Podcast
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, leading to stronger and more frequent collisions. (correct)
- The atoms/molecules stay the same speed, but the volume of the substance increases.
- The atoms/molecules lose energy and move slower, leading to weaker and less frequent collisions.
- The atoms/molecules expand in size, causing the volume of the substance to increase.
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 slower the atoms/molecules move, the higher the temperature.
- Temperature has no relationship to the speed of atoms/molecules.
- Temperature is a measurement of the average speed of atoms/molecules. (correct)
- The faster the atoms/molecules move, the lower the temperature.
What happens when a substance is cooled?
What happens when a substance is cooled?
- The atoms/molecules shrink in size, causing the volume of the substance to decrease.
- The atoms/molecules stay the same speed, but the volume of the substance decreases.
- The atoms/molecules lose energy and move slower, leading to weaker and less frequent collisions. (correct)
- The atoms/molecules gain energy and move faster, leading to stronger and more frequent collisions.
What happens to the volume of a substance when it is heated?
What happens to the volume of a substance when it is heated?
What happens to the volume of a substance when it is cooled?
What happens to the volume of a substance when it is cooled?
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