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Questions and Answers
What happens when energy is transferred to a substance?
What happens when energy is transferred to a substance?
- The substance gains energy, but the speed of its atoms/molecules decreases.
- The substance loses energy, and the speed of its atoms/molecules decreases.
- The substance gains energy, and the speed of its atoms/molecules increases. (correct)
- The substance remains unchanged, and the speed of its atoms/molecules stays the same.
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 decreases as the atoms/molecules move slower and get closer together. (correct)
- The volume increases as the atoms/molecules expand in size.
- The volume remains the same as the speed of the atoms/molecules does not change.
- The volume increases as the atoms/molecules move faster.
Which of the following statements about temperature is correct?
Which of the following statements about temperature is correct?
- Temperature is a measurement of the distance between the atoms/molecules in a substance.
- Temperature is a measurement of the average speed of the atoms/molecules in a substance. (correct)
- Temperature is a measurement of the size of the atoms/molecules in a substance.
- Temperature is a measurement of the total energy of the atoms/molecules in a substance.
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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What happens to the strength and frequency of collisions between atoms/molecules when a substance is warmed?
What happens to the strength and frequency of collisions between atoms/molecules when a substance is warmed?
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