Podcast
Questions and Answers
What happens when a substance is heated?
What happens when a substance is heated?
- The atoms/molecules spread further apart and the volume of the substance decreases
- The atoms/molecules lose energy and move slower, resulting in less frequent collisions
- The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions (correct)
- The atoms/molecules do not change speed, but the volume of the substance increases
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 has no relationship to the speed of atoms/molecules
- The faster the atoms/molecules move, the lower the temperature
- The speed of atoms/molecules is unrelated to temperature
- 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 spread further apart and the volume of the substance increases
- The atoms/molecules lose energy and move slower, resulting in less frequent collisions (correct)
- The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions
- The atoms/molecules do not change speed, but the volume of the substance decreases
How do the atoms/molecules themselves change when a substance is heated or cooled?
How do the atoms/molecules themselves change when a substance is heated or cooled?
What is the relationship between energy transfer and temperature change?
What is the relationship between energy transfer and temperature change?
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