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, leading to stronger and more frequent collisions, and an increase in volume. (correct)
  • The atoms/molecules lose energy and move slower, leading to weaker and less frequent collisions, and a decrease in volume.
  • The atoms/molecules remain the same speed, but the volume of the substance increases.
  • The atoms/molecules expand in size, leading to an increase in volume.
  • What is the relationship between the speed of atoms/molecules and temperature?

  • The faster the atoms/molecules move, the higher the temperature. (correct)
  • The speed of atoms/molecules has no effect on temperature.
  • Temperature is determined by the size of the atoms/molecules, not their speed.
  • The faster the atoms/molecules move, the lower the temperature.
  • What happens when a substance is cooled?

  • The atoms/molecules gain energy and move faster, leading to stronger and more frequent collisions, and an increase in volume.
  • The atoms/molecules remain the same speed, but the volume of the substance decreases.
  • The atoms/molecules expand in size, leading to a decrease in volume.
  • The atoms/molecules lose energy and move slower, leading to weaker and less frequent collisions, and a decrease in volume. (correct)
  • What is the effect of heating or cooling on the atoms/molecules themselves?

    <p>Heating and cooling have no effect on the size of the atoms/molecules.</p> Signup and view all the answers

    How does temperature relate to the average speed of atoms/molecules?

    <p>Temperature is a measurement of the average speed of atoms/molecules.</p> Signup and view all the answers

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