Ultra-violet - Revision history

Ellen References at 18:37, 20 December 2019

2019-12-20T18:37:14Z

Ellen References at 18:36, 20 December 2019

2019-12-20T18:36:37Z

Ellen References at 16:02, 29 November 2019

2019-11-29T16:02:28Z

Ellen References at 15:20, 14 November 2019

2019-11-14T15:20:39Z

NRJC at 13:59, 5 April 2019

2019-04-05T13:59:33Z

NRJC: /* Dangers */

2019-02-25T08:10:06Z

‎Dangers

NRJC at 17:32, 21 February 2019

2019-02-21T17:32:23Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== '''Ultra-violet''' are the third highest frequency and third shortest wavelength electromagnetic waves. ===Abou..."

2019-02-21T09:15:16Z

Created page with "==Key Stage 4== ===Meaning=== '''Ultra-violet''' are the third highest frequency and third shortest wavelength electromagnetic waves. ===Abou..."

New page

==Key Stage 4==
===Meaning===
'''Ultra-violet''' are the third highest [[frequency]] and third shortest [[wavelength]] [[Electromagnetic Wave|electromagnetic waves]].

===About Ultra-violet===
: [[Ultra-violet]] is a [[Transverse Wave|transverse waves]].
: [[Ultra-violet]] can travel through a [[vacuum]] as well as through [[gas]]es in the [[Earth's Atmosphere|Earth's atmosphere]].
: The [[speed]] of [[ultra-violet]] through a [[vacuum]] is 300,000,000[[m/s]].
As a [[wave]] [[ultra-violet]]s can be:
*[[Transmit|Transmitted]] - [[ultra-violet]]s can pass through a [[medium]].
*[[Absorb (physics)|Absorbed]] - The [[energy]] [[Energy Transfer|transferred]] by [[ultra-violet]] can be taken in by certain [[material]]s, particularly dark coloured [[material]]s.
*[[Reflection|Reflected]] - [[Ultra-violet]] can bounce off an [[interface]] between two [[medium|media]], particularly the surface of a shiny [[metal]].
*[[Refraction|Refracted]] - [[Ultra-violet]] can change direction when they cross the [[interface]] between two [[medium|media]].

====Unique Properties====
: [[Ultra-violet]] can cause [[electron]]s in some [[material]]s to gain enough [[energy]] to leave [[atom]]s creating [[ion]]s which can destroy [[Chemical Bond|chemical bonds]].
: [[Ultra-violet]] does not penetrate through the [[skin]].
: [[Ultra-violet]] is [[scatter]]ed by the [[Earth's Atmosphere|Earth's atmosphere]].
====Applications====
: [[Ultra-violet]] can cause [[electron]]s in the [[atom]]s of [[fluorescent]] [[molecule]]s to gain [[energy]]. When the [[electron]]s lose this [[energy]] they [[emit]] [[Visible Light|visible light]]. This can be used to reveal [[fluorescent]] ink to detect forged bank notes
: [[Ultra-violet]] causes damage to the skin by breaking [[Chemical Bond|chemical bonds]] so in an effort to protect itself the skin produces [[melanin]], a brown pigment. This causes the skin to become tanned. This is used in tanning beds.
: [[Ultra-violet]] can destroy [[micro-organism]]s in [[water]] by breaking [[Chemical Bond|chemical bonds]] in those [[micro-organism]]s, so can be used to sterilise water.

====Dangers====
: [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)|cells]] leading to a [[mutation]].

← Older revision		Revision as of 18:37, 20 December 2019
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	:[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 ''Ultra-violet (UV) radiation, pages 192, 194, Gateway GCSE Combined Science; The Revision Guide, CGP, 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 ''Ultra-violet (UV) radiation, pages 192, 194, 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 ''Ultra-violet (UV) radiation, pages 66, 68, 100, Gateway GCSE Physics; 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 ''Ultra-violet (UV) radiation, pages 66, 68, 100, 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 ''Ultraviolet waves, pages 152-153, 155, Gateway GCSE Physics, Oxford, OCR '']

← Older revision		Revision as of 18:36, 20 December 2019
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	:[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 ''Ultraviolet, pages 168, 171, GCSE Combined Science; The Revision Guide, 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 ''Ultraviolet, pages 168, 171, 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 ''Ultraviolet, pages 43, 47, GCSE Physics; 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 ''Ultraviolet, pages 43, 47, GCSE Physics; The Revision Guide, CGP, 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 ''Ultra-violet (UV) radiation, pages 192, 194, 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 ''Ultra-violet (UV) radiation, pages 66, 68, 100, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 16:02, 29 November 2019
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	:[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 ''Ultraviolet waves, pages 194, 199, GCSE Physics, Hodder, 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 ''Ultraviolet waves, pages 194, 199, GCSE Physics, Hodder, 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 ''Ultraviolet; uses and applications, pages 200-1, GCSE Physics, Hodder, 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 ''Ultraviolet; uses and applications, pages 200-1, GCSE Physics, Hodder, 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 ''Ultraviolet (UV) radiation, pages 74, 84, 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 ''Ultraviolet radiation, page 127, 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 ''Ultraviolet radiation; dangers, page 136, 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 ''Ultraviolet radiation; uses, page 134, 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 ''Ultraviolet, pages 168, 171, 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 ''Ultraviolet, pages 43, 47, GCSE Physics; The Revision Guide, CGP, Edexcel '']

← Older revision		Revision as of 15:20, 14 November 2019
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	: [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)\|cells]] leading to a [[mutation]].		: [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)\|cells]] leading to a [[mutation]].
	: [[Ultra-violet]] can cause [[cataracts]] as it damages the [[transparent]] protective layer on the [[eye]]s called the [[cornea]].		: [[Ultra-violet]] can cause [[cataracts]] as it damages the [[transparent]] protective layer on the [[eye]]s called the [[cornea]].
		+
		+	===References===
		+	====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 ''Ultraviolet (UV), pages 200, 207, 211, GCSE Combined Science Trilogy; Physics, 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=ad276ad49df77ab4b40ab4fd0fe10384 ''Ultraviolet (UV), pages 223, 225, 228, GCSE Combined Science; The Revision Guide, 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 ''Ultraviolet (UV), pages 242, 249, 251, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac470 ''Ultraviolet (UV), pages 80, 81, GCSE Physics; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Ultraviolet light, page 121, GCSE Biology; Third Edition, Oxford University Press, 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 ''Ultraviolet radiation, pages 191, 197, 213, 218-19, 282, GCSE Physics; Student Book, Collins, 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 ''Ultraviolet radiation, pages 261, 266, 267-8, GCSE Combined Science Trilogy 2, Hodder, 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 ''Ultraviolet waves, page 196, 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 ''Ultraviolet waves, pages 194, 199, GCSE Physics, Hodder, 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 ''Ultraviolet; uses and applications, pages 200-1, GCSE Physics, Hodder, AQA '']

← Older revision		Revision as of 08:10, 25 February 2019
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	====Dangers====		====Dangers====
	: [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)\|cells]] leading to a [[mutation]].		: [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)\|cells]] leading to a [[mutation]].
		+	: [[Ultra-violet]] can cause [[cataract]]s as it damages the [[transparent]] protective layer on the [[eye]]s called the [[cornea]].

@@ Line 19: / Line 19: @@
 ====Applications====
 : [[Ultra-violet]] can cause [[electron]]s in the [[atom]]s of [[fluorescent]] [[molecule]]s to gain [[energy]]. When the [[electron]]s lose this [[energy]] they [[emit]] [[Visible Light|visible light]]. This can be used to reveal [[fluorescent]] ink to detect forged bank notes
-: [[Ultra-violet]] causes damage to the skin by breaking [[Chemical Bond|chemical bonds]] so in an effort to protect itself the skin produces [[melanin]], a brown pigment. This causes the skin to become tanned. This is used in tanning beds.
+: [[Ultra-violet]] causes damage to the skin by breaking [[Chemical Bond|chemical bonds]] so in an effort to protect itself the skin produces melanin, a brown pigment. This causes the skin to become tanned. This is used in tanning beds.
 : [[Ultra-violet]] can destroy [[micro-organism]]s in [[water]] by breaking [[Chemical Bond|chemical bonds]] in those [[micro-organism]]s, so can be used to sterilise water.
 ====Dangers====
 : [[Ultra-violet]] can cause sunburn and skin cancer by ionising and damaging [[DNA]] [[molecule]]s in the skin [[Cell (Biology)|cells]] leading to a [[mutation]].
-: [[Ultra-violet]] can cause [[cataract]]s as it damages the [[transparent]] protective layer on the [[eye]]s called the [[cornea]].
+: [[Ultra-violet]] can cause [[cataracts]] as it damages the [[transparent]] protective layer on the [[eye]]s called the [[cornea]].

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
-'''Ultra-violet''' are the third highest [[frequency]] and third shortest [[wavelength]] [[Electromagnetic Wave|electromagnetic waves]].
+'''Ultra-violet''' is the third highest [[frequency]] and third shortest [[wavelength]] [[Electromagnetic Wave|electromagnetic waves]].
 ===About Ultra-violet===