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Waves - Basic Principles
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Waves - Basic Principles
- One important thing to remember is that waves transfer energy and information - without transferring matter.
Wavelength - is the distance from one peak to the next
Frequency - how many complete waves there are per second , it's measured in Hertz (Hz). 1 Hz is 1 wave per second or MHz = 1 000 000 Hz.
Amplitude - height from mid-line to the peak
Speed - how fast it goes
Speed = Frequency x Wavelength or V = F x WL
Wave Speed = Distance / Time
In transverse waves the vibrations are at 90 degrees to the direction of travel of the wave. Eg. Light, EM waves, S-waves, ripples on water and waves on strings and springs.
In longitudinal waves the vibrations are along the same direction as the wave is travelling. Eg. Sound, ultrasound, P-waves and a slinky spring when you push and pull the end.
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- GCSE Physics (P1 Topic 1) Mind Map on Waves - Basic Principles, created by Abdullah Sohail on 19/10/2015.
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- Abdullah Sohail
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