Question

Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard

Answer 1

Sound is produced only due to vibrations of particles. More the vibration, louder the sound. If we strike table lightly, table does not vibrate much, so soft sound is produced. However, if we strike the table hard, more vibration takes place and we hear a louder sound.

Answer 2

If we impact a table gently, that table top vibrates with low amplitude and thus a soft sound is created by applying less energy.

Explanation:

• If we impact a table gently, that table top vibrates with low amplitude and thus a smooth sound is created by providing less energy.
• However, if we strike the table hard, that table top penetrates with a higher amplitude by adding greater energy, and thus a loud sound is generated,
• since the intensity of the noise depends on the strength with which an object is induced to vibrate and eventually results in increased loudness.

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