GCSE Physics - Visible Light and Colour #71

This video covers:
- Why objects appear the colour they do
- What happens when light is absorbed, reflected and transmitted
- What makes objects appear opaque, transparent and translucent
- How colour filters work

Exam board specific info:
AQA - Separate/triple science only
IGCSE Edexcel - Don't need to know the details of this video, only watch for general interest :)
Edexcel - Separate/triple science only
OCR 21st Century - Separate/triple science only
OCR Gateway - Separate/triple science only

Maths Playlist:

GCSE Chemistry playlist:

GCSE Biology Playlist:

GCSE Physics Playlist:

[Cognitoedu]

- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[aayushkal]

isnt yellow a primary color instead of green, cuz green can be made from blue and yellow?

[kyrie]

Keep making these it helps at lot thank you so much for your time. I have an app that I use to download music and I download your videos onto it. I listen to the ones I tend to forget or struggle with every morning before I go to college and after college as I have a long journey, its helps me remember. I’ve been doing it for almost two weeks now and I also revise.

I was doing triple science higher but I recently moved down to combined higher so I’m really just trying to do the best of my ability and aim for a high grade to move on. Why not?🤷🏾‍♀️😊

[nightleafakaurboi]

I know this may be physics, not chemistry. But I'd like to say thank you. I'm a year 10 in year 11 chemistry and I have my first test tomorrow. I've been kinda stressed but these videos explain things in a simple, yet effective way.

[norey]

My whole life's been a lie
I didn't know that the primary colours changes when it comes to physics-

[HammtariProductions]

who else has to watch this because of their google classroom class?

[fenudyasanding]

Barakallah. Thank you so much, this video was an amazing ❤️❤️❤️🥺🥺

[anthonylee]

awesome video! keep making them, it really helps a lot

[MarcoHernandez-wdzj]

My teacher put me to make a summary of your video XD

[wafakhader]

Simply amazing… you have an amazing ability to explain things and make it so easy for the students 👏🏻

[mimisolo]

Actually, the spectrum doesn't go all the way to violet, it stops at blue. If we don't have a cone in our eyes for the colour we're looking at, we tend to see the colour in between two of the cones we do have, e.g. if we see red light and green light we might interpret it as yellow light. But in between blue and red on the spectrum is green, and if we happen to know we aren't looking at green because our green cone isn't firing, then our brain invents a colour, which is how we see purple.

[plxy.]

thanks man very helpful even a 2 years later

[thivyasri]

@Cognitio i thought red and blue wavelengths made magenta wavelengths not indigo....idk

[solitudeguard]

Because of this video we now know how to make defective stormcloaks wear the proper imperial colours. The jarl thanks you.

[erindavis]

any one else here because your science teacher is making you watch it??

[ernieakarenegampay]

Woooh nice video. Keep up the. Good work mate your doing great😁😁

[wakysmithys]

anyone else whos teacher set these?

no?


noone?


dang...

[kgatlhisomm]

yellow isn't primary colour ? i thought it was

[ISZgaming]

got a 8 in physics in my gcses in 2023 and for some reason our teacher never taught us this so im having to learn it now for a levels

[marysongclub]

Thank you, thank you, thank you! sooo helpful!