What shows a decrease in kinetic energy?
Understand the Problem
The question is asking for an example of a process that involves a decrease in kinetic energy. The options provided relate to changes in states of matter or motion, and we need to identify which one correctly indicates a decrease in kinetic energy.
Answer
Water freezing.
The final answer is Water freezing.
Answer for screen readers
The final answer is Water freezing.
More Information
When water freezes, the movement of its molecules decreases, which reduces its kinetic energy. This is opposite to processes like boiling and melting, where the energy and movement increase.
Tips
A common mistake is to assume that phase changes like melting or boiling decrease kinetic energy; these actually increase it.
Sources
- Average Kinetic Energy and Temperature - CK12-Foundation - flexbooks.ck12.org
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