GCSE Physics: Waves I hope you find this useful :) 0.0 / 5 PhysicsWaves and SoundGCSEEdexcel Created by: Mariam :)Created on: 10-05-13 15:59 What type of wave is sound an example of? Longitudinal 1 of 10 What is Amplitude? The height of the wave from the middle to a peak or trough. 2 of 10 What is Frequency? The number of waves that travels past a point in one second. 3 of 10 What is Wavelength? The length of one complete wave. 4 of 10 What is the Period of a wave? The time it takes for one complete wave. 5 of 10 What is the unit used for Frequency? Hz 6 of 10 What is the formula used to calculate Wave Speed? Wave Speed = Frequency x Wavelength 7 of 10 What is the approximate speed of Sound? 330 m/s 8 of 10 What is the formula for the Refractive Index? Refractive Index = sin (i) / sin (r) 9 of 10 What is the formula for the Critical Angle? sin C = 1 / n 10 of 10

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