Exam-style question
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What is the primary consequence of resonance in forced vibrations?.
- A.It leads to a decrease in energy transfer.
- B.It causes a constant amplitude regardless of frequency.
- C.It can increase the amplitude of vibrations significantly.
- D.It eliminates all vibrations.
Model answer
What a good answer should say
- It can increase the amplitude of vibrations significantly.
Explanation
Why this works
In forced vibrations, when the frequency of the external force matches the natural frequency of the system, resonance occurs, leading to a significant increase in amplitude, which can be both useful and hazardous.
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