Exam-style question
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What is the key difference between free vibrations and forced vibrations, and in what scenarios might each occur?.
Model answer
What a good answer should say
- The key difference is that free vibrations occur without external forces, while forced vibrations require an external force to maintain oscillation.
- Free vibrations are seen in systems like a swinging pendulum, while forced vibrations occur in systems like a child on a swing being pushed.
Explanation
Why this works
This answer effectively identifies the most important difference between the two types of vibrations and provides relevant examples for each scenario. It demonstrates a clear understanding of the concepts and their applications in real-world situations.
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