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Question 162

A musician plays a steady note on a flute. An observer notices that, although the pitch of the note remains unchanged, the loudness of the sound gradually decreases over several seconds.

Which row correctly describes how the amplitude and the frequency of the sound waves change during this time?

A

Amplitude: constant; Frequency: constant

B

Amplitude: constant; Frequency: varying

C

Amplitude: varying; Frequency: constant

D

Amplitude: varying; Frequency: varying

Markscheme

Sound Questions

  1. IGCSE
  2. /Physics
  3. /Sound

295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank