Momentum - Revision history

Ellen References at 06:29, 15 December 2019

2019-12-15T06:29:16Z

Ellen References at 18:56, 22 November 2019

2019-11-22T18:56:36Z

Ellen References at 17:49, 8 November 2019

2019-11-08T17:49:22Z

NRJC at 18:50, 8 April 2019

2019-04-08T18:50:00Z

NRJC: /* Example Calculations */

2019-02-15T09:16:58Z

‎Example Calculations

NRJC: /* Finding Velocity from Mass and Momentum */

2019-02-15T08:45:29Z

‎Finding Velocity from Mass and Momentum

NRJC: Created page with "==Key Stage 4 Higher== ===Meaning=== '''Momentum''' is a vector quantity and the product of mass and velocity of an object. ===About Momen..."

2019-02-15T08:43:01Z

Created page with "==Key Stage 4 Higher== ===Meaning=== '''Momentum''' is a vector quantity and the product of mass and velocity of an object. ===About Momen..."

New page

==Key Stage 4 Higher==
===Meaning===
'''Momentum''' is a [[vector]] quantity and the [[Product (Maths)|product]] of [[mass]] and [[velocity]] of an [[object]].

===About Momentum===
: [[Momentum]] is a [[vector]] so it has [[magnitude]] and direction.
: The [[SI Unit]]s of [[momentum]] are [[Kilogram Metres per Second|kilogram metres per second]] (kgm/s).
: [[Momentum]] is conserved which means the total [[momentum]] before an interaction is the same as the total [[momentum]] after the interaction, see [[Conservation of Momentum]].
: [[Force]]s cause a change in [[momentum]]. The quicker the change in [[momentum]] the greater the [[force]] applied to an [[object]].

===Equation===

Momentum = Mass x Velocity

<math>p = mv</math>

Where

<math>p</math> = [[Momentum]] of the [[object]].

<math>m</math> = [[Inertial Mass]] of the [[object]].

<math>v</math> = [[Velocity]] of the [[object]].

===Example Calculations===
====Finding Momentum from Mass and Velocity====
{| class="wikitable"
| style="height:20px; width:300px; text-align:center;" |A 21g bullet travels at a [[velocity]] of 600m/s. Calculate the [[momentum]] of the bullet correct to two [[Significant Figures|significant figures]].
| style="height:20px; width:300px; text-align:center;" |A 7.6 tonne lorry travels at a [[velocity]] of 30m/s. Calculate the [[momentum]] of the bullet correct to two [[Significant Figures|significant figures]].
|-
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''

m = 21g = 0.021kg

v = 610m/s
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''

m = 7.6 tonnes = 7600kg

v = 32m/s
|-
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''

<math>p = mv</math>

<math>p = 0.021 \times 610</math>

<math>p = 12.81kgm/s</math>

<math>p \approx 13kgm/s</math>
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''

<math>p = mv</math>

<math>p = 7600 \times 32</math>

<math>p = 243200kgm/s</math>

<math>p \approx 240000kgm/s</math>
|}

====Finding Velocity from Mass and Momentum====
{| class="wikitable"
| style="height:20px; width:300px; text-align:center;" |Question
| style="height:20px; width:300px; text-align:center;" |Question
|-
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
|-
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
|-
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
|}

====Finding Mass from Velocity and Momentum====
{| class="wikitable"
| style="height:20px; width:300px; text-align:center;" |Question
| style="height:20px; width:300px; text-align:center;" |Question
|-
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
|-
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
|-
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
|}

← Older revision		Revision as of 06:29, 15 December 2019
Line 166:		Line 166:
	:[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 ''Momentum; conservation of, page 25, 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 ''Momentum; conservation of, page 25, 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 ''Momentum; conservation of, page 309, 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 ''Momentum; conservation of, page 309, GCSE Combined Science, Pearson Edexcel '']
		+
		+	====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 ''Momentum, pages 31, 32, 89, Gateway GCSE Physics; The Revision Guide, CGP, 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 ''Momentum, pages 72-73, Gateway GCSE Physics, Oxford, OCR '']

← Older revision		Revision as of 18:56, 22 November 2019
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	:[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 ''Momentum, pages 244-5, GCSE Combined Science Trilogy 2, 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 ''Momentum, pages 244-5, GCSE Combined Science Trilogy 2, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac318 ''Momentum, pages 70, 71, GCSE Physics; The Revision Guide, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac318 ''Momentum, pages 70, 71, GCSE Physics; The Revision Guide, CGP, AQA '']
		+
		+	====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 ''Momentum, pages 153, 154, 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 ''Momentum, pages 20, 21, 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 ''Momentum, pages 287, 308-309, 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 ''Momentum, pages 3, 24-25, 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 ''Momentum, pages 44-47, 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 ''Momentum; conservation of, page 25, 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 ''Momentum; conservation of, page 309, GCSE Combined Science, Pearson Edexcel '']

← Older revision		Revision as of 17:49, 8 November 2019
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	<math>m \approx 750kg</math>		<math>m \approx 750kg</math>
	\|}		\|}
		+
		+	===References===
		+	====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 ''Momentum, pages 141, 164-5, 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 ''Momentum, pages 150-155, 157, GCSE Physics; Third Edition, Oxford University Press, 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 ''Momentum, pages 166-7, GCSE Physics, 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 ''Momentum, pages 183, 184, 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 ''Momentum, pages 216-220, 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 ''Momentum, pages 244-5, GCSE Combined Science Trilogy 2, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac318 ''Momentum, pages 70, 71, GCSE Physics; The Revision Guide, CGP, AQA '']

@@ Line 1: / Line 1: @@
 ==Key Stage 4 Higher==
 ===Meaning===
-'''Momentum''' is a [[vector]] quantity and the [[Product (Maths)|product]] of [[mass]] and [[velocity]] of an [[object]].
+'''Momentum''' is a [[vector]] quantity and the product of [[mass]] and [[velocity]] of an [[object]].
 ===About Momentum===

@@ Line 62: / Line 62: @@
 ====Finding Velocity from Mass and Momentum====
 {| class="wikitable"
-| style="height:20px; width:300px; text-align:center;" |A 700kg car has a [[momentum]] of 2.4x10<sup>4</sup>. Calculate the [[velocity]] of the car
+| style="height:20px; width:300px; text-align:center;" |A 700kg car has a [[momentum]] of 2.4x10<sup>4</sup>kgm/s. Calculate the [[velocity]] of the car correct to two [[Significant Figures|significant figures]].
-| style="height:20px; width:300px; text-align:center;" |Question
+| style="height:20px; width:300px; text-align:center;" |An [[asteroid]] with a [[mass]] of 77Mg has a [[momentum]] of 3.2x10<sup>9</sup>kgm/s. Calculate the [[velocity]] of the [[asteroid]] correct to two [[Significant Figures|significant figures]].
 |-
 | style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 | style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 |-
 | style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
 | style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
 |-
 | style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
 | style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
 |}
 ====Finding Mass from Velocity and Momentum====
 {| class="wikitable"
-| style="height:20px; width:300px; text-align:center;" |Question
+| style="height:20px; width:300px; text-align:center;" |A skydiver has a [[velocity]] of 53m/s and a [[momentum]] of 4400kgm/s. Calculate the [[mass]] of the skydiver correct to two [[Significant Figures|significant figures]].
-| style="height:20px; width:300px; text-align:center;" |Question
+| style="height:20px; width:300px; text-align:center;" |A plane travelling with a [[velocity]] of 122m/s has a [[momentum]] of 9.2x10<sup>4</sup>kgm/s. Calculate the [[mass]] of the [plane]] correct to two [[Significant Figures|significant figures]].
 |-
 | style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 | style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities'''
 |-
 | style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
 | style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
 |-
 | style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
 | style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
 |}