additions to physics g 2.0 / 5 based on 1 rating ? PhysicsGCSEAll boards Created by: PhoebeCreated on: 17-06-12 20:34 Measuring Waves The amplitude of a wave is the height of the wave crest or the depth of the wave trough from the middle The bigger the amplitude of the waves, the more energy they carry The wavelength of the waves is the distance from one wave crest to another One wave crest passing a point each second is a frequency of 1Hz Frequency: the number of wave crests passing a fixed point every second 1 of 3 Sound Sound is caused by mechanical vibrations in a substance Sound cannot travel though a vacuum (e.g. space) Sound waves are longitudinal Sound waves need a medium (substance) in which to travel through Echoes are due to sound waves reflected from a smooth hard surface 2 of 3 Musical Sounds The pitch of a note increases if the frequency of the sound wave increases The loudness of a note increases if the amplitude of the sound wave increases 3 of 3
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