Heating and Cooling of Substances Quiz
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Questions and Answers

What happens when a substance is heated?

  • The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions. (correct)
  • Energy is transferred from the substance, and it loses energy.
  • The atoms/molecules move slower and the volume of the substance decreases.
  • The atoms/molecules themselves expand in size.
  • What is the relationship between temperature and the speed of atoms/molecules?

  • The faster the atoms/molecules move, the lower the temperature.
  • The slower the atoms/molecules move, the higher 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 when a substance is cooled?

  • The atoms/molecules lose energy and move slower, resulting in weaker and less frequent collisions. (correct)
  • The atoms/molecules expand in size.
  • The atoms/molecules spread further apart and the volume of the substance increases.
  • The atoms/molecules gain energy and move faster, resulting in stronger and more frequent collisions.
  • What is the relationship between temperature and the volume of a substance?

    <p>As temperature increases, the volume of the substance also increases.</p> Signup and view all the answers

    What is the main mechanism by which temperature changes in a substance?

    <p>Energy is transferred to or from the substance, causing the atoms/molecules to move at different speeds.</p> Signup and view all the answers

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