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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?

Collisions become weaker and less frequent Signup and view all the answers

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

The temperature is lower Signup and view all the answers

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

The volume decreases Signup and view all the answers

Match the following statements with the correct explanation:

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 Signup and view all the answers

Match the following effects with the correct process:

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 Signup and view all the answers

Match the following outcomes with the correct cause:

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