Understanding Heat Effect on Particles, Temperature, and Volume
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Questions and Answers

What happens when a substance is cooled?

  • The volume of the substance increases
  • Atoms/molecules lose energy and move slower (correct)
  • Atoms/molecules gain energy and move faster
  • Energy is transferred to the substance
  • Which statement best describes temperature?

  • A measurement of the volume of atoms/molecules
  • A measure of the energy gained by the substance
  • A measure of the strength of collisions between atoms/molecules
  • A measurement of the average speed of atoms/molecules (correct)
  • What happens to the volume of a substance when it is warmed?

  • The atoms/molecules get closer together and the volume decreases
  • The collisions between atoms/molecules become weaker
  • The atoms/molecules spread further apart (expand) and the volume increases (correct)
  • The substance compresses and the volume decreases
  • How does cooling a substance affect the speed of particles?

    <p>Particles lose energy and move slower</p> Signup and view all the answers

    What is the relationship between heating a substance and the frequency of collisions?

    <p>Collisions become stronger and more frequent</p> Signup and view all the answers

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