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What gives off infrared radiation?
All objects
1 of 15
What is vaccum?
Is empty space
2 of 15
What surfaces are good absorbers of radiation?
Dark, matt surfaces
3 of 15
What surfaces are slow to emit infrared radiation?
Light, shiny surfaces
4 of 15
What surfaces are fast to emit infrared radiation?
Dark, matt surfaces
5 of 15
What surfaces are good reflectors of infrared radiation?
Light, shiny surfaces
6 of 15
Describe the particles in a gas
1. Strong forces of attraction which hold the particles close together. 2. Held together in a fixed, regular arrangement. 3.don't have much energy so just vibrate
7 of 15
Describe the particles in a solid
1. Almost no forces of attraction between particles 2. Have more energy than a solid and liquid 3. Free to move at random directions at high speess
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Describe the particles in a liquid
1. Weaker forces of attraction between particles. 2. Close together in irregular arrangement 3. Move at random directions at low speeds
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Where does convection occur?
In liquids and gases
10 of 15
Where do conduction occur?
In solids
11 of 15
Why are metals good conductors?
Because they have free, deloclaised electrons which are free to move inside the metal
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What is poor conductor called?
Insulator
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What three things can increase the rate of condensation?
1. Temperature is increased 2. Density is lower 3. Surface area larger
14 of 15
What 2 things can increase the rate of condensation?
1. Temperature of gas is decreased 2. Air flow is less 3. Density is higher
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Other cards in this set

Card 2

Front

What is vaccum?

Back

Is empty space

Card 3

Front

What surfaces are good absorbers of radiation?

Back

Preview of the front of card 3

Card 4

Front

What surfaces are slow to emit infrared radiation?

Back

Preview of the front of card 4

Card 5

Front

What surfaces are fast to emit infrared radiation?

Back

Preview of the front of card 5
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