Sound - Revision history

NRJC at 22:31, 3 September 2020

2020-09-03T22:31:31Z

Ellen References at 09:33, 20 December 2019

2019-12-20T09:33:46Z

Ellen References at 09:05, 29 November 2019

2019-11-29T09:05:11Z

Ellen References at 12:18, 13 November 2019

2019-11-13T12:18:12Z

NRJC at 15:13, 6 April 2019

2019-04-06T15:13:39Z

NRJC at 11:12, 29 March 2019

2019-03-29T11:12:58Z

NRJC: /* About Sound */

2019-02-18T16:52:24Z

‎About Sound

NRJC: /* Interface between Media */

2019-02-18T16:50:15Z

‎Interface between Media

NRJC: /* Key Stage 3 */

2019-02-18T16:49:56Z

‎Key Stage 3

NRJC: /* Key Stage 3 */

2019-02-18T16:36:46Z

‎Key Stage 3

@@ Line 214: / Line 214: @@
 ===Sound Volume===
 : The [[Volume (Sound)|volume]] of a [[sound]] is how loud or quiet it is.
-: [[Volume (Sound)|Volume]] is determined by the [[amplitude]] of the [[wave]] the maximum [[displacement]] of the [[wave]] from its [[Equilibrium Position|equilibrium position]].
+: [[Volume (Sound)|Volume]] is determined by the [[amplitude]] of the [[wave]] the maximum [[displacement]] of the [[wave]] from its [[Equilibrium Position (Physics)|equilibrium position]].
 {| class="wikitable"
 |+ [[Longitudinal Wave]]s cannot be easily pictured so they are represented by [[Transverse Wave]]s on an [[Oscilloscope]] screen.

← Older revision		Revision as of 09:33, 20 December 2019
Line 264:		Line 264:
	:[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 ''Sound; transmission, page 58, GCSE Physics, 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 ''Sound; transmission, page 58, 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 ''Sound; ultrasound, pages 106-108, GCSE Physics, CGP, 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 ''Sound; ultrasound, pages 106-108, GCSE Physics, CGP, Edexcel '']
		+
		+	====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 ''Sound, page 187, 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 ''Sound, pages 59, 60, 64, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 09:05, 29 November 2019
Line 254:		Line 254:
	:[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 ''Sound; speed, pages 179, 228, 229, GCSE Physics; The Complete 9-1 Course for AQA, 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 ''Sound; speed, pages 179, 228, 229, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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 ''Sound; wave, pages 190-1, 206-7, 213, 256-7, GCSE Physics; Student Book, Collins, 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 ''Sound; wave, pages 190-1, 206-7, 213, 256-7, GCSE Physics; Student Book, Collins, AQA '']
		+
		+	====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 ''Sound, pages 103, 104, GCSE Physics, CGP, 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 ''Sound; amplification, page 58, 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 ''Sound; infrasound, page 109, GCSE Physics, CGP, 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 ''Sound; reflection, page 58, 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 ''Sound; speed, pages 23, 95, GCSE Physics, CGP, 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 ''Sound; transmission, page 58, 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 ''Sound; ultrasound, pages 106-108, GCSE Physics, CGP, Edexcel '']

← Older revision		Revision as of 12:18, 13 November 2019
Line 242:		Line 242:
	\| style="height:20px; width:200px; text-align:center;" \|This is a high [[frequency]] [[wave]] showing a [[sound]] with a high [[pitch]].		\| style="height:20px; width:200px; text-align:center;" \|This is a high [[frequency]] [[wave]] showing a [[sound]] with a high [[pitch]].
	\|}		\|}
		+
		+	===References===
		+	====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 ''Sound, page 188, 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 ''Sound, pages 225, 279, 280, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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 ''Sound, speed of, pages 185-6, GCSE Physics, Hodder, 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 ''Sound, speed of, pages 259, GCSE Combined Science Trilogy 2, Hodder, 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 ''Sound; speed of, pages 198-9, 207, GCSE Physics; Student Book, Collins, 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 ''Sound; speed, pages 148, 191, 192, 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 ''Sound; speed, pages 179, 228, 229, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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 ''Sound; wave, pages 190-1, 206-7, 213, 256-7, GCSE Physics; Student Book, Collins, AQA '']

@@ Line 170: / Line 170: @@
 ==Key Stage 4==
 ===Meaning===
-[[Sound]] is a [[longitudinal]] [[wave]] of [[Compression Wave|compression]] and [[rarefaction]] that [[Energy Transfer|transfers energy]] and [[information]] through a [[medium]].
+[[Sound]] is a [[longitudinal]] [[wave]] of [[compression]] and [[rarefaction]] that [[Energy Transfer|transfers energy]] and [[information]] through a [[medium]].
 ===About Sound===
@@ Line 191: / Line 191: @@
 |[[File:VibrateSound1.gif|center]]
 |-
-| style="height:20px; width:200px; text-align:center;" |This animation shows a [[speaker]] creating a [[sound]] by making a [[wave]] of [[Compression Wave|compression]] (dark grey) that passes through the [[air]].
+| style="height:20px; width:200px; text-align:center;" |This animation shows a [[speaker]] creating a [[sound]] by making a [[wave]] of [[compression]] (dark grey) that passes through the [[air]].
 |}

@@ Line 43: / Line 43: @@
 |+ The size of an instrument can affect the pitch. Bigger instruments make a lower pitch sound.
 |-
-|[[File:SaxophoneSoprano.png|center|200px]]
+|[[File:SaxophoneSoprano.png|center|125px]]
-|[[File:SaxophoneAlto.png|center|200px]]
+|[[File:SaxophoneAlto.png|center|125px]]
-|[[File:SaxophoneTenor.png|center|250px]]
+|[[File:SaxophoneTenor.png|center|150px]]
-|[[File:SaxophoneBass.png|center|200px]]
+|[[File:SaxophoneBass.png|center|125px]]
 |-
-| style="height:20px; width:200px; text-align:center;" |A small 'soprano' saxophone makes a high [[Pitch|pitched]] '''sound'''.
+| style="height:20px; width:125px; text-align:center;" |A small 'soprano' saxophone makes a high [[Pitch|pitched]] '''sound'''.
-| style="height:20px; width:200px; text-align:center;" |An 'alto' saxophone makes the second highest [[pitch]].
+| style="height:20px; width:125px; text-align:center;" |An 'alto' saxophone makes the second highest [[pitch]].
-| style="height:20px; width:200px; text-align:center;" |A tenor saxophone makes the second lowest [[pitch]].
+| style="height:20px; width:150px; text-align:center;" |A tenor saxophone makes the second lowest [[pitch]].
-| style="height:20px; width:200px; text-align:center;" |A large 'bass' saxophone makes a low [[Pitch|pitched]] '''sound'''.
+| style="height:20px; width:125px; text-align:center;" |A large 'bass' saxophone makes a low [[Pitch|pitched]] '''sound'''.
 |}
@@ Line 87: / Line 87: @@
 |+ The bigger the [[vibration]], the louder the sound.
 |-
-|[[File:Drumkit.png|center|300px]]
+|[[File:Drumkit.png|center|200px]]
-|[[File:GuitarStrings.png|center|300px]]
+|[[File:GuitarStrings.png|center|200px]]
-|[[File:Tuba.png|center|300px]]
+|[[File:Tuba.png|center|200px]]
 |-
-| style="height:20px; width:300px; text-align:center;" |When you hit a drum hard, it makes a louder '''sound''' because the [[vibration]] is bigger.
+| style="height:20px; width:200px; text-align:center;" |When you hit a drum hard, it makes a louder '''sound''' because the [[vibration]] is bigger.
-| style="height:20px; width:300px; text-align:center;" |When you pluck a guitar string harder, it makes a louder '''sound''' because the [[vibration]] is bigger.
+| style="height:20px; width:200px; text-align:center;" |When you pluck a guitar string harder, it makes a louder '''sound''' because the [[vibration]] is bigger.
-| style="height:20px; width:300px; text-align:center;" |Blow harder down a tube it makes a louder '''sound''' because the [[vibration]] is bigger.
+| style="height:20px; width:200px; text-align:center;" |Blow harder down a tube it makes a louder '''sound''' because the [[vibration]] is bigger.
 |}

@@ Line 175: / Line 175: @@
 : [[Sound]] is a [[Longitudinal Wave|longitudinal wave]] because the direction of [[vibration]] of the [[particle]]s is [[parallel]] to the direction of motion of the [[wave]].
 : [[Sound]] is caused by [[object]]s [[Vibration|vibrating]]. The [[vibration]] is then passed through a [[medium]] as a [[wave]] of [[compression]] and [[rarefaction]].
 : [[Sound]] is transmitted due to [[particle]]s colliding with one another.
 : The [[speed]] of [[sound]] through [[air]] is 340[[m/s]].

@@ Line 204: / Line 204: @@
 |}
-===Interface between Media===
+===The Interface between Media===
 : When [[sound]] meets the [[interface]] between two [[medium|media]] it can be [[transmitted]] (and [[refracted]]), [[reflected]] or [[Absorb (Physics)|absorbed]].

@@ Line 101: / Line 101: @@
 ===About Sound===
-: [[Sound]] is a [[Longitudinal Wave|longitudinal wave]].
+: [[Sound]] is a [[Longitudinal Wave|longitudinal wave]] because the direction of [[vibration]] of the [[particle]]s is [[parallel]] to the direction of motion of the [[wave]].
 : [[Sound]] is caused by [[object]]s [[Vibration|vibrating]]. The [[vibration]] is then passed through a [[medium]] as a [[wave]] of [[compression]].
 : [[Sound]] is transmitted by [[particle]]s colliding with one another.
@@ Line 167: / Line 167: @@
 : [[Sound]] is [[Absorb (physics)|absorbed]] by soft [[material]]s.
 : [[Absorb (physics)|Absorbing]] [[sound]]s is useful in ear defenders and [[sound]] studios where it is important to reduce the [[sound]] that gets past.

@@ Line 118: / Line 118: @@
 |[[File:VibrateSound1.gif|center]]
 |-
-| style="height:20px; width:200px; text-align:center;" |This animation shows a [[speaker]] creating a sound by making a [[wave]] of compression (dark grey) that passes through the [[air]].
+| style="height:20px; width:200px; text-align:center;" |This animation shows a [[speaker]] creating a [[sound]] by making a [[wave]] of compression (dark grey) that passes through the [[air]].
 |}
@@ Line 142: / Line 142: @@
 |[[File:OscilloscopeScreen6.png|center|200px]]
 |-
-| style="height:20px; width:200px; text-align:center;" |This is a high amplitude wave showing a [[sound]] with a high volume, so it is loud.
+| style="height:20px; width:200px; text-align:center;" |This is a high [[amplitude]] wave showing a [[sound]] with a high [[Volume (Sound)|volume]], so it is loud.
 | style="height:20px; width:200px; text-align:center;" |
-| style="height:20px; width:200px; text-align:center;" |This is a low amplitude wave showing a [[sound]] with a low volume so it is quiet.
+| style="height:20px; width:200px; text-align:center;" |This is a low [[amplitude]] wave showing a [[sound]] with a low [[Volume (Sound)|volume]] so it is quiet.
 |}
@@ Line 158: / Line 158: @@
 |[[File:OscilloscopeScreen3.png|center|200px]]
 |-
-| style="height:20px; width:200px; text-align:center;" |This is a low frequency wave showing a [[sound]] with a low pitch, so it is a deep sound.
+| style="height:20px; width:200px; text-align:center;" |This is a low [[frequency]] wave showing a [[sound]] with a low pitch, so it is a deep [[sound]].
 | style="height:20px; width:200px; text-align:center;" |
-| style="height:20px; width:200px; text-align:center;" |This is a high frequency wave showing a [[sound]] with a high pitch.
+| style="height:20px; width:200px; text-align:center;" |This is a high [[frequency]] [[wave]] showing a [[sound]] with a high [[pitch]].
 |}