Heat Transfer and Temperature Quiz

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Questions and Answers

What happens when a substance is heated?

  • The atoms/molecules gain energy and move faster (correct)
  • Energy is transferred from the substance
  • The volume of the substance decreases
  • The atoms/molecules move slower

What is the relationship between temperature and the speed of atoms/molecules?

  • Temperature is unrelated to the speed of atoms/molecules
  • The faster the atoms/molecules move, the lower the temperature
  • Temperature is a measurement of the average speed of atoms/molecules (correct)
  • The faster the atoms/molecules move, the higher the pressure

What happens when a substance is cooled?

  • The atoms/molecules themselves expand
  • The volume of the substance increases
  • The atoms/molecules gain energy and move faster
  • The atoms/molecules lose energy and move slower (correct)

How does the frequency and strength of collisions between atoms/molecules change when a substance is warmed?

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

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

<p>The volume decreases (C)</p> Signup and view all the answers

Do the atoms/molecules themselves expand or shrink when a substance is heated or cooled?

<p>No, the atoms/molecules do not change size, only their speed changes (B)</p> Signup and view all the answers

What is the main effect of heating a substance?

<p>The atoms/molecules gain energy and move faster (A)</p> Signup and view all the answers

What is the relationship between temperature and the speed of atoms/molecules?

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

What is the main effect of cooling a substance?

<p>The atoms/molecules lose energy and move slower (A)</p> Signup and view all the answers

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

<p>The volume increases as the atoms/molecules spread further apart (C)</p> Signup and view all the answers

How do the frequency and strength of collisions between atoms/molecules change when a substance is cooled?

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

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

<p>The volume decreases as the atoms/molecules get closer together (D)</p> Signup and view all the answers

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