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Question 250

When sound waves travel from cool air into warm air, they refract (change direction). What causes this refraction?

A

The frequency of the sound waves changes.

B

The amplitude of the sound waves changes.

C

The speed of the sound waves changes.

D

The pitch of the sound waves changes.

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