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Questions and Answers
What happens when a substance is cooled?
What happens when a substance is cooled?
- The volume of the substance increases
- Atoms/molecules lose energy and move slower (correct)
- Atoms/molecules gain energy and move faster
- Energy is transferred to the substance
Which statement best describes temperature?
Which statement best describes temperature?
- A measurement of the volume of atoms/molecules
- A measure of the energy gained by the substance
- A measure of the strength of collisions between atoms/molecules
- A measurement of the average speed of atoms/molecules (correct)
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 get closer together and the volume decreases
- The collisions between atoms/molecules become weaker
- The atoms/molecules spread further apart (expand) and the volume increases (correct)
- The substance compresses and the volume decreases
How does cooling a substance affect the speed of particles?
How does cooling a substance affect the speed of particles?
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What is the relationship between heating a substance and the frequency of collisions?
What is the relationship between heating a substance and the frequency of collisions?
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