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Science Revision Mind Map, Cells, Units and Quantities, Waves, Energy -…
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Waves
Absorb
When a substance 'takes in' the energy of a wave, reducing it's intensity
Amplitude
The maximum height of a wave from its resting position - the greater the amplitude of a sound the louder it' is
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Longitudinal
A type of wave where the vibrations causing it are in the same direction as the direction of travel, eg. sound
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Refraction
When a wave changes speed as it crosses a boundry between two substances with diffrent densities causing it to change direction
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Transverse
A type of wave where the vibrations causing it are at right-angles to the direction of travel, eg light waves.
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