GCSE Physics - Conduction, Convection and Radiation #5

In this video we cover:
- The 3 ways heat energy can be transferred
- How heat is conducted through solids
- What thermal conductivity means
- How convection cycles work
- What radiation is

General info:
- Even if you don’t need to know the details for your course, it's worth watching to understand the concepts

Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - You do not need to know conduction or convection in detail, so you can skip to 4:45
OCR 21st Century - You do not need to know conduction or convection in detail, so you can skip to 4:45
OCR Gateway - Everything is relevant to your course!

[Cognitoedu]

Hello everyone! At 3:30 we make an error in the narration. We *should* say: "Because they're less dense, these particles rise above the colder, MORE DENSE particles above them."


As an aside, we'd really love to hear any constructive feedback you may have for this video (and the others!). We spend a lot of time trying to guess what people will find clear/helpful to understand, and which bits are harder to grasp from the videos - we're bound to get it wrong from time to time, and it would really help us to hear which bits work well for you, and which bits work less well :) Many thanks, and wishing you all good luck!

[fel]

start of the video: burning a calculator


me: oh i love this video already

[justazek]

I have a science test about Convection, Conduction, and Radiation TOMORROW and this helped me a lot! Thank you so much!

[luigiangelil]

My teacher took around two weeks to explain this and you did it in 5 minutes. Thank you so much

[Natalie-cgcp]

I'm doing some last minute revision before my physics paper 2 tomorrow, and I just wanted to say a huge thank you! I honestly cannot thank you enough for all of your help. I discovered your channel about a year ago, when I was really struggling with physics- my teacher wasn't the best, and I was stuck on 6s and 7s. When I started watching these videos, I genuinely felt like something clicked in my mind, you explain things in such a logical way, and I love the interactive animations! Before long, I was getting solid 9s in my mocks, and I can safely say that it is down to you. You have made so many difficult concepts make sense, and have alleviated all of my worries for science. Thank you so much Cognito, I hope you realise how much positive impact you have! You have transformed me, and so many other peoples' learning, and made it such a fun and enjoyable experience.

[mauvieyy]

i never quite preferred learning online, but exams are near and somehow i need to ace it and ngl found a perfect youtuber for it 😅✌🏻✨ (p.s. its so wonderful learning all those awful chapters for hours into just a few minutes video)

[sopstr]

you explained this 10 times better than my cgp textbook did after two hours of reading it and still barely understanding anything. thankyou so much your gcse series courses are very helpfull. they are so well explained and easy to understand

[abnormal]

thank you sir
you just “transferred knowledge” to me in a process known as video teaching
thank you so much once again

[diyanarsani]

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[charlieruffy]

I have a Physics test on Heat and temperature tomorrow, this helped me so much! Great explaining btw.

[melonplayzroblox]

Omg I have a test tomorrow and I never really understood this topic. I chose to watch this video because of all the good comments and turns out they were not wrong!! I will subscribe to your channel. Thank you so much for making these. Please continue to do so!!! :)

[Star_BaconXD]

I haven’t seen anyone that perfect is teaching, ur a goat

[osamasadigh]

this helped me ALOT thank you very much Cognito, literally anything i need to use for physics, chemistry, math and biology is all here. Thank you and this helped me alot.

[qomma]

Like 80% of these views have been from coronavirus online learning

[chloelondon]

Put your hand if ur in 2023 and your watching it to support you in your test so you don't struggle ✋

[atoz]

So in summary:
Conduction - Particles stay at same point. It happens in Solids. (Vibrates to transfer heat energy)
Convection - Particles move and transfer heat energy - It happens in fluids(liquids and gases)
Radiation - No matter at all.

[nuraemarufa]

Better explanation than my 40 year old physics teacher

[evlynm]

I’m watching this cuz my teacher didn’t explain radiation and I still got an assignment on it

[mabzland]

This helped me a lot bc we are having a test today and I also have a b+ thank you so much for making this❤️❤️❤️👍👍

[diyanarsani]

This is really helpful. I can revise for my online chemistry and physics assessment.