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Amplitude

Key Stage 3

Meaning

This diagram shows the amplitude of a wave.

The amplitude of a wave is the distance between the peak of a wave and the midpoint of the wave.

About Amplitude

The amplitude of a wave gives information on the intensity of that wave.

The greater the amplitude of:

OscilloscopeScreen4.png
OscilloscopeScreen5.png
OscilloscopeScreen6.png
This is a high amplitude wave. This is a low amplitude wave.


Key Stage 4

Meaning

The amplitude of a wave is the maximum displacement of the wave from its equilibrium position.

About Amplitude

The amplitude of a wave gives information on the intensity of that wave.

The greater the amplitude of:

OscilloscopeScreen4.png
OscilloscopeScreen5.png
OscilloscopeScreen6.png
This is a high amplitude wave shown by the large displacement between the peak (or trough) of the wave and the equilibrium position. This is a low amplitude wave shown by the small displacement between the peak (or trough) of the wave and the equilibrium position.

References

AQA

Amplitude (A), page 183, GCSE Physics, Hodder, AQA'
Amplitude (waves), page 219, GCSE Combined Science; The Revision Guide, CGP, AQA'
Amplitude, page 189, GCSE Combined Science Trilogy; Physics, CGP, AQA'
Amplitude, page 226, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA'
Amplitude, page 73, GCSE Physics; The Revision Guide, CGP, AQA'
Amplitude, pages 176, 182, GCSE Physics; Third Edition, Oxford University Press, AQA'
Amplitude, pages 191-2, GCSE Physics; Student Book, Collins, AQA'
Amplitude, pages 257, GCSE Combined Science Trilogy 2, Hodder, AQA'

Edexcel

Amplitude, page 164, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Amplitude, page 32, GCSE Physics; The Revision Guide, CGP, Edexcel
Amplitude, page 331, GCSE Combined Science, Pearson Edexcel
Amplitude, page 49, GCSE Physics, Pearson Edexcel
Amplitude, page 91, GCSE Physics, CGP, Edexcel

OCR

Amplitude (waves), pages 142-143, Gateway GCSE Physics, Oxford, OCR
Amplitude, page 186, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Amplitude, page 59, Gateway GCSE Physics; The Revision Guide, CGP, OCR