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Waves - Coggle Diagram
Waves
Parts of a Wave
Speed, c
Distance travelled by the wave per unit time, (units are m/s)
Phase
The position of a certain point on a wave cycle, (units are radians, degrees or fractions of a cycle)
Wavelength, λ
The length of one whole oscillation (e.g. the distance between successive peaks/troughs) (units are m)
Phase difference
How much a particle/wave lags behind another particle/wave, (units are radians, degrees or fractions of a cycle)
Frequency, f
The number of complete oscillations passing through a point per second,(units are Hz)
Period, T
Time taken for one full oscillation, (units are s)
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Types of waves
Longitudinal Waves
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Sound is an example of a longitudinal wave, and they can be demonstrated by pushing a slinky horizontally.
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Transverse Waves
Transverse waves can be demonstrated by shaking a slinky vertically or through the waves seen on a string, when it's attached to a signal generator.
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Intensity
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The intensity of a wave is defined as the wave power transmitted per unit area at right angles to the wave velocity.
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Electromagnetic Waves
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The regions of the electromagnetic spectrum in order of increasing wavelength are: γ-rays, X-rays,, ultraviolet, visible, infrared, microwaves and radio waves.
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