GCSE Physics - Visible Light and Colour #71
HTML-код
- Опубликовано: 15 май 2024
- 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 Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
I once ate a chemical
Relatable
my friend chewed on a strip of magnesium ribbon in year 7
@@groggers I like your friend
I drank one it was Sodium hypochlorite
U naaiers r on tik
isnt yellow a primary color instead of green, cuz green can be made from blue and yellow?
Weirdly the primary colours differ between art and physics. For light, the primary colours are red blue and green
@@Cognitoedu ohh alright thanku!
Remember it as RGB red green blue
u probs dont care now anyway tho after 2 years
@@Curry_Muncher69420maybe
here from 2023
@@Curry_Muncher69420
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?🤷🏾♀️😊
My whole life's been a lie
I didn't know that the primary colours changes when it comes to physics-
It’s because in physics it’s usually about the actual waves of light being emitted such as on a screen however in art pigments absorb every colour except the one they appear as. So if you mix all the primary colours in art it becomes a black-brown colour since many different wavelengths are being absorbed, but in physics since it’s talking about the act light not an object or pigment when all the primary colours mix it appears white
who else has to watch this because of their google classroom class?
my teacher put it on the google classroom today
me my teacher is so exigent whit this
@@picklejuice8210 rich kid
@@picklejuice8210 idk classroom better tho
Meeeeeee
Barakallah. Thank you so much, this video was an amazing ❤️❤️❤️🥺🥺
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.
Hey hope the test went well? Thanks for your support and happy to hear it helped!
@@Cognitoedu second highest in the grade!
@@Cognitoedu trouble is calling light colours is wrong, colour doesn't happen until it gets into the brain, the universe is grey. rods and cones detect energy levels and colour gets assigned later, light coming into the eye has no intrinsic colour.
bruv edexcel dont care so we dont care @@HarryNicNicholas
If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/p2-gcse-aqa-h-t_4.13. The platform’s totally free, and has been built to make learning and revision as easy as possible. The main features are:
- 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
Simply amazing… you have an amazing ability to explain things and make it so easy for the students 👏🏻
@Cognitio i thought red and blue wavelengths made magenta wavelengths not indigo....idk
Woooh nice video. Keep up the. Good work mate your doing great😁😁
I have a test tomwr thanks for your help!! It made me understand so much better!
Thank you, thank you, thank you! sooo helpful!
awesome video! keep making them, it really helps a lot
Thanks for the comment and really happy to hear you found it useful!
My teacher put me to make a summary of your video XD
thanks man very helpful even a 2 years later
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.
any one else here because your science teacher is making you watch it??
I'm here because my science teacher is making me take exams but hasn't given me work in 6 moths
@@doraschaer2388 may I ask what grade is this topic in?
@@tutankhamun6871 O-levels
Because of this video we now know how to make defective stormcloaks wear the proper imperial colours. The jarl thanks you.
Glory to the empire
Its 6 .30 and 8 ,o clock I'll be in school giving my paper 😂😂😂
V.helpful
Are you going to make a-level videos?
I have a really big test about this tomorrow, and I didn't understand anything, but you helped me understand in less than 6 minutes! ( You saved my grades ). TYSM!
Same
Orange you glad that you revised this topic😅
yellow isn't primary colour ? i thought it was
yellow is but in light its not and green is, yellow is a primary color because blue and yellow make green, the primary colors are blue, red and yellow.
you my best friend bro tysm
dark side of the moon reference
anyone else whos teacher set these?
no?
noone?
dang...
It’s summer break for me. Just studying for year 11 haha.
Me
Mine lol
my teach did
Please make A- level videos
How are other colours made which are not on the spectrum
A bit late but white is made from all the wavelengths (colours) being equally reflected and black is made from all wavelengths being absorbed
0:13 no one:
me looking for my favourite colour on the spectrum: 🌈
hank you for the content. Can you pu some music and speak vividly please.
Happy birthday albin!!
Its not me birthday
its not me dirty day
@@poopywoopy1350who the flip are you m8
im albin
im mr mcfereson
My teacher brought me here
same
ok cool
I don’t wanna like cause there’s 666 likes
Bruh
bruh
Pov:you need this because you didn't understand the Discuss im i right?🙂