Heating and Cooling of Substances Quiz
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Questions and Answers

What happens when a substance is cooled?

  • The atoms/molecules gain energy and move faster.
  • The atoms/molecules lose energy and move slower. (correct)
  • The volume of the substance increases.
  • The collisions between atoms/molecules become stronger and more frequent.

What does temperature measure?

  • The average speed of atoms/molecules (correct)
  • The volume of the substance
  • The distance between atoms/molecules
  • The strength of collisions between atoms/molecules

How does heating a substance affect the volume?

  • The collisions between atoms/molecules are less frequent.
  • The atoms/molecules expand and the volume decreases.
  • The volume of the substance increases as atoms/molecules spread further apart. (correct)
  • The atoms/molecules get closer together (compress) and the volume decreases.

What happens to the temperature of a substance when its particles are moving slower?

<p>The temperature is lower (C)</p> Signup and view all the answers

How are collisions affected when a substance is cooled?

<p>Collisions become weaker and less frequent (A)</p> Signup and view all the answers

Which statement accurately describes the relationship between the speed of particles and temperature?

<p>The faster the particles move, the higher the temperature. (B)</p> Signup and view all the answers

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

<p>The volume increases due to the particles moving further apart. (B)</p> Signup and view all the answers

What is the primary reason for the change in volume when a substance is heated or cooled?

<p>The change in the frequency and strength of collisions between atoms/molecules. (D)</p> Signup and view all the answers

If a substance is cooled, what happens to the strength and frequency of collisions between its atoms/molecules?

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

What is the primary mechanism by which energy is transferred to or from a substance during heating or cooling?

<p>The change in the speed of atoms/molecules within the substance. (C)</p> Signup and view all the answers

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