Podcast
Questions and Answers
What happens to the volume of a substance when it is warmed?
What happens to the volume of a substance when it is warmed?
- The atoms/molecules remain the same distance apart and the volume decreases
- The atoms/molecules get closer together and the volume decreases
- The atoms/molecules spread further apart and the volume increases (correct)
- The atoms/molecules move closer together and the volume increases
Which statement is true about the relationship between temperature and atom/molecule speed?
Which statement is true about the relationship between temperature and atom/molecule speed?
- Lower temperature means no change in atom/molecule speed
- Lower temperature means faster atom/molecule speed
- Higher temperature means faster atom/molecule speed (correct)
- Higher temperature means slower atom/molecule speed
What happens to the collisions between atoms/molecules when a substance is cooled?
What happens to the collisions between atoms/molecules when a substance is cooled?
- Collisions become negligible
- Collisions are weaker and less frequent (correct)
- Collisions are stronger and more frequent
- Collisions remain the same strength but occur less frequently
How does cooling a substance affect the volume of the substance?
How does cooling a substance affect the volume of the substance?
What results in a higher temperature of a substance?
What results in a higher temperature of a substance?
What is the primary mechanism by which temperature changes occur in a substance?
What is the primary mechanism by which temperature changes occur in a substance?
When a substance is cooled, what happens to the collisions between its atoms/molecules?
When a substance is cooled, what happens to the collisions between its atoms/molecules?
How does the volume of a substance change when it is warmed?
How does the volume of a substance change when it is warmed?
What is the relationship between the speed of atoms/molecules and the temperature of a substance?
What is the relationship between the speed of atoms/molecules and the temperature of a substance?
How does the volume of a substance change when it is cooled?
How does the volume of a substance change when it is cooled?
What is the primary effect of increasing the energy of the atoms/molecules in a substance?
What is the primary effect of increasing the energy of the atoms/molecules in a substance?
