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==Key Stage 4==
===Meaning===
The [[amplitude]] of a [[wave]] is the maximum [[displacement]] of the [[wave]] from its [[Equilibrium Position(Physics)|equilibrium position]].
===About Amplitude===
|[[File:OscilloscopeScreen6.png|center|200px]]
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| style="height:20px; width:200px; text-align:center;" |This is a high [[amplitude]] [[wave]] shown by the large [[displacement]] between the peak (or trough) of the [[wave]] and the [[Equilibrium Position(Physics)|equilibrium position]].
| style="height:20px; width:200px; text-align:center;" |
| style="height:20px; width:200px; text-align:center;" |This is a low [[amplitude]] [[wave]] shown by the small [[displacement]] between the peak (or trough) of the [[wave]] and the [[Equilibrium Position(Physics)|equilibrium position]].
|}