Mechanical Vibrations quizzes
Why machines vibrate, how resonance amplifies motion, and how damping helps control unwanted movement.
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Keeping the same spring, how much must the mass change to halve the natural frequency?
- Multiply the mass by eight
- Multiply the mass by four
- Multiply the mass by two
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Answer: Multiply the mass by four
Since frequency goes as 1/√m, halving it needs √m to double, which means four times the mass.
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