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: The [[amplitude]] of a [[wave]] gives information on the [[intensity]] of that [[wave]].
The greater the [[amplitude]] of:
*[[Light ]] - The brighter the [[light]].*[[Sound ]] - The louder the [[sound]].*[[Water Wave ]] - The taller the [[wave]].
==Key Stage 4==
===Meaning===
The [[amplitude]] of a [[wave]] is the maximum [[displacement]] of the [[wave]] from its [[Equilibrium Position|equilibrium position]].
===About Amplitude===: The height [[amplitude]] of a [[wave]] from gives information on the [[intensity]] of that [[wave]].The greater the [[amplitude]] of:*[[Light]] - The brighter the [[light]].*[[Sound]] - The louder the [[sound]].*[[Water Wave]] - The taller the middle or "[[Equilibrium Position|equilibrium positionwave]]".