6 A student observes waves on the surface of water in a tank. The waves all have the same wavelength.
(a) The student measures the wavelength of the waves by measuring the distance between one peak and the next peak.
Describe a more accurate method for determining the wavelength.
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(b) The wavelength of the waves is 4.0 cm and their frequency is 6.0 Hz .
Calculate the wave speed.
wave speed = \( \qquad \) cm/s
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(c) Fig. 6.1 shows water waves in the tank travelling from deep water to shallow water.
Fig. 6.1
State and explain what happens to the waves as they move from deep water to shallow water.
name of effect \( \qquad \)
explanation \( \qquad \)
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