Heat Transfer and Temperature Measurement

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Questions and Answers

What happens when a substance is heated?

  • The atoms/molecules themselves expand in size
  • The atoms/molecules gain energy and move faster (correct)
  • The substance's volume decreases
  • The atoms/molecules lose energy and move slower

Which of the following statements about temperature is true?

  • Temperature is a measurement of the total energy of atoms/molecules
  • Temperature is a measurement of the average speed of atoms/molecules (correct)
  • Temperature is a measurement of the distance between atoms/molecules
  • Temperature is a measurement of the size of atoms/molecules

What happens to the volume of a substance when it is cooled?

  • The volume remains the same
  • The volume decreases (correct)
  • The volume changes randomly
  • The volume increases

How do the collisions between atoms/molecules change when a substance is heated?

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

What happens to the atoms/molecules themselves when a substance is heated or cooled?

<p>They remain the same size (D)</p> Signup and view all the answers

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