Heating and Cooling of Substances Quiz
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Questions and Answers

What happens when a substance is cooled?

  • The atoms/molecules gain energy and move faster.
  • The atoms/molecules lose energy and move slower. (correct)
  • The volume of the substance increases.
  • The collisions between atoms/molecules become stronger and more frequent.

    • What does temperature measure?

  • The average speed of atoms/molecules (correct)
  • The volume of the substance
  • The distance between atoms/molecules
  • The strength of collisions between atoms/molecules

    • How does heating a substance affect the volume?

  • The collisions between atoms/molecules are less frequent.
  • The atoms/molecules expand and the volume decreases.
  • The volume of the substance increases as atoms/molecules spread further apart. (correct)
  • The atoms/molecules get closer together (compress) and the volume decreases.

    • What happens to the temperature of a substance when its particles are moving slower?

    <p>The temperature is lower</p> Signup and view all the answers

    How are collisions affected when a substance is cooled?

    <p>Collisions become weaker and less frequent</p> Signup and view all the answers

    Which statement accurately describes the relationship between the speed of particles and temperature?

    <p>The faster the particles move, the higher the temperature.</p> Signup and view all the answers

    When a substance is heated, what happens to the volume of the substance?

    <p>The volume increases due to the particles moving further apart.</p> Signup and view all the answers

    What is the primary reason for the change in volume when a substance is heated or cooled?

    <p>The change in the frequency and strength of collisions between atoms/molecules.</p> Signup and view all the answers

    If a substance is cooled, what happens to the strength and frequency of collisions between its atoms/molecules?

    <p>The collisions become weaker and less frequent.</p> Signup and view all the answers

    What is the primary mechanism by which energy is transferred to or from a substance during heating or cooling?

    <p>The change in the speed of atoms/molecules within the substance.</p> Signup and view all the answers

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