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Difference between revisions of "Colour"
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==Key Stage 1==
 
==Key Stage 1==
−
[[File:VisibleSpectrum|right|200px|thumb|All the colours in the rainbow.]]
+
[[File:VisibleSpectrum.png|right|300px|thumb|All the '''colours''' in the rainbow.]]
 
===Meaning===
 
===Meaning===
−
'''Colour is something we [[Sight|see]] with our [[Eye|eyes]].
+
'''Colour''' is something we [[Sight|see]] with our [[Eye|eyes]].
  
−
: '''[[Noun]]''': Colour
+
: Singular [[Noun]]: '''Colour'''
−
: '''[[Verb]]''': Colour
+
: Plural [[Noun]]: '''Colours'''
 +
: [[Verb]]: '''Colour'''
  
 
===About Colours===
 
===About Colours===
−
The '''colours''' we can see are red, orange, yellow, green, blue, indigo and violet. If you mix '''colours''' of [[paint]] together you can get another '''colour'''. Red and yellow paint mixed together makes orange. Blue and yellow paint mixed together make green. Blue and red paint mixed together makes purple. If you mix all three you can make brown.
+
The '''colours''' we can see are red, orange, yellow, green, blue, indigo and violet. If you mix '''colours''' of paint together you can get another '''colour'''. Red and yellow paint mixed together makes orange. Blue and yellow paint mixed together make green. Blue and red paint mixed together makes purple. If you mix all three you can make brown.
  
 
===Examples===
 
===Examples===
−
: Grass is green.
+
{| class="wikitable"
−
: Blood is red.
+
|-
−
: The sky is blue.
+
|[[File:Grass.png|center|200px]]
−
: I am going to paint the sun yellow.
+
|[[File:RosePicture.png|center|200px]]
 +
|-
 +
|Grass is a green '''colour'''.
 +
|The '''colour''' of this rose is red.
 +
|-
 +
|[[File:Sky.png|center|200px]]
 +
|[[File:SunPainting.png|center|200px]]
 +
|-
 +
|The sky is blue in '''colour'''.
 +
|I will '''colour''' in [[The Sun]] yellow with paint.
 +
|}
  
−
===Used in a sentence===
+
==Key Stage 3==
−
: [[Flower|Flowers]] can have many different '''colours'''.
+
===Meaning===
−
: The '''colour''' of [[blood]] is red.
+
[[Colour]] is a [[property]] of [[object]]s that we can [[Sight|see]].
−
: The [[sky]] is blue in '''colour'''.
+
 
−
: I will '''colour''' in the [[sun]] yellow with [[paint]].
+
===About Colour===
 +
White [[light]] can be divided into 7 [[colour]]s:
 +
*Red
 +
*Orange
 +
*Yellow
 +
*Green
 +
*Blue
 +
*Indigo
 +
*Violet
 +
 
 +
: Red [[light]] has the lowest [[frequency]] and the longest [[wavelength]].
 +
: Violet [[light]] has the highest [[frequency]] and the shortest [[wavelength]].
 +
 
 +
===Colour and Objects===
 +
{| class="wikitable"
 +
|-
 +
|[[File:RedObjectColour.png|center|300px]]
 +
|[[File:BlueObjectColour.png|center|300px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |A red [[object]] [[reflection|reflects]] red [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
| style="height:20px; width:200px; text-align:center;" |A blue [[object]] [[reflection|reflects]] blue [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
|}
 +
 
 +
===Eyes and Colour===
 +
: The [[human]] [[eyes]] only have three different '''colour''' sensing [[Cell (Biology)|cells]] called [[Cone (Biology)|cones]]. They can detect; red, green or blue light. All other '''colours''' we see are caused by a pair of different [[Cone (Biology)|cones]] detecting [[light]] at the same time.
 +
: If the red [[Cone (Biology)|cones]] and blue [[Cone (Biology)|cones]] both detect [[light]] then we see [[magenta]].
 +
: If the red [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[yellow]].
 +
: If the blue [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[cyan]].
 +
 
 +
===Coloured Mixing===
 +
{| class="wikitable"
 +
|-
 +
|[[File:ColourMixing.png|center|500px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |
 +
: Magenta can be made by mixing red and blue [[light]].
 +
: Yellow can be made by mixing red and green [[light]].
 +
: Cyan can be made by mixing blue and green [[light]].
 +
: White can be made by mixing red, blue and green [[light]].
 +
|}
 +
 
 +
====Primary Colours====
 +
{| class="wikitable"
 +
|+ Primary Coloured Objects
 +
|-
 +
|[[File:RedLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears red under red [[light]].
 +
: A blue [[object]] appears black under red [[light]].
 +
: A green [[object]] appears black under red [[light]].
 +
|-
 +
|[[File:BlueLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears black under blue [[light]].
 +
: A blue [[object]] appears blue under blue [[light]].
 +
: A green [[object]] appears black under blue [[light]].
 +
|-
 +
|[[File:GreenLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears black under green [[light]].
 +
: A blue [[object]] appears black under green [[light]].
 +
: A green [[object]] appears green under green [[light]].
 +
|}
 +
 
 +
====Secondary Colours====
 +
{| class="wikitable"
 +
|+ Secondary Coloured Objects
 +
|-
 +
|[[File:RedLightMCY.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A yellow [[object]] appears red under red [[light]].
 +
: A cyan [[object]] appears black under red [[light]].
 +
: A magenta [[object]] appears red under red [[light]].
 +
|-
 +
|[[File:BlueLightMCY.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A yellow [[object]] appears black under blue [[light]].
 +
: A cyan [[object]] appears blue under blue [[light]].
 +
: A magenta [[object]] appears blue under blue [[light]].
 +
|-
 +
|[[File:GreenLightMCY.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A yellow [[object]] appears green under green [[light]].
 +
: A cyan [[object]] appears green under green [[light]].
 +
: A magenta [[object]] appears black under green [[light]].
 +
|}
 +
 
 +
{| class="wikitable"
 +
|+ Secondary Coloured Lights
 +
|-
 +
|[[File:YellowLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears red under yellow [[light]].
 +
: A blue [[object]] appears black under yellow [[light]].
 +
: A green [[object]] appears green under yellow [[light]].
 +
|-
 +
|[[File:CyanLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears black under cyan [[light]].
 +
: A blue [[object]] appears blue under cyan [[light]].
 +
: A green [[object]] appears green under cyan [[light]].
 +
|-
 +
|[[File:MagentaLight.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
: A red [[object]] appears red under magenta [[light]].
 +
: A blue [[object]] appears blue under magenta [[light]].
 +
: A green [[object]] appears black under magenta [[light]].
 +
|}
 +
 
 +
===Colour Filters===
 +
{| class="wikitable"
 +
|+ Primary Coloured Filters
 +
|[[File:RedFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a red filter:
 +
: A red [[object]] appears red.
 +
: A blue [[object]] appears black.
 +
: A green [[object]] appears black.
 +
: A yellow [[object]] appears red.
 +
: A cyan [[object]] appears black.
 +
: A magenta [[object]] appears red.
 +
|-
 +
|[[File:BlueFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a blue filter:
 +
: A red [[object]] appears black.
 +
: A blue [[object]] appears blue.
 +
: A green [[object]] appears black.
 +
: A yellow [[object]] appears black.
 +
: A cyan [[object]] appears blue.
 +
: A magenta [[object]] appears blue.
 +
|-
 +
|[[File:GreenFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a green filter:
 +
: A red [[object]] appears black.
 +
: A blue [[object]] appears black.
 +
: A green [[object]] appears green.
 +
: A yellow [[object]] appears green.
 +
: A cyan [[object]] appears green.
 +
: A magenta [[object]] appears black.
 +
|}
 +
 
 +
{| class="wikitable"
 +
|+ Primary Coloured Filters
 +
|[[File:YellowFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a yellow filter:
 +
: A red [[object]] appears red.
 +
: A blue [[object]] appears black.
 +
: A green [[object]] appears green.
 +
: A yellow [[object]] appears yellow.
 +
: A cyan [[object]] appears green.
 +
: A magenta [[object]] appears red.
 +
|-
 +
|[[File:CyanFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a cyan filter:
 +
: A red [[object]] appears black.
 +
: A blue [[object]] appears blue.
 +
: A green [[object]] appears green.
 +
: A yellow [[object]] appears green.
 +
: A cyan [[object]] appears cyan.
 +
: A magenta [[object]] appears blue.
 +
|-
 +
|[[File:MagentaFilter.gif|center]]
 +
|-
 +
| style="height:20px; width:200px; text-align:left;" |
 +
Through a magenta filter:
 +
: A red [[object]] appears red.
 +
: A blue [[object]] appears blue.
 +
: A green [[object]] appears black.
 +
: A yellow [[object]] appears red.
 +
: A cyan [[object]] appears blue.
 +
: A magenta [[object]] appears magenta.
 +
|}
 +
 
 +
==Key Stage 4==
 +
===Meaning===
 +
[[Colour]] is a [[property]] of [[object]]s that we can [[Sight|see]].
 +
 
 +
===About Colour===
 +
White [[light]] can be divided into 7 [[colour]]s:
 +
*Red
 +
*Orange
 +
*Yellow
 +
*Green
 +
*Blue
 +
*Indigo
 +
*Violet
 +
 
 +
: Red [[light]] has the lowest [[frequency]] and the longest [[wavelength]].
 +
: Violet [[light]] has the highest [[frequency]] and the shortest [[wavelength]].
 +
: An [[object]] may appear to have a [[colour]] for three reasons:
 +
:*[[Reflection]] - An [[object]] may [[reflect]] some [[frequency|frequencies]] while [[Absorb (Physics)|absorbing others]].
 +
:*Filtering - An [[object]] may be viewed through a [[transparent]] [[medium]] which [[Absorb (Physics)|absorbs]] certain [[frequency|frequencies]] of [[light]].
 +
:*[[Scattering]] - An [[object]] may be viewed through a [[transparent]] [[medium]] which [[Scattering|scatters]] certain [[frequency|frequencies]] of [[light]]. This is why the sky appears blue and the [[Sun]] appears yellow.
 +
 
 +
===Eyes and Colour===
 +
: The [[human]] [[eyes]] only have three different '''colour''' sensing [[Cell (Biology)|cells]] called [[Cone (Biology)|cones]]. They can detect; red, green or blue light. All other '''colours''' we see are caused by a pair of different [[Cone (Biology)|cones]] detecting [[light]] at the same time.
 +
: If the red [[Cone (Biology)|cones]] and blue [[Cone (Biology)|cones]] both detect [[light]] then we see [[magenta]].
 +
: If the red [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[yellow]].
 +
: If the blue [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[cyan]].
 +
 
 +
===Coloured Mixing===
 +
====Additive Colours====
 +
: The additive primary [[colour]]s are Red, Blue and Green. This means when two [[colour]]s of [[light]] are added, they make new [[colour]]s.
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:ColourMixing.png|center|500px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |
 +
: Magenta can be made by mixing red and blue [[light]].
 +
: Yellow can be made by mixing red and green [[light]].
 +
: Cyan can be made by mixing blue and green [[light]].
 +
: White can be made by mixing red, blue and green [[light]].
 +
|}
 +
 
 +
===Colour and Reflection===
 +
 
 +
====Subtractive Primary Colours====
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:SubtractiveColourMixing.png|center|500px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |
 +
: Magenta paint [[reflect]]s red and blue [[light]] but [[Absorb (Physics)|absorbs]] green [[light]].
 +
: Cyan paint [[reflect]]s blue and green [[light]] but [[Absorb (Physics)|absorbs]] red [[light]].
 +
: Yellow paint [[reflect]]s red and green [[light]] but [[Absorb (Physics)|absorbs]] blue [[light]].
 +
|}
 +
 
 +
: Mixing Magenta and Cyan paints makes a new paint which [[Absorb (Physics)|absorbs]] green [[light]] and red [[light]]. The new paint appears blue because that is the only [[colour]] it [[reflect]]s.
 +
: Mixing Cyan and Yellow paints makes a new paint which [[Absorb (Physics)|absorbs]] red [[light]] and blue [[light]]. The new paint appears green because that is the only [[colour]] it [[reflect]]s.
 +
: Mixing Magenta and Yellow paints makes a new paint which [[Absorb (Physics)|absorbs]] green [[light]] and blue [[light]]. The new paint appears red because that is the only [[colour]] it [[reflect]]s.
 +
 
 +
Adding a little extra of one [[colour]] over another can go on to give different [[colour]]s.
 +
 
 +
: Magenta > Cyan gives purple.
 +
: Cyan > Magenta gives pale blue.
 +
: Cyan > Yellow gives turquoise.
 +
: Yellow > Cyan gives lime green.
 +
: Magenta > Yellow gives pink.
 +
: Yellow > Magenta gives orange.
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:RedObjectColour.png|center|300px]]
 +
|[[File:BlueObjectColour.png|center|300px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |A red [[object]] [[reflection|reflects]] red [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
| style="height:20px; width:200px; text-align:center;" |A blue [[object]] [[reflection|reflects]] blue [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
|}
 +
: [[Colour]] exists because [[object]]s [[Absorb (Physics)|absorb]] some [[frequency|frequencies]] of [[light]] but [[reflection|reflect]]s other [[frequency|frequencies]].
 +
: A [[colour]]ed [[object]] [[Absorb (Physics)|absorbs]] some [[colour]]s and [[reflect]]s others appearing the [[colour]] of the [[reflection|reflected]] [[light]]. For example [[leaf|leaves]] are green because the [[chlorophyll]] inside them [[Absorb (Physics)|absorbs]] red and blue [[light]] but not [[green]].
 +
: When [[colour]]ed [[object]]s are [[mixture|mixed]] such as paint they [[Absorb (Physics)|absorb]] certain [[colour]]s. The more different [[colour]] paints added, the more [[colour]]s they [[Absorb (Physics)|absorb]].
 +
: In art the focus is on these subtractive primary colours; Magenta, Cyan and Yellow. When [[object]]s with these [[colour]]s are [[mixture|mixed]] the [[object]] will preferentially [[Absorb (Physics)|absorb]] certain [[frequency|frequencies]] of [[light]] allowing only certain [[colour]]s to be [[reflect]]ed.
 +
 
 +
====Coloured Objects Under Light Coloured Light====
 +
{| class="wikitable"
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |'''Light Colour'''
 +
| style="height:20px; width:100px; text-align:center;" |'''Object Colour'''
 +
| style="height:20px; width:100px; text-align:center;" |'''Appearance'''
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Blue
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Green
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
|}
 +
 
 +
===Colour Filters===
 +
{| class="wikitable"
 +
|-
 +
|[[File:ColourFilterRed.png|center|300px]]
 +
|[[File:ColourFilterBlue.png|center|300px]]
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |A red filter only [[transmit]]s red [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
| style="height:20px; width:200px; text-align:center;" |A blue filter only [[transmit]]s blue [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
 +
|}
 +
: [[Colour]] filters work by [[Absorb (Physics)|absorbing]] some [[frequency|frequencies]] of [[light]] while [[transmit]]ting others.
 +
: Looking through a [[colour]] filter makes any [[object]] whose [[colour]] is [[Absorb (Physics)|absorbed]] appear black.
 +
 
 +
{| class="wikitable"
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |'''Colour Filter'''
 +
| style="height:20px; width:100px; text-align:center;" |'''Object Colour'''
 +
| style="height:20px; width:100px; text-align:center;" |'''Appearance'''
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Blue
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Green
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Blue
 +
| style="height:20px; width:100px; text-align:center;" |Black
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Magenta
 +
| style="height:20px; width:100px; text-align:center;" |Red
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Cyan
 +
| style="height:20px; width:100px; text-align:center;" |Green
 +
|-
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
| style="height:20px; width:100px; text-align:center;" |Yellow
 +
|}
 +
 
 +
===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 ''Colour, page 226-7, 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 ''Colour, pages 206-207, GCSE Physics; Third Edition, Oxford University Press, 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 ''Colour, pages 253, 254, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac56 ''Colours, page 85, GCSE Physics; 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 ''Filters (colour), page 254, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac171 ''Filters (colour), page 85, GCSE Physics; The Revision Guide, CGP, 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 ''Colour, pages 68-69, GCSE Physics, 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 ''Colour, pages 164-165, Gateway GCSE Physics, Oxford, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; bromine reactions, page 233, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; equilibrium position, page 189, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; manganite/manganese ions, page 327, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; metal hydroxide precipitates, page 149, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; silver halide precipitates, page 151, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Colours; transition metal compounds, page 141, Gateway GCSE Chemistry, Oxford, OCR  '']

Latest revision as of 11:13, 28 May 2024

Key Stage 1

All the colours in the rainbow.

Meaning

Colour is something we see with our eyes.

Singular Noun: Colour
Plural Noun: Colours
Verb: Colour

About Colours

The colours we can see are red, orange, yellow, green, blue, indigo and violet. If you mix colours of paint together you can get another colour. Red and yellow paint mixed together makes orange. Blue and yellow paint mixed together make green. Blue and red paint mixed together makes purple. If you mix all three you can make brown.

Examples

Grass.png
RosePicture.png
Grass is a green colour. The colour of this rose is red.
Sky.png
SunPainting.png
The sky is blue in colour. I will colour in The Sun yellow with paint.

Key Stage 3

Meaning

Colour is a property of objects that we can see.

About Colour

White light can be divided into 7 colours:

  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet
Red light has the lowest frequency and the longest wavelength.
Violet light has the highest frequency and the shortest wavelength.

Colour and Objects

RedObjectColour.png
BlueObjectColour.png
A red object reflects red light but absorbs all the others colours. A blue object reflects blue light but absorbs all the others colours.

Eyes and Colour

The human eyes only have three different colour sensing cells called cones. They can detect; red, green or blue light. All other colours we see are caused by a pair of different cones detecting light at the same time.
If the red cones and blue cones both detect light then we see magenta.
If the red cones and green cones both detect light then we see yellow.
If the blue cones and green cones both detect light then we see cyan.

Coloured Mixing

ColourMixing.png
Magenta can be made by mixing red and blue light.
Yellow can be made by mixing red and green light.
Cyan can be made by mixing blue and green light.
White can be made by mixing red, blue and green light.

Primary Colours

Primary Coloured Objects
RedLight.gif
A red object appears red under red light.
A blue object appears black under red light.
A green object appears black under red light.
BlueLight.gif
A red object appears black under blue light.
A blue object appears blue under blue light.
A green object appears black under blue light.
GreenLight.gif
A red object appears black under green light.
A blue object appears black under green light.
A green object appears green under green light.

Secondary Colours

Secondary Coloured Objects
RedLightMCY.gif
A yellow object appears red under red light.
A cyan object appears black under red light.
A magenta object appears red under red light.
BlueLightMCY.gif
A yellow object appears black under blue light.
A cyan object appears blue under blue light.
A magenta object appears blue under blue light.
GreenLightMCY.gif
A yellow object appears green under green light.
A cyan object appears green under green light.
A magenta object appears black under green light.
Secondary Coloured Lights
YellowLight.gif
A red object appears red under yellow light.
A blue object appears black under yellow light.
A green object appears green under yellow light.
CyanLight.gif
A red object appears black under cyan light.
A blue object appears blue under cyan light.
A green object appears green under cyan light.
MagentaLight.gif
A red object appears red under magenta light.
A blue object appears blue under magenta light.
A green object appears black under magenta light.

Colour Filters

Primary Coloured Filters
RedFilter.gif

Through a red filter:

A red object appears red.
A blue object appears black.
A green object appears black.
A yellow object appears red.
A cyan object appears black.
A magenta object appears red.
BlueFilter.gif

Through a blue filter:

A red object appears black.
A blue object appears blue.
A green object appears black.
A yellow object appears black.
A cyan object appears blue.
A magenta object appears blue.
GreenFilter.gif

Through a green filter:

A red object appears black.
A blue object appears black.
A green object appears green.
A yellow object appears green.
A cyan object appears green.
A magenta object appears black.
Primary Coloured Filters
YellowFilter.gif

Through a yellow filter:

A red object appears red.
A blue object appears black.
A green object appears green.
A yellow object appears yellow.
A cyan object appears green.
A magenta object appears red.
CyanFilter.gif

Through a cyan filter:

A red object appears black.
A blue object appears blue.
A green object appears green.
A yellow object appears green.
A cyan object appears cyan.
A magenta object appears blue.
MagentaFilter.gif

Through a magenta filter:

A red object appears red.
A blue object appears blue.
A green object appears black.
A yellow object appears red.
A cyan object appears blue.
A magenta object appears magenta.

Key Stage 4

Meaning

Colour is a property of objects that we can see.

About Colour

White light can be divided into 7 colours:

  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet
Red light has the lowest frequency and the longest wavelength.
Violet light has the highest frequency and the shortest wavelength.
An object may appear to have a colour for three reasons:

Eyes and Colour

The human eyes only have three different colour sensing cells called cones. They can detect; red, green or blue light. All other colours we see are caused by a pair of different cones detecting light at the same time.
If the red cones and blue cones both detect light then we see magenta.
If the red cones and green cones both detect light then we see yellow.
If the blue cones and green cones both detect light then we see cyan.

Coloured Mixing

Additive Colours

The additive primary colours are Red, Blue and Green. This means when two colours of light are added, they make new colours.
ColourMixing.png
Magenta can be made by mixing red and blue light.
Yellow can be made by mixing red and green light.
Cyan can be made by mixing blue and green light.
White can be made by mixing red, blue and green light.

Colour and Reflection

Subtractive Primary Colours

SubtractiveColourMixing.png
Magenta paint reflects red and blue light but absorbs green light.
Cyan paint reflects blue and green light but absorbs red light.
Yellow paint reflects red and green light but absorbs blue light.
Mixing Magenta and Cyan paints makes a new paint which absorbs green light and red light. The new paint appears blue because that is the only colour it reflects.
Mixing Cyan and Yellow paints makes a new paint which absorbs red light and blue light. The new paint appears green because that is the only colour it reflects.
Mixing Magenta and Yellow paints makes a new paint which absorbs green light and blue light. The new paint appears red because that is the only colour it reflects.

Adding a little extra of one colour over another can go on to give different colours.

Magenta > Cyan gives purple.
Cyan > Magenta gives pale blue.
Cyan > Yellow gives turquoise.
Yellow > Cyan gives lime green.
Magenta > Yellow gives pink.
Yellow > Magenta gives orange.
RedObjectColour.png
BlueObjectColour.png
A red object reflects red light but absorbs all the others colours. A blue object reflects blue light but absorbs all the others colours.
Colour exists because objects absorb some frequencies of light but reflects other frequencies.
A coloured object absorbs some colours and reflects others appearing the colour of the reflected light. For example leaves are green because the chlorophyll inside them absorbs red and blue light but not green.
When coloured objects are mixed such as paint they absorb certain colours. The more different colour paints added, the more colours they absorb.
In art the focus is on these subtractive primary colours; Magenta, Cyan and Yellow. When objects with these colours are mixed the object will preferentially absorb certain frequencies of light allowing only certain colours to be reflected.

Coloured Objects Under Light Coloured Light

Light Colour Object Colour Appearance
Red Red Red
Blue Black
Green Black
Magenta Red
Cyan Black
Yellow Red
Blue Red Black
Blue Blue
Green Black
Magenta Blue
Cyan Blue
Yellow Black
Green Red Black
Blue Black
Green Green
Magenta Black
Cyan Green
Yellow Green
Magenta Red Red
Blue Blue
Green Black
Magenta Magenta
Cyan Blue
Yellow Red
Cyan Red Black
Blue Blue
Green Green
Magenta Blue
Cyan Cyan
Yellow Green
Yellow Red Red
Blue Black
Green Green
Magenta Red
Cyan Green
Yellow Yellow

Colour Filters

ColourFilterRed.png
ColourFilterBlue.png
A red filter only transmits red light but absorbs all the others colours. A blue filter only transmits blue light but absorbs all the others colours.
Colour filters work by absorbing some frequencies of light while transmitting others.
Looking through a colour filter makes any object whose colour is absorbed appear black.
Colour Filter Object Colour Appearance
Red Red Red
Blue Black
Green Black
Magenta Red
Cyan Black
Yellow Red
Blue Red Black
Blue Blue
Green Black
Magenta Blue
Cyan Blue
Yellow Black
Green Red Black
Blue Black
Green Green
Magenta Black
Cyan Green
Yellow Green
Magenta Red Red
Blue Blue
Green Black
Magenta Magenta
Cyan Blue
Yellow Red
Cyan Red Black
Blue Blue
Green Green
Magenta Blue
Cyan Cyan
Yellow Green
Yellow Red Red
Blue Black
Green Green
Magenta Red
Cyan Green
Yellow Yellow

References

AQA

Colour, page 226-7, GCSE Physics; Student Book, Collins, AQA
Colour, pages 206-207, GCSE Physics; Third Edition, Oxford University Press, AQA
Colour, pages 253, 254, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Colours, page 85, GCSE Physics; The Revision Guide, CGP, AQA
Filters (colour), page 254, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Filters (colour), page 85, GCSE Physics; The Revision Guide, CGP, AQA

Edexcel

Colour, pages 68-69, GCSE Physics, Pearson Edexcel

OCR

Colour, pages 164-165, Gateway GCSE Physics, Oxford, OCR
Colours; bromine reactions, page 233, Gateway GCSE Chemistry, Oxford, OCR
Colours; equilibrium position, page 189, Gateway GCSE Chemistry, Oxford, OCR
Colours; manganite/manganese ions, page 327, Gateway GCSE Chemistry, Oxford, OCR
Colours; metal hydroxide precipitates, page 149, Gateway GCSE Chemistry, Oxford, OCR
Colours; silver halide precipitates, page 151, Gateway GCSE Chemistry, Oxford, OCR
Colours; transition metal compounds, page 141, Gateway GCSE Chemistry, Oxford, OCR
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