Exam-style question
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Explain the principle of conservation of energy and provide an example of how it applies in a closed system.
Model answer
What a good answer should say
- The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.
- For example, in a pendulum, the potential energy at the highest point is converted to kinetic energy at the lowest point, and vice versa, demonstrating energy transformation while the total energy remains constant.
Explanation
Why this works
This answer effectively explains the conservation of energy principle and provides a clear example, testing the student's understanding of energy transformations in a closed system.
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