Which shows an increase in kinetic energy?
Understand the Problem
The question is asking which of the listed scenarios indicates an increase in kinetic energy. We will seek to identify the process where particles gain energy and move more freely.
Answer
A chocolate bar melting.
The final answer is a chocolate bar melting.
Answer for screen readers
The final answer is a chocolate bar melting.
More Information
Melting involves an increase in temperature and freedom of motion, thus increasing kinetic energy.
Tips
A common mistake is to confuse changes in potential energy, such as freezing, for increases in kinetic energy.
Sources
- Kinetic Energy - The Physics Classroom - physicsclassroom.com
- Kinetic energy review (article) | Khan Academy - khanacademy.org
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