Colour and Colour Filters - GCSE Physics

This video introduces colour. There are three primary colours: red, green and blue. This is different to art where the three primary colours are red, yellow and blue. Red and green combine to make yellow, red and blue make magenta and green and blue make cyan. All three colours combined make white light.
Colour filters work by only letting certain frequencies of light through. A coloured filter will only transmit light through with wavelengths that correspond to the same colour as it. The filters absorb every other colour. Therefore colours viewed through a filter of a different colour will appear black and white will appear the same colour as the filter. Two filters of different colours put one before the other will block all incident light.
Thanks for watching,
Lewis
Relevant for GCSE Physics 9-1 in the following exam boards:
AQA (including Trilogy) (Physics only)
Edexcel (Physics only)
OCR A (Physics only)
OCR B (Physics only)
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Пікірлер: 65

  • @duskiiiyy4872
    @duskiiiyy48722 жыл бұрын

    dude that ending was dope as helll

  • @jonc.5387
    @jonc.53872 жыл бұрын

    That was a clever transition to end card I can't lie.

  • @PhysicsOnline

    @PhysicsOnline

    2 жыл бұрын

    Thanks

  • @ricardomilos4983
    @ricardomilos49833 жыл бұрын

    He be spittin straight facts

  • @atandasodiq9654
    @atandasodiq9654 Жыл бұрын

    This is surely going to help me for my phisics test tomorrow

  • @lilnoodle3847
    @lilnoodle38477 ай бұрын

    Thank you very much, that is the explanation I needed for my final exam!!!!!

  • @localidiotfromkyrgyzstan
    @localidiotfromkyrgyzstan2 жыл бұрын

    Green filter left the chat

  • @atayafikri4437
    @atayafikri44372 жыл бұрын

    My teacher send me the link of this video to open and learn about it😎

  • @Ultrabhaiz
    @Ultrabhaiz Жыл бұрын

    Nothing just the concept of dry cell into a very transparent way🇮🇳

  • @thomasblack9038
    @thomasblack903810 ай бұрын

    Thank you. This gave me the explanation I was looking for.

  • @mbm2675
    @mbm26753 жыл бұрын

    Thank you so much this was very helpful!

  • @shahimqatarneh6487
    @shahimqatarneh64873 жыл бұрын

    Thank you very much for this fantastic explanation

  • @ridhimak4577
    @ridhimak45772 жыл бұрын

    Amazing video thank you

  • @randomuser5446
    @randomuser54462 жыл бұрын

    Nice video really like the explanation definetly gonna help me pass my assessment really appreciate it

  • @cesarpereyra2289
    @cesarpereyra22892 жыл бұрын

    Amazing video! Where did you purchase that?

  • @hafsahsiddiquah3526
    @hafsahsiddiquah3526 Жыл бұрын

    3:48 How did you draw a perfect line?? Great video btw!

  • @samhendersonn
    @samhendersonn Жыл бұрын

    Perfect

  • @eyeojo
    @eyeojo Жыл бұрын

    Thank you!

  • @Verradonairun
    @Verradonairun Жыл бұрын

    Can I use filters like these to determine the color composition of a mixture of different pigments, such as a mix of different colored paints?

  • @assassinpsycho1662
    @assassinpsycho16624 жыл бұрын

    I’m commenting bcos I’m at ur speech😘

  • @PhysicsOnline

    @PhysicsOnline

    4 жыл бұрын

    Hope you’ve enjoyed it, the talks are brilliant.

  • @Willtabixx

    @Willtabixx

    3 жыл бұрын

    what is the "😘" for

  • @muhammadabrar6230
    @muhammadabrar62303 жыл бұрын

    By far the clearest explanation i found.. the way you explained helped in understanding the topic most , at least for me.. what i am actually looking for is the way to turn red light into white or some other color through filter if that's actually possible.. The question in my mind now is that, what happens if you use Secondary color filters in front of RGB.. But I think it's easily derivable now though a practical viewpoint would clear things out way farther.. thanks

  • @600322
    @6003222 жыл бұрын

    I bought a cheap led light drl strip for the car.But the annoying fact is that it has a greenish tint due to the cob leds are emitting blueish light I think and then the light passes a layer of yellow phosphor-but the end result is a deviance from the 4500K drl.Is there a color filter which can sort out the green component and leave a pure white 4500-600K pass through?

  • @vidhantkadam2109
    @vidhantkadam21096 ай бұрын

    Great explanation

  • @sandraachieng8282
    @sandraachieng82822 жыл бұрын

    hello what material are the optical filters used?

  • @nivedhasrinivasan7828
    @nivedhasrinivasan78282 жыл бұрын

    Will the wavelength changes with the filter color?

  • @zahiddogan
    @zahiddogan Жыл бұрын

    But what makes red filter to be able to stop green and blue lights? Is it something about atomic scale or nanoscale property of filter materials? Wavelength of visible colours hundreds nanometers

  • @xstarryx1

    @xstarryx1

    5 ай бұрын

  • @adamchu5650
    @adamchu56504 жыл бұрын

    That's just useful

  • @player1111ful
    @player1111ful Жыл бұрын

    Hi interesting. I was wondering what material are the green, red, blue light filters made of or do you have a link where i can buy them? Love from Australia.

  • @PhysicsOnline

    @PhysicsOnline

    Жыл бұрын

    I’m not sure what they’re made from - I bought these ones on Amazon.

  • @banajadandasena4142
    @banajadandasena41422 жыл бұрын

    But how that filter works? How it blocks all colour?

  • @ARCSTREAMS
    @ARCSTREAMS7 күн бұрын

    why were the red lines visible at first then seemed to be disappearing when looking into the red filter at the end of the vid?

  • @myaestheticlife7403
    @myaestheticlife74033 жыл бұрын

    so like red filter lets only red light through and blue filter lets blue light through and green filter lets green light through right?

  • @PhysicsOnline

    @PhysicsOnline

    3 жыл бұрын

    Right

  • @9019
    @90192 жыл бұрын

    i want to implement that on a keyboard so bad

  • @hakki.7637
    @hakki.76373 жыл бұрын

    nice!

  • @PhysicsOnline

    @PhysicsOnline

    3 жыл бұрын

    Thank you! Cheers!

  • @Narsuitus
    @Narsuitus10 ай бұрын

    If you pass sunlight through a prism, the light is split into all the colors of the rainbow. If you pass through a prism, white light that was created by combined red, green, and blue light, would the white light split into all the colors of the rainbow or just RBG?

  • @anasmohamedmahdy5241
    @anasmohamedmahdy52413 жыл бұрын

    thanks

  • @theweeknd6796
    @theweeknd67964 жыл бұрын

    Hi I just wanted to know when you are going to add some more videos for aqa a level videos. Particles and radiation and quantum phenomena you are missing some videos.

  • @PhysicsOnline

    @PhysicsOnline

    4 жыл бұрын

    Hi, at the moment (until the end of December) it’s all out GCSE. Than Jan onwards it’s back to A Level, I know the ones I need to make so it’s all planned out.

  • @theweeknd6796

    @theweeknd6796

    4 жыл бұрын

    @@PhysicsOnline Will you cover all of a-level before June exams?

  • @theweeknd6796

    @theweeknd6796

    4 жыл бұрын

    @@PhysicsOnline Thanks for the help!

  • @theweeknd6796

    @theweeknd6796

    4 жыл бұрын

    @@PhysicsOnline Thanks for the help!

  • @near--zero
    @near--zero10 ай бұрын

    Will a secondary color filter such as magenta allow red or blue light at a lower intensity to pass through only the magenta component? (Will a magenta filter allow light through if the source is one of the primary colors which comprise it such as blue or red?)

  • @leosho.28

    @leosho.28

    Ай бұрын

    A magenta color filter allows both red and blue light to pass through it. It does not only allow a specific "magenta component" but rather the individual red and blue components that make up the color magenta. The intensity of the light passing through might be slightly lower due to absorption and material imperfections, but both red and blue light will be transmitted by a magenta filter.

  • @gabyottich7020
    @gabyottich70202 ай бұрын

    Does this effect happen with colored glasses?

  • @conorneligan7694
    @conorneligan76943 жыл бұрын

    A blue filter lets blue light through but not red or green light

  • @davidlaffey5034
    @davidlaffey50343 жыл бұрын

    When white light is shined on paper it is reflected

  • @fadak.r8327
    @fadak.r83274 жыл бұрын

    Hey I wanted to know what happens if you get a u grade in AS and a grade in A level (p.s I'm not living in the UK and we take A level in 2 years) I would love it and appreciate it so much if u help me 🙂 Thank u for the video it helped me a lottttt tho 😍😍

  • @theashiganvijayakumaran8611
    @theashiganvijayakumaran86114 жыл бұрын

    nice video but it's sad to see that you don't have a whole blue brick

  • @fadak.r8327
    @fadak.r83274 жыл бұрын

    Hellow please someone help me??!!

  • @tris0913

    @tris0913

    3 жыл бұрын

    no

  • @fadak.r8327

    @fadak.r8327

    3 жыл бұрын

    @@tris0913 wow u have the audacity to say no😒☻ go read my first comment and u will c y... it's the last comment..... i don't need any help anymore 🤨

  • @robloxhelperguides779
    @robloxhelperguides7792 жыл бұрын

    My science teacher said that the primary colours of light are red blue and yellow

  • @PhysicsOnline

    @PhysicsOnline

    2 жыл бұрын

    Nope!

  • @robloxhelperguides779

    @robloxhelperguides779

    2 жыл бұрын

    @@PhysicsOnline Okay, also i have a science test tomorrow and I dont understand a part which says, what light would you see in white light with a cyan filter. Can you tell me and explain it please And theres another one which says what light would you see in white light with magenta and red filter. Please explain to me thanks.

  • @robloxhelperguides779

    @robloxhelperguides779

    2 жыл бұрын

    @@PhysicsOnline can you please tell me

  • @robloxhelperguides779

    @robloxhelperguides779

    2 жыл бұрын

    @@PhysicsOnline Please can you tell me about this because my test is in 30 mins

  • @thesenate1537

    @thesenate1537

    Жыл бұрын

    @@robloxhelperguides779 😢😢😢😢

  • @Cristiano.ry7
    @Cristiano.ry7Ай бұрын

    Who’s here in 2024 to pass there science exams?💀

  • @nogginz3194
    @nogginz31943 жыл бұрын

    Anyone here for school?

  • @TitanusWho

    @TitanusWho

    3 жыл бұрын

    me