Understanding Heat and Particle Speed
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Questions and Answers

What happens when energy is transferred to a substance?

  • Atoms/molecules move faster (correct)
  • Atoms/molecules move slower
  • The substance expands
  • The substance shrinks

How is temperature related to the speed of atoms/molecules?

  • Higher speed means lower temperature
  • Temperature is independent of speed
  • Speed has no impact on temperature
  • Higher speed means higher temperature (correct)

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

  • The volume remains constant
  • The volume increases (correct)
  • The atoms/molecules shrink
  • The volume decreases

When a substance is cooled, what happens to the collisions between atoms/molecules?

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

In terms of temperature, what does it mean when particles are moving slower?

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

What effect does cooling a substance have on the volume of the substance?

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

Match the following statements with the correct explanation:

<p>Heating a substance = Energy is transferred to the substance Cooling a substance = Energy is transferred from the substance Faster atoms/molecules = Higher temperature Slower particles = Lower temperature</p> Signup and view all the answers

Match the following effects with the correct process:

<p>Atoms/molecules move faster = Substance is warmed Collisions are stronger and more frequent = Substance is warmed Atoms/molecules move slower = Substance is cooled Collisions are not as strong and less frequent = Substance is cooled</p> Signup and view all the answers

Match the following outcomes with the correct cause:

<p>Atoms/molecules spread further apart = Volume of substance increases Atoms/molecules get closer together = Volume of substance decreases</p> Signup and view all the answers

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