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Type: Multiple-Choice
Category: Waves and Sound
Level: Grade 7
Score: 1
Tags: Loudness, amplitude
Author: VenkatTIPS
Last Modified: a year ago

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Waves and Sound Question

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Grade 7 Waves and Sound

A boy felt like the sound level in his room was too high. He turned the knob of his music system to make it quieter. What physical property of the sound changed due to this and how did it change?
  1. The frequency increased
  2. The amplitude increased
  3. The amplitude decreased
  4. The frequency decreased