Which shows an increase in kinetic energy?
Understand the Problem
The question is asking which of the provided scenarios represents an increase in kinetic energy, particularly focused on the behavior of water during phase changes.
Answer
Water starting to boil
An increase in kinetic energy occurs when water starts to boil, as this increases molecular motion.
Answer for screen readers
An increase in kinetic energy occurs when water starts to boil, as this increases molecular motion.
More Information
When water starts to boil, the temperature increases, leading to greater molecular speed and kinetic energy.
Tips
A common mistake is confusing phase changes like freezing or condensation with increases in kinetic energy. These processes actually involve energy release.
Sources
- Kinetic Energy - The Physics Classroom - physicsclassroom.com
- Kinetic energy review (article) | Khan Academy - khanacademy.org
- Kinetic energy - Wikipedia - en.wikipedia.org
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