Frequency - Revision history

Ellen References at 09:19, 11 December 2019

2019-12-11T09:19:18Z

Ellen References at 11:22, 20 November 2019

2019-11-20T11:22:28Z

Ellen References at 10:29, 5 November 2019

2019-11-05T10:29:37Z

NRJC: /* Equation 3 */

2019-05-13T22:14:34Z

‎Equation 3

NRJC at 19:52, 7 April 2019

2019-04-07T19:52:55Z

NRJC: /* Key Stage 4 */

2019-02-18T16:13:02Z

‎Key Stage 4

NRJC: /* Finding Frequency from Wavelength and Wave Speed */

2019-02-18T15:31:47Z

‎Finding Frequency from Wavelength and Wave Speed

NRJC: /* Example Calculations */

2019-02-18T15:31:21Z

‎Example Calculations

NRJC: /* Equation */

2019-02-18T14:56:14Z

‎Equation

NRJC at 13:27, 18 February 2019

2019-02-18T13:27:46Z

← Older revision		Revision as of 09:19, 11 December 2019
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	:[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 ''Frequency, pages 331, 340, GCSE Combined Science, Pearson 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 ''Frequency, pages 331, 340, 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 ''Frequency, pages 49, 72, 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 ''Frequency, pages 49, 72, GCSE Physics, Pearson Edexcel '']
		+
		+	===References===
		+	:[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 ''Frequency, pages 137, 142, 149, , 153, 179, 256-157, 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 ''Frequency, pages 186-188, 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 ''Frequency, pages 59-61, 64, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 11:22, 20 November 2019
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	:[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 ''Frequency; of mains supply, page 89, 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 ''Frequency; of mains supply, page 89, 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 ''Frequency; table, pages 40-1, 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 ''Frequency; table, pages 40-1, 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 ''Frequency (waves), page 91, 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 ''Frequency (waves); of hearing, page 104, 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 ''Frequency (waves); of infrasound, page 109, 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 ''Frequency (waves); of ultrasound, page 106, GCSE Physics, CGP, 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 ''Frequency, pages 164-166, 168, 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 ''Frequency, pages 32-34, 43, 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 ''Frequency, pages 331, 340, 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 ''Frequency, pages 49, 72, GCSE Physics, Pearson Edexcel '']

← Older revision		Revision as of 10:29, 5 November 2019
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	<math> f = 40000Hz</math>		<math> f = 40000Hz</math>
	\|}		\|}
		+
		+	===References===
		+	====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 ''Frequency (f), pages 50-1, 583, GCSE Physics, Hodder, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac201 ''Frequency, page 73, GCSE Physics; 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 ''Frequency, pages 189, 190, GCSE Combined Science Trilogy; Physics, 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 ''Frequency, pages 190-3, 200-1, 206-9, 213-15, 218, 222, 224, 236-7, 275, GCSE Physics; Student Book, Collins, 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 ''Frequency, pages 226, 227, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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 ''Frequency, pages 257, GCSE Combined Science Trilogy 2, Hodder, 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 ''Frequency; human hearing range, page 280, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac202 ''Frequency; human hearing range, page 88, GCSE Physics; The Revision Guide, CGP, 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 ''Frequency; Measurement of, pages 260, GCSE Combined Science Trilogy 2, Hodder, 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 ''Frequency; of EM waves, pages 200, 203, 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 ''Frequency; of EM waves, pages 242, 245, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac203 ''Frequency; of EM waves, pages 76, 81, GCSE Physics; The Revision Guide, 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 ''Frequency; of mains electricity, page 66, GCSE Physics; Student Book, Collins, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac204 ''Frequency; of mains supply, page 31, GCSE Physics; 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 ''Frequency; of mains supply, page 86, 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 ''Frequency; of mains supply, page 89, 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 ''Frequency; table, pages 40-1, GCSE Physics; Student Book, Collins, AQA '']

@@ Line 84: / Line 84: @@
 <math> f = \frac{v}{\lambda}</math>
-Where:
+Where
 <math> \lambda</math> = The [[wavelength]] of the [[wave]].

@@ Line 96: / Line 96: @@
 {| class="wikitable"
 | style="height:20px; width:300px; text-align:center;" |Calculate the [[frequency]] of a [[wave]] with a [[period]] of 0.04 seconds.
-| style="height:20px; width:300px; text-align:center;" |A giant pendulum takes 16 seconds to make one complete [[oscillation]]. Calculate the [[frequency]] of the [[pendulum]].
+| style="height:20px; width:300px; text-align:center;" |A giant pendulum takes 16 seconds to make one complete [[oscillation]]. Calculate the [[frequency]] of the pendulum.
 |-
 | style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
@@ Line 123: / Line 123: @@
 ====Finding Frequency from the number of waves and time taken====
 {| class="wikitable"
-| style="height:20px; width:300px; text-align:center;" |A scientist wants to determine the [[frequency]] of a [[pendulum]]. They count that the [[pendulum]] [[oscillate]]s 15 times over 20 seconds. Calculate the [[frequency]] of the [[pendulum]].
+| style="height:20px; width:300px; text-align:center;" |A scientist wants to determine the [[frequency]] of a pendulum. They count that the pendulum [[oscillate]]s 15 times over 20 seconds. Calculate the [[frequency]] of the pendulum.
 | style="height:20px; width:300px; text-align:center;" |A sailor notices a buoy bounce up and down 24 times over a minute. Calculate the [[frequency]] of the [[wave]]s.
 |-

@@ Line 35: / Line 35: @@
 : [[Frequency]] is a [[scalar]] quantity because it has [[magnitude]] but no direction.
 : The [[SI Unit]] of [[frequency]] is [[Hertz]] (Hz).
 {| class="wikitable"
 |-
@@ Line 46: / Line 47: @@
 : In [[sound]] [[frequency]] is known as [[pitch]]. A high [[pitch]] is a high [[frequency]].
 : In [[light]] [[frequency]] affects the [[colour]] of the [[light]]. Red is a low [[frequency]] and violet is a high [[frequency]].
 : [[Frequency]] can be found by counting the number of [[wave]]s which pass a point in a given [[time]] and dividing this by the [[time]].

@@ Line 154: / Line 154: @@
 ====Finding Frequency from Wavelength and Wave Speed====
 {| class="wikitable"
-| style="height:20px; width:200px; text-align:center;" |A [[microwave]] travelling at a speed of 3.0x10<sup>8</sup>m/s has a [[wavelength]] of 0.051m. Calculate the [[frequency]] of the [[wave]] correct to two [[Significant Figures|significant figures]].
+| style="height:20px; width:300px; text-align:center;" |A [[microwave]] travelling at a speed of 3.0x10<sup>8</sup>m/s has a [[wavelength]] of 0.051m. Calculate the [[frequency]] of the [[wave]] correct to two [[Significant Figures|significant figures]].
-| style="height:20px; width:200px; text-align:center;" |An [[ultrasound]] [[wave]] of [[wavelength]] 0.125m passes through an [[Iron]] block at a [[speed]] of 5000m/s. Calculate the [[frequency]] of the [[wave]] correct to two [[Significant Figures|significant figures]].
+| style="height:20px; width:300px; text-align:center;" |An [[ultrasound]] [[wave]] of [[wavelength]] 0.125m passes through an [[Iron]] block at a [[speed]] of 5000m/s. Calculate the [[frequency]] of the [[wave]] correct to two [[Significant Figures|significant figures]].
 |-
-| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
+| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 v = 3.0x10<sup>8</sup>m/s
 λ = 0.051m
-| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
+| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 v = 5000m/s
@@ Line 168: / Line 168: @@
 λ = 0.125m
 |-
-| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
+| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 <math> f = \frac{v}{\lambda}</math>
@@ Line 178: / Line 178: @@
 <math> f \approx 5900000000Hz</math>
-| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
+| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 <math> f = \frac{v}{\lambda}</math>

@@ Line 91: / Line 91: @@
 ===Example Calculations===
 {| class="wikitable"
 | style="height:20px; width:300px; text-align:center;" |A scientist wants to determine the [[frequency]] of a [[pendulum]]. They count that the [[pendulum]] [[oscillate]]s 15 times over 20 seconds. Calculate the [[frequency]] of the [[pendulum]].
@@ Line 121: / Line 150: @@
 <math>f = 0.4Hz</math>
 |}

@@ Line 49: / Line 49: @@
 ===Equation===
-''NB: You do not need to remember these equations but you should know how to find [[frequency]] given the number of waves passing a point and the time taken.''
+====Equation 1====
 Frequency = 1/(Period)
@@ Line 62: / Line 62: @@
 ====Equation 2====
 Frequency = (Number of Waves which pass a point)/(Time taken for waves to pass a point)
@@ Line 73: / Line 74: @@
 t = The [[time]] taken for those [[wave]]s to pass a point.
 ===Example Calculations===

@@ Line 4: / Line 4: @@
 ===About Frequency===
-: [[Frequency]] is [[measure]]d in [[Hertz]] ([[Hz]]).
+: [[Frequency]] is [[measure]]d in [[Hertz]] (Hz).
 {| class="wikitable"
 |-
@@ Line 33: / Line 33: @@
 ===About Frequency===
-: [[Frequency]] is [[measure]]d in [[Hertz]] ([[Hz]]).
+: [[Frequency]] is a [[scalar]] quantity because it has [[magnitude]] but no direction.
 {| class="wikitable"
 |-