Question

What happens to the kinetic energy of the particles as a substance freezes?
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The particles move more slowly.
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The particles move more quickly.
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The particles bounce off of each other with more force.
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The particles stop moving completely.

Answer 1

As a substance freezes, the kinetic energy of the particles decreases, causing the particles to move more slowly. So, the correct answer is:

**The particles move more slowly.**