P1.1.1 Infrared Radiation + P1.1.2 Surfaces and Radiation + P1.1.3 States of Matter

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  • Created by: Maddi
  • Created on: 18-04-14 19:19
What surfaces are the best emiters of infrared radiation?
Dark, matt surfaces emit more infrared radiation than light, shiny surfaces.
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What surfaces are the best absorbers of infrared radiation?
Dark, matt surfaces absorb more infrared radiation than light, shiny surfaces.
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What surfaces are the best reflectors of infrared radiation?
Light, shiny surfaces reflect more infrared radiation than dark matt surfaces.
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How are the particles in solids arranged?
The particles in a slid are held next to each other in fixed positions. They vibrate about their fixed positions so the solid keeps its own shape.
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How are the particles in liquids arranged?
The particles in a liquid are in contact with each other. They move about at random. So a liquid doesn't have its own shape and it can flow.
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How are the particles in gases arranged?
The particles in a gas move about at random much faster. They are much further apart from each other than in a liquid.
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Why is a gas much less dense than a solid or a liquid?
The particles in a gas move about randomly and are much further apart than particles in a solid or liquid.
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Do all objects give off infrared radiation?
All objects give off infrared radiation
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How does infrared radiation depend on the temperature of the object?
The hotter an object, the more infrared radiation it emits in a given time.
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What makes an object emit/ absorb infrared radiation faster?
If there is a bigger difference in temperature between the object and its surroundings.
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Other cards in this set

Card 2

Front

What surfaces are the best absorbers of infrared radiation?

Back

Dark, matt surfaces absorb more infrared radiation than light, shiny surfaces.

Card 3

Front

What surfaces are the best reflectors of infrared radiation?

Back

Preview of the front of card 3

Card 4

Front

How are the particles in solids arranged?

Back

Preview of the front of card 4

Card 5

Front

How are the particles in liquids arranged?

Back

Preview of the front of card 5
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