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Waves - Coggle Diagram
Waves
Transverse
Particles vibrate up and down
Trough
Lowest point
Water, Electromagnetic waves
Crest
Highest point
Longitudinal
Sound, Ultrasound waves, Spring
Particles vibrate back and forth
Compression
Region where particles are furthest apart
Rarefaction
Region where particles are closest together
Amplitude (A)
Metres (m)
Maximum displacement of a point from its rest position
Period (T)
Seconds (s)
Time taken for 1 complete wave
Wavelength (λ)
Metres (m)
Shortest distance between 2 points with same phase of vibration
Wave speed (v)
ms-1
Distance covered / Time taken (s)
v = fλ
Constant wave speed
Different types of waves travel at different speeds in the same medium
Frequency (f)
Hertz (Hz)
Number of complete waves per second
1 / T
Number of waves / Time taken (s)
Transfer energy without transferring physical matter
Medium: Vacuum, Air, Liquid, Solid
Particles vibrate up and down with the same frequency
Wave front
Imaginary line that joins all adjacent points in the phase
Caused by a disturbance or vibration
