15 greenhouse effect, heat transfer
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Transcript of 15 greenhouse effect, heat transfer
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Class 15:
Variations in Heating, Heat Transfer
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1. Increase
2. Decrease
3. Remain the same
4. No way of knowing
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1. Increase
2. Decrease
3. Remain the same
4. No way of knowing
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1 2 3 4
8%0%0%
92%1. Temperature will increase
2. Temperature will decrease
3. Temperature will remain the same
4. We’re not sure
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92%
8%
0%0%0%
1. Increase
2. Decrease
3. Increase first, then decrease
4. No change
5. We’re not sure what would happen
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Transfer of heat between objects in contact with each other OR
Between molecules that are within one object
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Vertical movement of fluids
“Hot Air Rises” ………. And cools down
Cold air sinks…. And heats up
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Horizontal movement of fluids
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The heating or cooling of a fluid (liquid or gas)
WITHOUT the addition or subtraction of heat
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Expansion through decreased pressure = molecules spreading apart, slowing down, cooling off
Compression through increased pressure = molecules being pushed together, colliding more, speeding up, heating up
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What happened?
Why?
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0%9%
91%
1. The football stayed the same
2. The football became inflated
3. The football lost air
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1. The gas will cool down
2. The gas will heat up
3. The gas will stay the same temperature
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Latent = “hidden” heat, used or released during phase changes
Sensible = heat that results in temperature change
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0%
8%8%
83%1. Condensation
2. Evaporation
3. Deposition
4. Freezing