Elastic Potential Energy Store - Revision history

Ellen References at 01:44, 5 December 2019

2019-12-05T01:44:59Z

Ellen References at 09:14, 19 November 2019

2019-11-19T09:14:53Z

Ellen References at 10:32, 4 November 2019

2019-11-04T10:32:05Z

NRJC at 16:46, 13 April 2019

2019-04-13T16:46:40Z

NRJC: /* Key Stage 4 */

2019-04-13T16:36:46Z

‎Key Stage 4

NRJC at 10:27, 8 April 2019

2019-04-08T10:27:18Z

NRJC: /* Calculating Elastic Potential Energy */

2019-01-31T12:00:04Z

‎Calculating Elastic Potential Energy

NRJC: /* Calculating Spring Constant */

2019-01-31T11:14:25Z

‎Calculating Spring Constant

NRJC: /* Calculating Spring Constant */

2019-01-31T11:13:55Z

‎Calculating Spring Constant

NRJC: /* Key Stage 4 */

2019-01-31T11:13:31Z

‎Key Stage 4

← Older revision		Revision as of 01:44, 5 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 ''Elastic potential energy, page 316, 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 ''Elastic potential energy, page 316, 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 ''Elastic potential energy, page 34, 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 ''Elastic potential energy, page 34, GCSE Physics, Pearson 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 ''Elastic potential energy stores, pages 171, 202, 206, 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 ''Elastic potential energy stores, pages 37, 82, 86, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 09:14, 19 November 2019
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	:[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 ''Elastic potential energy stores, pages 21, 27, 28, 141, GCSE Combined Science Trilogy; Physics, 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 ''Elastic potential energy stores, pages 21, 27, 28, 141, 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 ''Elastic potential energy stores, pages 22, 28, 29, 161, 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 ''Elastic potential energy stores, pages 22, 28, 29, 161, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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 ''Elastic potential energy stores, pages 61, 325, GCSE Physics, 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 ''Elastic potential energy, page 316, 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 ''Elastic potential energy, page 34, GCSE Physics, Pearson Edexcel '']

← Older revision		Revision as of 10:32, 4 November 2019
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	<math>E_e \approx 32J</math>		<math>E_e \approx 32J</math>
	\|}		\|}
		+
		+
		+	===References===
		+	====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=f0dfb66dafcb0c6e9449e7b1a4ae1ac110 ''Elastic potential energy stores, pages 12, 55, 56, GCSE Physics; The Revision Guide, CGP, 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=ad276ad49df77ab4b40ab4fd0fe09874 ''Elastic potential energy stores, pages 169, 206, 207, 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 ''Elastic potential energy stores, pages 21, 27, 28, 141, 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 ''Elastic potential energy stores, pages 22, 28, 29, 161, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']

@@ Line 47: / Line 47: @@
 ===Calculating Elastic Potential Energy===
 {| class="wikitable"
 | style="height:20px; width:200px; text-align:center;" |A bow with a spring constant of 400N/m is stretched 0.5m with a force of 200N. Calculate the elastic potential store of the bow.

@@ Line 20: / Line 20: @@
 ==Key Stage 4==
 ===Meaning===
 The '''elastic potential energy store''' is an [[Energy Store|energy store]] associated with stretched, squashed and twisted elastic [[object]]s.

@@ Line 28: / Line 28: @@
 : The '''elastic potential energy store''' of an [[object]] is related to two [[property|properties]] of the [[object]]:
 *The [[Spring Constant]] of the [[object]]. - The amount of [[force]] needed to stretch or squash it's shape by a given distance. The greater the [[Spring Constant|spring constant]] the greater the '''elastic potential energy''' stored.
-*The [[Extension (Physics)|extension]] of the [[object]]. - The distance that the [[object]] has been stretched or squashed. The greater the [[Extension (Physics)|extension]] the greater the '''elastic potential energy''' stored.
+*The [[extension]] of the [[object]]. - The distance that the [[object]] has been stretched or squashed. The greater the [[extension]] the greater the '''elastic potential energy''' stored.
 ===Equation===
@@ Line 43: / Line 43: @@
 k = The [[Spring Constant|spring constant]] of the [[object]].
-x = The [[Extension (Physics)|extension]] of the [[object]].
+x = The [[extension]] of the [[object]].
 ===Calculating Elastic Potential Energy===
@@ Line 71: / Line 71: @@
 Final Length = 9.1m
-'''Find the [[Extension (Physics)|extension]].'''
+'''Find the [[extension]].'''
 x = Final Length - Original Length = 9.1 - 0.1 = 9.0m

@@ Line 75: / Line 75: @@
 x = Final Length - Original Length = 9.1 - 0.1 = 9.0m
 |-
-| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and solve.'''
+| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 <math>E_e = \frac{1}{2} k x^2</math>
@@ Line 84: / Line 84: @@
 <math>E_e = 50J</math>
-| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and solve.'''
+| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 <math>E_e = \frac{1}{2} k x^2</math>
@@ Line 95: / Line 95: @@
 <math>E_e \approx 20,000J</math>
-| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and solve.'''
+| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 <math>E_e = \frac{1}{2} k x^2</math>

@@ Line 103: / Line 103: @@
 <math>E_e = \frac{1}{2} \times 0.80 \times 81</math>
-<math>E_e = 32.4</math>
+<math>E_e = 32.4J</math>
 <math>E_e \approx 32J</math>
 |}

← Older revision		Revision as of 11:13, 31 January 2019
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	x = The [[Extension (Physics)\|extension]] of the [[object]].		x = The [[Extension (Physics)\|extension]] of the [[object]].
		+
		+	===Calculating Spring Constant===
		+	{\| class="wikitable"
		+	\| style="height:20px; width:200px; text-align:center;" \|A bow with a spring constant of 400N/m is stretched 0.5m with a force of 200N. Calculate the elastic potential store of the bow.
		+	\| style="height:20px; width:200px; text-align:center;" \|A bungee cord with a spring constant of 45N/m stretches by 30m. Calculate the elastic potential store of the cord.
		+
		+	Give your answer correct to 2 [[Significant Figures\|significant figures]].
		+	\| style="height:20px; width:200px; text-align:center;" \|A slinky spring of length 0.1m and spring constant 0.80N/m is stretched to a length of 9.1m. Calculate the elastic potential store of the slinky.
		+
		+	Give your answer correct to 2 [[Significant Figures\|significant figures]].
		+	\|-
		+	\| style="height:20px; width:200px; text-align:left;" \|'''1. State the known quantities'''
		+	k = 400N/m
		+
		+	x = 0.5m
		+	\| style="height:20px; width:200px; text-align:left;" \|'''1. State the known quantities'''
		+	k = 45N/m
		+
		+	x = 30m
		+	\| style="height:20px; width:200px; text-align:left;" \|'''1. State the known quantities'''
		+
		+	k = 0.8N/m
		+
		+	Original Length = 0.1m
		+
		+	Final Length = 9.1m
		+
		+	'''Find the [[Extension (Physics)\|extension]].'''
		+
		+	x = Final Length - Original Length = 9.1 - 0.1 = 9.0m
		+	\|-
		+	\| style="height:20px; width:200px; text-align:left;" \|'''2. [[Substitute (Maths)\|Substitute]] the numbers into the [[equation]] and solve.'''
		+
		+	<math>E_e = \frac{1}{2} k x^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 400 \times 0.5^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 400 \times 0.25</math>
		+
		+	<math>E_e = 50J</math>
		+	\| style="height:20px; width:200px; text-align:left;" \|'''2. [[Substitute (Maths)\|Substitute]] the numbers into the [[equation]] and solve.'''
		+
		+	<math>E_e = \frac{1}{2} k x^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 45 \times 30^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 45 \times 900</math>
		+
		+	<math>E_e = 20250J</math>
		+
		+	<math>E_e \approx 20,000J</math>
		+	\| style="height:20px; width:200px; text-align:left;" \|'''2. [[Substitute (Maths)\|Substitute]] the numbers into the [[equation]] and solve.'''
		+
		+	<math>E_e = \frac{1}{2} k x^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 0.80 \times 9.0^2</math>
		+
		+	<math>E_e = \frac{1}{2} \times 0.80 \times 81</math>
		+
		+	<math>E_e = 32.4</math>
		+
		+	<math>E_e \approx 32J</math>
		+	\|}