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The height of a [[wave]] from the [[equilibrium position|middle]].
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==Key Stage 3==
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===Meaning===
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[[File:Amplitude.png|right|300px|thumb|This diagram shows the [[amplitude]] of a [[wave]].]]
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The [[amplitude]] of a [[wave]] is the distance between the peak of a [[wave]] and the midpoint of the [[wave]].
 +
 
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===About Amplitude===
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: The [[amplitude]] of a [[wave]] gives information on the [[intensity]] of that [[wave]].
 +
The greater the [[amplitude]] of:
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*[[Light]] - The brighter the [[light]].
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*[[Sound]] - The louder the [[sound]].
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*[[Water Wave]] - The taller the [[wave]].
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{| class="wikitable"
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|-
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|[[File:OscilloscopeScreen4.png|center|200px]]
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|[[File:OscilloscopeScreen5.png|center|200px]]
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|[[File:OscilloscopeScreen6.png|center|200px]]
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|-
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| style="height:20px; width:200px; text-align:center;" |This is a high [[amplitude]] [[wave]].
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| style="height:20px; width:200px; text-align:center;" |
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| style="height:20px; width:200px; text-align:center;" |This is a low [[amplitude]] [[wave]].
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|}
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==Key Stage 4==
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===Meaning===
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The [[amplitude]] of a [[wave]] is the maximum [[displacement]] of the [[wave]] from its [[Equilibrium Position (Physics)|equilibrium position]].
 +
 
 +
===About Amplitude===
 +
: 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]].
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:OscilloscopeScreen4.png|center|200px]]
 +
|[[File:OscilloscopeScreen5.png|center|200px]]
 +
|[[File:OscilloscopeScreen6.png|center|200px]]
 +
|-
 +
| 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]].
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|}
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===References===
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====AQA====
 +
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Amplitude (A), page 183, GCSE Physics, Hodder, AQA']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09676 ''Amplitude (waves), page 219, GCSE Combined Science; The Revision Guide, CGP, AQA']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Amplitude, page 189, GCSE Combined Science Trilogy; Physics, CGP, AQA']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Amplitude, page 226, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA']
 +
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac16 ''Amplitude, page 73, GCSE Physics; The Revision Guide, CGP, AQA']
 +
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Amplitude, pages 176, 182, GCSE Physics; Third Edition, Oxford University Press, AQA']
 +
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Amplitude, pages 191-2, GCSE Physics; Student Book, Collins, AQA']
 +
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Amplitude, pages 257, GCSE Combined Science Trilogy 2, Hodder, AQA']
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====Edexcel====
 +
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Amplitude, page 164, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''Amplitude, page 32, GCSE Physics; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Amplitude, page 331, GCSE Combined Science, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Amplitude, page 49, GCSE Physics, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Amplitude, page 91, GCSE Physics, CGP, Edexcel '']
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====OCR====
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:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Amplitude (waves), pages 142-143, Gateway GCSE Physics, Oxford, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Amplitude, page 186, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Amplitude, page 59, Gateway GCSE Physics; The Revision Guide, CGP, OCR  '']
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==Key Stage 5==
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===Meaning===
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[[Amplitude]] is the maximum [[displacement]] from [[Equilibrium Position (Physics)|equilibrium]] in an [[oscillating]] [[system]].
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===About Amplitude===
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*Measures the strength or [[intensity]] of a [[wave]].
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*Larger [[amplitude]] means more [[energy]] is carried by the wave.
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*Can be [[measure]]d  in various units depending on the type of [[wave]] (e.g., [[metre]]s for [[Mechanical Wave|mechanical waves]], [[volt]]s for electrical signals).
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*In a [[Sound|sound wave]], [[amplitude]] determines the loudness.
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*In a [[Visible Light|light wave]], [[amplitude]] affects the brightness.
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*[[Amplitude]] can be affected by damping, which reduces the [[amplitude]] over [[time]].
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*In [[Simple Harmonic Motion|simple harmonic motion (SHM)]], [[amplitude]] remains constant if no [[energy]] is lost.
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*[[Amplitude Modulation|'''Amplitude''' modulation (AM)]] is a technique used in electronic communication, most commonly for transmitting information via a [[radio]] [[Carrier Wave|carrier wave]].
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===Examples===
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*The loudness of a [[sound]] is related to the [[amplitude]] of the [[sound]] wave.
 +
*The brightness of a [[Visible Light|light]] [[wave]] increases with its [[amplitude]].

Latest revision as of 10:56, 19 May 2024

Contents

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:

 
 
 
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:

 
 
 
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


Key Stage 5

Meaning

Amplitude is the maximum displacement from equilibrium in an oscillating system.

About Amplitude

Examples

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