Friction - Revision history

Ellen References at 09:20, 11 December 2019

2019-12-11T09:20:09Z

Ellen References at 11:25, 20 November 2019

2019-11-20T11:25:10Z

Ellen References at 10:30, 5 November 2019

2019-11-05T10:30:10Z

NRJC at 13:42, 3 April 2019

2019-04-03T13:42:45Z

NRJC at 10:27, 11 February 2019

2019-02-11T10:27:41Z

NRJC: /* About Friction */

2019-02-11T10:19:39Z

‎About Friction

NRJC: /* About Friction */

2019-02-08T09:52:26Z

‎About Friction

NRJC: /* Key Stage 3 */

2019-02-08T09:42:49Z

‎Key Stage 3

NRJC at 12:26, 15 October 2018

2018-10-15T12:26:17Z

NRJC at 17:16, 14 October 2018

2018-10-14T17:16:42Z

← Older revision		Revision as of 09:20, 11 December 2019
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	:[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 ''Friction, page 132, 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 ''Friction, page 132, GCSE Physics, 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 ''Friction, page 374, 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 ''Friction, page 374, GCSE Combined Science, Pearson Edexcel '']
		+
		+	====OCR====
		+	:[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 ''Friction, 63, 66-67, 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 ''Friction, pages 163, 205, 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 ''Friction, pages 26, 29, 85, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 11:25, 20 November 2019
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	:[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 ''Friction, pages 26-7, 156, 148, 167, 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 ''Friction, pages 26-7, 156, 148, 167, GCSE Physics; Student Book, Collins, 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 ''Friction, pages 9, 14-15, 50, 117-118, 146-147, 149, GCSE Physics; Third Edition, Oxford University Press, 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 ''Friction, pages 9, 14-15, 50, 117-118, 146-147, 149, GCSE Physics; Third Edition, Oxford University Press, AQA '']
		+
		+	====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 ''Friction, page 132, GCSE Physics, 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 ''Friction, page 374, GCSE Combined Science, Pearson Edexcel '']

← Older revision		Revision as of 10:30, 5 November 2019
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	\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].		\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].
	\|}		\|}
		+
		+	===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 ''Friction, page 19, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac205 ''Friction, pages 16, 53, 63, 67, 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 ''Friction, pages 209, 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 ''Friction, pages 26-7, 156, 148, 167, GCSE Physics; Student Book, Collins, 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 ''Friction, pages 9, 14-15, 50, 117-118, 146-147, 149, GCSE Physics; Third Edition, Oxford University Press, AQA '']

@@ Line 1: / Line 1: @@
 ==Key Stage 2==
 ===Meaning===
-'''Friction''' is a [[force]] that slows things down when two [[Surface|surfaces]] are touching each other.
+'''Friction''' is a [[force]] that slows things down when two surfaces are touching each other.
 : Singular [[Noun]]: '''Friction'''
 : Plural [[Noun]]: '''Friction'''

← Older revision		Revision as of 10:27, 11 February 2019
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	\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].		\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].

		+	\|}
		+
		+	==Key Stage 3==
		+	===Meaning===
		+	'''Friction''' is a [[force]] that acts prevent two surfaces from sliding over one another.
		+
		+	===About Friction===
		+	: [[Friction]] is a [[force]] so it is [[Measure\|measured]] in [[Newton]]s.
		+	: [[Friction]] is a [[Contact Force\|contact force]] because it only exists when two surfaces are touching.
		+	: [[Friction]] occurs because two [[Roughness\|rough]] surfaces have bumps that fit together resisting them from sliding against each other.
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:SurfacesFriction.png\|center\|400px]]
		+	\|-
		+	\| style="height:20px; width:200px; text-align:center;" \|The two [[diagram]] shows two [[roughness\|rough]] surfaces and two [[roughness\|smooth]] surfaces. The [[friction]] between the [[roughness\|rough]] surfaces is greater because there are more bumps in the way to prevent the surfaces sliding against each other.
		+	\|}
		+	: [[Friction]] can act to [[decelerate]] an [[object]] sliding along a surface. However, it also allows [[object]]s with a [[Driving Force\|driving force]] to [[accelerate]] by preventing a wheel from sliding against the surface.
		+	: The [[friction]] between two surfaces can be reduced with a [[lubricant]] which keeps the rough parts of two surfaces separated.
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:LubricantFriction.png\|center\|400px]]
		+	\|-
		+	\| style="height:20px; width:200px; text-align:center;" \|The two [[diagram]] shows how [[roughness\|rough]] surfaces can be separated by a [[lubricant]] reducing the [[friction]] between them.
		+	\|}
		+
		+	===Energy Transfer===
		+	: When two surfaces slide over one another [[Work Done\|work]] is done by [[friction]] to [[Mechanical Energy Transfer\|transfer]] [[energy]] from the [[Kinetic Energy Store\|kinetic energy store]] to the [[Thermal Energy Store\|thermal energy store]] of the [[system]].
		+
		+	===Examples===
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:FrictionBowlingBall.png\|center\|200px]]
		+	\|[[File:FrictionCar.png\|center\|300px]]
		+	\|-
		+	\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point where the bowling ball touches the ground. The [[force]] of [[friction]] acts to [[decelerate]] the bowling ball as it moves.
		+	\| style="height:20px; width:300px; text-align:center;" \|'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].
	\|}		\|}

@@ Line 33: / Line 33: @@
 : [[Friction]] is a [[force]] so it is [[Measure|measured]] in [[Newton]]s.
 : [[Friction]] is a [[Contact Force|contact force]] because it only exists when two surfaces are touching.
-: [[Friction]] occurs because two [[Roughness|rough]] surfaces have bumps that fit together resisting the motion of an [[object]].
+: [[Friction]] occurs because two [[Roughness|rough]] surfaces have bumps that fit together resisting them from sliding against each other.
 {| class="wikitable"
 |-

← Older revision		Revision as of 12:26, 15 October 2018
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	===About Friction===		===About Friction===
		+	: [[Friction]] is a [[force]] so it is [[Measure\|measured]] in [[Newton]]s.
	: [[Friction]] is a [[Contact Force\|contact force]] because it only exists when two surfaces are touching.		: [[Friction]] is a [[Contact Force\|contact force]] because it only exists when two surfaces are touching.

@@ Line 40: / Line 40: @@
 |-
 | style="height:20px; width:300px; text-align:center;" |'''Friction''' acts at the point where the bowling ball touches the ground. The [[force]] of [[friction]] acts to [[decelerate]] the bowling ball as it moves.
-| style="height:20px; width:300px; text-align:center;" |'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not accelerate.
+| style="height:20px; width:300px; text-align:center;" |'''Friction''' acts at the point that the tyres touch the ground. The [[force]] of [[friction]] can act to [[decelerate]] the car but can also be use to [[accelerate]] the [[car]]. If there was no [[friction]] the wheels would spin but the [[car]] would not [[accelerate]].
 |}