Multiple choice

When an object cools down the molecules

  1. get farther apart from each other and go faster

  2. get closer together and go faster

  3. get farther apart and go slower

  4. get closer together and go slower
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

As temperature decreases, the kinetic energy of molecules decreases, causing them to move more slowly. Consequently, they occupy less space and move closer together.

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