GCSE Questions - Waves
Q18. Look at this diagram of a water wave.
![](graphics/water.png)
(a)
(i) What is the wavelength of this wave?
[1 mark]
(ii) What is the amplitude of this wave?
[1 mark]
(iii) The wavelength of the wave is changed to 25cm. Two waves are produced each second.
Calculate the speed of the wave in m/s.
[4 marks]
(b) Water waves are transverse and sound waves are longitudinal.
(i) Describe how water particles move in a transverse water wave.
[1 mark]
(ii) Describe how air particles move in a longitudinal sound wave.
[1 mark]
(Total 8 marks)
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