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Questions and Answers
What happens when a substance is heated?
What happens when a substance is heated?
- The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions. (correct)
- Energy is transferred from the substance, and it loses energy.
- The atoms/molecules move slower and the volume of the substance decreases.
- The atoms/molecules themselves expand in size.
What is the relationship between temperature and the speed of atoms/molecules?
What is the relationship between temperature and the speed of atoms/molecules?
- The faster the atoms/molecules move, the lower the temperature.
- The slower the atoms/molecules move, the higher the temperature.
- Temperature is not related to the speed of atoms/molecules.
- Temperature is a measurement of the average speed of atoms/molecules. (correct)
What happens when a substance is cooled?
What happens when a substance is cooled?
- The atoms/molecules lose energy and move slower, resulting in weaker and less frequent collisions. (correct)
- The atoms/molecules expand in size.
- The atoms/molecules spread further apart and the volume of the substance increases.
- The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions.
What is the relationship between temperature and the volume of a substance?
What is the relationship between temperature and the volume of a substance?
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What is the main mechanism by which temperature changes in a substance?
What is the main mechanism by which temperature changes in a substance?
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