Heating and Cooling of Substances Quiz

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Questions and Answers

What happens to the speed of atoms/molecules when a substance is heated?

  • The atoms/molecules move slower
  • The atoms/molecules move faster (correct)
  • The atoms/molecules expand in size
  • The atoms/molecules remain at the same speed

Which statement best describes the relationship between temperature and the motion of atoms/molecules?

  • Higher temperature means slower atomic/molecular motion
  • Temperature and atomic/molecular motion are unrelated
  • Higher temperature means faster atomic/molecular motion (correct)
  • Lower temperature means faster atomic/molecular motion

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

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

What happens to the collisions between atoms/molecules when a substance is warmed?

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

Which statement is true about the size of atoms/molecules during heating and cooling?

<p>The atoms/molecules themselves do not expand or shrink (B)</p> Signup and view all the answers

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