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Questions and Answers
What is heat?
What is heat?
- A form of energy that is only generated by the Sun
- A form of energy that flows between two bodies of the same temperature
- A form of energy that flows between two bodies of different temperatures (correct)
- A form of energy that is not related to temperature
How can heat energy be transformed?
How can heat energy be transformed?
- Only into electrical energy
- Only into mechanical energy
- All other forms of energy may be converted into heat (correct)
- Only into chemical energy
What happens when work is done by compressing air?
What happens when work is done by compressing air?
- The air molecules expand
- The air molecules are driven into a smaller space and become warmer (correct)
- The air molecules slow down
- The air molecules turn into a liquid state
What does an increase in the temperature of a system indicate?
What does an increase in the temperature of a system indicate?
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What does the rapid movement of atoms or molecules represent?
What does the rapid movement of atoms or molecules represent?
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How is temperature measured?
How is temperature measured?
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