Physics 0625 · IGCSE · Sound

Sound — practice question

The speed of sound is not the same in different states of matter. In liquid water, the speed of sound is $1500\ \text{m s}^{-1}$. Which row gives the correct comparison between the speed of sound in ice and the speed of sound in water vapour, compared with the speed of sound in water?

  • Aspeed of sound in ice: less than $1500\ \text{m s}^{-1}$; speed of sound in steam: less than $1500\ \text{m s}^{-1}$
  • Bspeed of sound in ice: less than $1500\ \text{m s}^{-1}$; speed of sound in steam: more than $1500\ \text{m s}^{-1}$
  • Cspeed of sound in ice: more than $1500\ \text{m s}^{-1}$; speed of sound in steam: less than $1500\ \text{m s}^{-1}$
  • Dspeed of sound in ice: more than $1500\ \text{m s}^{-1}$; speed of sound in steam: more than $1500\ \text{m s}^{-1}$

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