If the handle of a vibrating tuning fork is held solidly against a table, the so

Question

If the handle of a vibrating tuning fork is held solidly against a table, the sound from the tuning fork becomes louder. Why, and how will this affect the length of time the fork keeps vibrating?

1. Because a more massive surface is set into vibration, the sound becomes louder and the length of time the fork keeps vibrating becomes longer.

2. Because a more massive surface is set into more lower frequency vibration, the sound becomes louder. By conservation of energy, this reduces the length of time the fork keeps vibrating.

3. Because a greater surface is set into vibration, the sound becomes louder. By conservation of momentum, this reduces the length of time the fork keeps vibrating.

4. Because a greater surface is set into vibration, the sound becomes louder. By conservation of energy, this reduces the length of time the fork keeps vibrating.

Explanation / Answer

4. Because a greater surface is set into vibration, the sound becomes louder. By conservation of energy, this reduces the length of time the fork keeps vibrating.

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