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Questions and Answers
What happens to the speed of atoms/molecules when a substance is heated?
What happens to the speed of atoms/molecules when a substance is heated?
- The speed of atoms/molecules decreases
- The speed of atoms/molecules increases (correct)
- The atoms/molecules themselves expand
- The speed of atoms/molecules remains the same
Which of the following statements about temperature is correct?
Which of the following statements about temperature is correct?
- Temperature is a measure of the size of atoms/molecules
- Temperature is a measure of the total energy of a substance
- Temperature is a measure of the average speed of atoms/molecules (correct)
- Temperature is a measure of the mass of a substance
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 volume increases
- The atoms/molecules themselves shrink
- The volume decreases (correct)
- The volume remains the same
Which of the following statements about the collisions of atoms/molecules is true when a substance is heated?
Which of the following statements about the collisions of atoms/molecules is true when a substance is heated?
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What happens to the atoms/molecules themselves when a substance is heated or cooled?
What happens to the atoms/molecules themselves when a substance is heated or cooled?
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