7.1. Progressive waves
A subsection of Physics, 9702, through 7. Waves
Listing 10 of 202 questions
Explain what is meant by the following quantities for a wave on the surface of water: displacement and amplitude, displacement amplitude frequency and time period. frequency time period represents waves on the surface of water in a ripple tank at one particular instant of time. 15 mm ripple tank 12 mm vibrator 25 cm direction of travel of waves water side view (not to scale) A vibrator moves the surface of the water to produce the waves of frequency f. The speed of the waves is 7.5 cm s−1. Where the waves travel on the water surface, the maximum depth of the water is 15 mm and the minimum depth is 12 mm. Calculate, for the waves, 1. the amplitude, amplitude = mm 2. the wavelength. wavelength = m Calculate the time period of the oscillations of the vibrator. time period = s State and explain whether the waves on the surface of the water shown in are progressive or stationary, transverse or longitudinal.
9702_s14_qp_21
THEORY
2014
Paper 2, Variant 1
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