Physics 1 - 1.7

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The greater the temperature difference between an object and its surroundings...
...the greater the rate at which energy is transferred.
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What does the rate at which energy is transferred depend on?
1. The materials the object is in contact with. 2. The object's shape. 3. The object's surface area.
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Why do we maximise the rate of energy transfer?
To keep things cool.
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How do we maximise the rate of energy transfer?
We use things that: Are good conductors, are painted dull black, or have the air flow around them maximised.
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Why do we minimise the rate of energy transfer?
To keep things warm.
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How do we minimise the rate of energy transfer?
We use things that: Are good insulators, are white and shiny, or prevent convection currents by trapping air in small pockets.
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Other cards in this set

Card 2

Front

What does the rate at which energy is transferred depend on?

Back

1. The materials the object is in contact with. 2. The object's shape. 3. The object's surface area.

Card 3

Front

Why do we maximise the rate of energy transfer?

Back

Preview of the front of card 3

Card 4

Front

How do we maximise the rate of energy transfer?

Back

Preview of the front of card 4

Card 5

Front

Why do we minimise the rate of energy transfer?

Back

Preview of the front of card 5
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