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Question 167

The speed of sound varies depending on the state of matter of the medium.

The speed of sound in liquid ethanol is approximately 1200 m s-1.

Which row in the table correctly compares the speed of sound in solid ethanol and ethanol vapour with the speed of sound in liquid ethanol?

Speed of sound in solid ethanol (m s−1\text{m s}^{-1}m s−1)Speed of sound in ethanol vapour (m s−1\text{m s}^{-1}m s−1)
Aless than 1200less than 1200
Bless than 1200more than 1200
Cmore than 1200less than 1200
Dmore than 1200more than 1200
A

Row A

B

Row B

C

Row C

D

Row D

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.

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