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Questions and Answers
What happens when a substance is heated?
What happens when a substance is heated?
- The atoms/molecules move slower and the volume of the substance decreases
- The atoms/molecules move faster and the volume of the substance increases (correct)
- The atoms/molecules themselves expand in size
- Energy is transferred from the substance, and it loses energy
What is the relationship between temperature and the speed of atoms/molecules?
What is the relationship between temperature and the speed of atoms/molecules?
- Temperature is not related to the speed of atoms/molecules
- The faster the atoms/molecules move, the lower the temperature
- Temperature is a measurement of the average speed of atoms/molecules (correct)
- The slower the atoms/molecules move, the higher the temperature
What happens when a substance is cooled?
What happens when a substance is cooled?
- The atoms/molecules gain energy and move faster, causing the volume to increase
- The atoms/molecules lose energy and move slower, causing the volume to increase
- The atoms/molecules lose energy and move slower, causing the volume to decrease (correct)
- The atoms/molecules themselves shrink in size
What is the effect of heating or cooling on the atoms/molecules themselves?
What is the effect of heating or cooling on the atoms/molecules themselves?
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How does the frequency and strength of collisions between atoms/molecules change when a substance is heated or cooled?
How does the frequency and strength of collisions between atoms/molecules change when a substance is heated or cooled?
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