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, resulting in stronger and more frequent collisions. (correct)
- The atoms/molecules themselves expand in size.
- Energy is transferred from the substance, and it loses energy.
- The atoms/molecules move slower, and the volume of the substance decreases.
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 volume of the substance decreases.
- The faster the atoms/molecules move, the lower 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 to the volume of a substance when it is cooled?
What happens to the volume of a substance when it is cooled?
- The atoms/molecules expand, and the volume of the substance increases.
- The volume of the substance increases.
- The volume of the substance remains the same.
- The atoms/molecules get closer together, and the volume of the substance decreases. (correct)
What is the key difference between heating and cooling a substance?
What is the key difference between heating and cooling a substance?
How do the atoms/molecules themselves behave during heating and cooling?
How do the atoms/molecules themselves behave during heating and cooling?
What is the effect of stronger and more frequent collisions between atoms/molecules when a substance is heated?
What is the effect of stronger and more frequent collisions between atoms/molecules when a substance is heated?
What happens to the volume of a substance when its atoms/molecules move slower?
What happens to the volume of a substance when its atoms/molecules move slower?
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?
What occurs to the collisions between atoms/molecules when a substance is cooled?
What occurs to the collisions between atoms/molecules when a substance is cooled?
In relation to heating a substance, what effect does gaining energy have on the atoms/molecules?
In relation to heating a substance, what effect does gaining energy have on the atoms/molecules?
What is the consequence of atoms/molecules moving faster in relation to temperature?
What is the consequence of atoms/molecules moving faster in relation to temperature?
When energy is transferred from a substance, what happens to the temperature?
When energy is transferred from a substance, what happens to the temperature?
