Difference between revisions of "Ohm"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
− | The [[Ohm]] is the scientific [[ | + | The [[Ohm]] is the scientific [[unit]] of [[resistance]]. |
===About Ohms=== | ===About Ohms=== | ||
− | : An [[Ohm]] is represented with the symbol | + | : An [[Ohm]] is represented with the symbol Ω. |
: An [[Ohm]] is one [[Volt]] per [[Amp]]. | : An [[Ohm]] is one [[Volt]] per [[Amp]]. | ||
+ | |||
+ | ===Converting to Ohms=== | ||
+ | {| class="wikitable" | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''Unit''' | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''To convert''' | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''Ohms''' | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[Megaohm]] (1MΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to [[Ohm]]s x1000,000. | ||
+ | | style="height:20px; width:200px; text-align:center;" |1000,000Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[kiloohm]] (1kΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to [[Ohm]]s x1000. | ||
+ | | style="height:20px; width:200px; text-align:center;" |1000Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[ohm]] (1Ω) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to [[Ohm]]s x1. | ||
+ | | style="height:20px; width:200px; text-align:center;" |1Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[milliohm]] 1(mΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to [[Ohm]]s /1000. | ||
+ | | style="height:20px; width:200px; text-align:center;" |0.001Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[microohm]] 1(µΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to [[Ohm]]s /1000,000. | ||
+ | | style="height:20px; width:200px; text-align:center;" |0.000001Ω | ||
+ | |} | ||
+ | |||
+ | ==Key Stage 4== | ||
+ | ===Meaning=== | ||
+ | '''Ohms''' ('''Ω''') are the [[SI Unit]] for [[Electrical Resistance|resistance]]. | ||
+ | |||
+ | ===About Ohms=== | ||
+ | : '''Ohms''' are shortened to the Greek letter Ω (omega). | ||
+ | : An [[Ohm]] is one [[Volt]] per [[Amp]]. | ||
+ | |||
+ | ===Converting to Ohms=== | ||
+ | {| class="wikitable" | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''Unit''' | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''To convert''' | ||
+ | | style="height:20px; width:200px; text-align:center;" |'''Ohms''' | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[megaohm]] (1MΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x10<sup>6</sup> | ||
+ | | style="height:20px; width:200px; text-align:center;" |1x10<sup>6</sup>Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[kiloohm]] (1kΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x10<sup>3</sup> | ||
+ | | style="height:20px; width:200px; text-align:center;" |1x10<sup>3</sup>Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[Ohm]] (1Ω) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x1 | ||
+ | | style="height:20px; width:200px; text-align:center;" |1Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[milliohm]] 1(mΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x10<sup>-3</sup> | ||
+ | | style="height:20px; width:200px; text-align:center;" |1x10<sup>-3</sup>Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[microohm]] 1(µΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x10<sup>-6</sup> | ||
+ | | style="height:20px; width:200px; text-align:center;" |1x10<sup>-6</sup>Ω | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |1 [[nanoohm]] 1(nΩ) | ||
+ | | style="height:20px; width:200px; text-align:center;" |Convert to '''Ohms''' x10<sup>-9</sup> | ||
+ | | style="height:20px; width:200px; text-align:center;" |1x10<sup>-9</sup>Ω | ||
+ | |} | ||
+ | |||
+ | ===References=== | ||
+ | ====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 ''Ohms, pages 54-55, 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 ''Ohms, pages 146-147, 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 ''Ohms, pages 386-387, 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 ''Ohms (Ω), pages 104, Gateway GCSE Physics, Oxford, OCR ''] |
Latest revision as of 07:52, 15 December 2019
Contents
Key Stage 3
Meaning
The Ohm is the scientific unit of resistance.
About Ohms
Converting to Ohms
Unit | To convert | Ohms |
1 Megaohm (1MΩ) | Convert to Ohms x1000,000. | 1000,000Ω |
1 kiloohm (1kΩ) | Convert to Ohms x1000. | 1000Ω |
1 ohm (1Ω) | Convert to Ohms x1. | 1Ω |
1 milliohm 1(mΩ) | Convert to Ohms /1000. | 0.001Ω |
1 microohm 1(µΩ) | Convert to Ohms /1000,000. | 0.000001Ω |
Key Stage 4
Meaning
Ohms (Ω) are the SI Unit for resistance.
About Ohms
Converting to Ohms
Unit | To convert | Ohms |
1 megaohm (1MΩ) | Convert to Ohms x106 | 1x106Ω |
1 kiloohm (1kΩ) | Convert to Ohms x103 | 1x103Ω |
1 Ohm (1Ω) | Convert to Ohms x1 | 1Ω |
1 milliohm 1(mΩ) | Convert to Ohms x10-3 | 1x10-3Ω |
1 microohm 1(µΩ) | Convert to Ohms x10-6 | 1x10-6Ω |
1 nanoohm 1(nΩ) | Convert to Ohms x10-9 | 1x10-9Ω |
References
AQA
Edexcel
- Ohms, pages 146-147, GCSE Physics, Pearson Edexcel
- Ohms, pages 386-387, GCSE Combined Science, Pearson Edexcel