absorbs
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