Define what a peak of a wave is (1 mark)
The top of the wave/ The zenith of the wave, above the equilibrium
Define what a trough is (1 mark)
The bottom part of the wave, under the equilibrium
Define Periodic Time, and name the unit for it (2 marks)
Time taken for one complete wave, measured in seconds (s)
Define amplitude, and name the symbol used for amplitude (2 marks)
The Maximum displacement from the equilibrium, symbolised with a capital A
Define displacement, and name the units for it (2 marks)
The change in height of the wave from the position of the equilibrium, measured in m
Define frequency, and name the units for it (2 marks)
The number of waves in 1 second, measured in Hz or s^-1
Define Oscillation (1 mark)
Regular repeating motion/ vibration of a wave
Define wavelength, and name the units used for it (2 marks)
The distance between peak to peak or trough to trough, measured in m
