Heat Transfer and Temperature
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Questions and Answers

What happens when a substance is heated?

  • The atoms/molecules themselves expand
  • The atoms/molecules gain energy and move faster (correct)
  • The atoms/molecules lose energy and move slower
  • The volume of the substance decreases
  • When the atoms/molecules move faster, what happens to the temperature?

  • The temperature fluctuates randomly
  • The temperature decreases
  • The temperature increases (correct)
  • The temperature remains the same
  • What happens to the volume of a substance when it is cooled?

  • The volume fluctuates randomly
  • The volume decreases (correct)
  • The volume remains the same
  • The volume increases
  • Which of the following statements about the atoms/molecules themselves is true?

    <p>They remain the same size regardless of temperature changes</p> Signup and view all the answers

    What happens to the strength and frequency of collisions between atoms/molecules when a substance is heated?

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

    Which of the following best describes the relationship between energy transfer and temperature change?

    <p>Energy transfer and temperature change are directly related: energy gained leads to higher temperature, and energy lost leads to lower temperature</p> Signup and view all the answers

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