GCSE Physics - Conduction, Convection and Radiation #5

[@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!

[@odacove9823]

Cognito pls can u answer me quickly if you mix hot water with cold water is heat transferred by conduction or convection

[@olafusiolamide27]

@@odacove9823 Solids is conduction and liquid+gas is convection In a vacuum like space it is radiation

[@praveenaram5582]

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[@PriyaSingh-yc3is]

Oh come on its okay 👌

[@OmniPlayz_TTV]

@@odacove9823 convection as it takes place with fluids

[@fel69420]

start of the video: burning a calculator me: oh i love this video already

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Lol 😂😂

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1 yes 2 love ur pfp and the anime

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lol i thought suga loves studying haha

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Akward😐😳

[@fel69420]

@@jbsjdbsibja9441 nah it’s just for show 😌

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Anyone watching this in 2024 for exams? 😂

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Yup😂

[@aaworld3084]

Yep

[@amayafrfr]

Im kinda cooked my test is tmmr

[@Simplewriter586]

Omg yesss my test is next week ahhhh

[@zubairazad301]

Yas

[@Cognitoedu]

If you'd like to see all of our videos arranged for your course along with past papers etc, then try out our free website - www.cognitoedu.org

[@Jewel-u4t]

OMGGGG after creating an account, science is so fun, I love the cute animated things they are so motivating, this is amazing

[@Jewel-u4t]

For some reason I cannnot get over the fact of how good this is hahah thx again

[@justazek]

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

[@Cognitoedu]

Hey thank you for the comment! Really happy to hear this helped you :) good luck with all your work!

[@naysoehtoo2122]

Azek Clapzz did you do good on the test?

[@justazek]

@abdullah iftikhar Okay, you can stop bragging.

[@justazek]

@abdullah iftikhar Its "video" btw not vidio.

[@justazek]

@abdullah iftikhar Well, your making a little too much mistakes dude.

[@luigiangelil4546]

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

[@itssayam776]

Same here

[@millier7625]

same here xx

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an entire month for me

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brooo, same shit happened with me, she took 4 lessons (2 weeks) to explain this, and i didnt understand her, but cognito rlly helped alot

[@VIVIDPERSONEL]

really helped on my Cambridge exam. i got 7A+ now I'm going to OXFORD UNIVERSITY! THANKS ALOT

[@musaali-x8g]

gratz :))

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aint no way nigga u are probably 14 😭😭

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Cap

[@Natalie-cg7cp]

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.

[@chinmayeesaikia6507]

In which grade are you studying? Grade 9 IGCSE?

[@sweetdon9451]

@@chinmayeesaikia6507 yes

[@mossgaming4247]

same story

[@Kikigoowy]

Hi natalie

[@mauvieyy9083]

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)

[@sopstr192]

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

[@Cognitoedu]

Great to hear you found it useful - thanks!

[@Star_BaconXD]

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

[@charlieruffy3374]

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

[@BeeSwarmGrinder-z2j]

4:23 THE CAT IS THE MOST HANDSOME CAT IVE EVER SEEN AND IT GAVE ME SOME EDUCATION!

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

[@Cognitoedu]

👏👏👏

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This is my first best educational channel. Because of this channel, i understood everything and now its easy for me. Thank you so much.🙏🙏🙏🙏

[@JanetKanungwe]

Any grade 7 watching this I 4:03 I pray you will pass❤

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Actually grade 8

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

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LOL YEAH or just tests

[@doraemonlovers7107]

True

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True x10

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Yup

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Man you are such a goat person, literally watching this before my p2 tomorrow and all thanks to you for saving it🙏

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

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Yeah I'm using it for exam I'm in ss1

[@noormohamed1294]

Same

[@eiliyahinayalive5004]

Yes

[@melonplayzroblox1266]

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!!! :)

[@ajibeji02]

taught it better in 6 minutes than my physics teacher did in two hours

[@owenbell]

Who else is watching this from your teacher cuz corona?

[@leah-xm6du]

redanaxle _ 😗✌️

[@diyanarsani6862]

Me

[@macylatham4316]

Yup

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your mom

[@Shadow-xb1in]

Me

[@diyanarsani6862]

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

[@mabzland1593]

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❤️❤️❤️👍👍

[@spndons.]

u proud of b+? Like srsly?? LOL XD Then you are one of those bad students XDD!

[@sanunstudios]

@@spndons. and you're one of those unkind, disliked and bigheaded students who can't help but be mean about someone.

[@spndons.]

@@sanunstudios Hell yea, so what's your problem you "b+" man??!!

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[@RealVesper]

Who else is watching this video because of online classes due to the Corona Virus :}

[@markbroussard9731]

same

[@onion8761]

Mobit the Wingman my gosh yes!

[@husaynahmad4480]

yh me

[@naomielizabethvlogs5024]

me!!!!

[@Rin-dm2cq]

me!!!!!

[@nuraemarufa7109]

Better explanation than my 40 year old physics teacher

[@studyvib3s_]

thank you so much i've been struggling with physics a lot as my new teacher isn't the best so this really helps

[@facts3427]

I have my finals tomorrow and this helped so much, I was unable to understand thermal physics but this video made me understand it in a few minutes. Thanks! Keep up the good work.

[@eiliyahinayalive5004]

Me same

[@atoz9254]

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.

[@ishikamongia1267]

THANK YOU

[@aditijain3516]

the best revision site..

[@paintingwithhadiyamoeed9057]

very nice video.& explained in very simplified way....it helps kids a lot to understand difference between these three..... thanx for sharing......

[@sinaanbilal]

Hello cognit, Thank u soo much for making this video, this is coming in my exam and understanded it, thanks again cognit for ur hard work😊

[@glenh5719]

Thank you so, so much! This really cleared things up! Great work!

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Thank you so much this is really helpful.you have earned ur self a new subscriber

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oof

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he only helped around 60k people but it is sill A LOTTTTTTTTTTT of people. Good videos and keep it up. This really means a lot to me. This is the best science channel. I just started a week ago. So, i am waching every single one of it welll not maths becuse i am TOOOO good top 1 in every exam lol.

[@Cognitoedu]

thanks!! we're really glad you're finding them useful 😊

[@thanansayanbalachandran6081]

@@Cognitoedu no problem keep it up

[@pretzulduck-q3d]

this guy literally made me pass my exam

[@mbs1137]

WHAT A LEGEND I HAVE A EXAM TOMMOROW AN DI HAVENT EVEN STUDY THIS HELPED ME SOOOOOOOOO MUCHHHHHHHHHH THANKS

[@Cognitoedu]

Glad we could help MBS11! 👍

[@Xsplore]

love your animations they give a more clearer explination thx

[@Cognitoedu]

Thanks, good to hear they helped :)

[@mahirpatel9832]

This video, surely help me in my finals. Thankyou very much🤝🏻, keep on uploading New videos 😊

[@ev3lynm629]

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

[@linostoe]

lmao

[@rnkk8947]

after watching this video i understand what is conduction, convection, radiation Thank you so much

[@ArtventureAnn]

Best teaching.. 😊

[@Jewel-u4t]

I was reading the textbook, and trying really hard to understand, but I couldn't, so I decided to watch a video on it, and wow this is so good i'm gonna nail my test. THANKYOU!

[@paperplanes9960]

this was so helpful thank you so much!!!!!!!! i love the style and how clear it is to understand, amazing job!

[@Cognitoedu]

Thank you! 🙌

[@MotazAlward]

Three years later graduated

[@marufhossain6697]

Before watching this video, I was mainly confused about how convection works on liquids but now everything is clear.

[@Comedy-d2p]

Great video greg!

[@omarfarouk3155]

who is Greg

[@misakichan5022]

TYSM!! I have a physics test tomorrow about this topic and I didn't quite understand but after watching this video my understanding got better!

[@misakoozz]

thanks for saving my life i have biology and physics exams together. It's helping me a lot to revisee xx

[@sulemanalimehkri7497]

this guy explained to me the topic better than my teacher who took 3 weeks to explain it Props to you

[@deeryyyyy707]

thank you so much, now thanks to you I can prepare easily for my test UwU

[@Cognitoedu]

You’re very welcome! Thank you for your support 👍

[@wilmabaldonado4872]

Great

[@moon_rocks1870]

28 seconds in and I learnt something that my teachers would probably never tell me but eventually find it on a test. Thank you, I own you so much

[@adyanahmed4140]

Own*

[@rehya8810]

Thank you sooo much for your help!! I got this question wrong in my GCSE physics mock and watching this made me understand the question soo much better :)) I have just watched two ads, so hopefully this helps (^^)

[@Cognitoedu]

Ah thanks Rehya we really appreciate it and we're glad we could help! 😊

[@zoryxz9066]

First of all, thank you for making these video's that are really easy to understand, and will they be helpful for Cambridge IGCSE's?

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yay iam from cambridge

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yuppp... thts wht i hav been using their vids fr

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thanks so much this is so useful i watched all your vids on this topic and got a 9 in my test!

[@Cognitoedu]

Well done Amelia, glad we could help 😊

[@kiaravxv]

me forgetting about this topic and remembering it on the morning of my gcses

[@rebeccarylatt2861]

literally 😭

[@dametrosd6593]

i have a test about this one and i passed!! thank u so much

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Well done !!!!

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Ur a life saver❤

[@timorlov3000]

I think you could include more IGCSE style question on the topic after each video!

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I am a big fan of your work! Do keep up the good work! I happily hope to see more!

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my God bless you with everything, I had no idea about it until this video. Many thanks!

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You literally taught better then my physics teacher and I cleared my concept that my physics teacher couldn’t make me clear in a whole year

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Great Video! Keep it up!

[@Cognitoedu]

Hi Gio - thanks for the lovely comment it means a lot :))

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yeah great Video!!!

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Thanks gang it's very informative and helped me pass my exams 🙏😭💀

[@vapaus831]

0:11 You heat your calculator 😂😂

[@Rolonoaleeharam]

I have a test tmrw and this video saved my life... Thank you so much

[@Cognitoedu]

Glad we could help, best of luck 🤞

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Thank you! This helped me for my JISMO competition at the end of this month!

[@liam0387]

Who else is watching this cause of corona virus from google classroom

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Me

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Whats your school?

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@@lunaplays7375 that's definitely not weird

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Yep

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Mine is microsoft teams tho

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this has saved my life i love you cogniti with my whole ❤ xxxx

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Ty so much I needed this for my pop quiz😊

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I am watching this from school, it is helpful

[@Ros4_xX]

I had a science test about convenction, radiation, and conduction and this HELPED SO MUCH, Shoutout to yall tyy especially at the 3:05 part

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god i cant thank you enough..............this has been unclear topic for me since my school .......i am 24 now......really explained well....i finally understood now

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I was given a random test for tommorow my teacher recommended you thank you so much for the videos

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did you pass

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This is really helpful and easy to understand!! Thank you so much for the VDO😊

[@Cognitoedu]

Thank you for watching! 😊

[@jaywhypapiuwu]

Hi, i have a question in this part, you 5:20 where you give an example for infrared waves, you say its because the of the infrared waves that cause your hand to feel warm, but isant it because of the air around it? I mean because the coal and metal heats the air?

[@savadavidovic4732]

Both explanations are correct, as both infrared radiation and convective heat contribute to the sensation of heat when you place your hand over a BBQ. The flames of the BBQ produce both types of heat: Convective Heat: This is the heat transferred through the movement of hot air. When the flames heat up the air around them, the hot air rises and comes into contact with your hand, making it feel hot. Infrared Radiation: The BBQ emits infrared radiation, which is a form of electromagnetic radiation that transfers heat energy. When this radiation comes into contact with your hand, it adds to the overall sensation of heat. So, it's a combination of both factors that make it hot when you place your hand over a BBQ.

[@jaywhypapiuwu]

@@savadavidovic4732 wow thank you sm

[@Thinchip15]

Thanks, this helped a lot

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I have an report for tomorrow this video helps me to how I'm gonna explain my report

[@funsiez]

take notes and say in own words

[@eyadalshakhshir8604]

Really informative, it helps us in this online learning. Thank you so much.

[@Cognitoedu]

Glad to hear its helping Eyad, thanks! 😊

[@asmaaabilyas9950]

Can't thank enough... Your channel has made physics far more easier to understand...

[@micheicuite4628]

Thiz video n explanation is 💯 perfect for me ..thanxs a lot ! thiz video is short n sweet but the facts discussed was very important to me as if I couldn't learn thiz in class 6 But in class 11 thiz is a sub until discussed n sope I can't learn further without knowing the basem.sope once again thanxs for thiz ..Good luck for thiz channel 💜❤️

[@Cognitoedu]

Thanks Mi Chei, really glad you're enjoying the videos and that they're helping 😊

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THIS REALLY HELPS. I HAVE MY HALF YEAR EXAM TMRW

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You get me out of a jam once more!!!!!!!!!!!!! Thank you again man

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Noice it really helped me as i wanted to explore physics and chemistry

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very helpfull video man good work

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I have an exam tomorrow in this video, can you answer it with some important questions related to this video?

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Walks Into Class Sleeps Goes Home Sees Videos Aces the test

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POV Me after every day of school just wanting to watch some conginto "giggles happily" "mummy i love this"

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I will currently be be going back to school tomorrow. So I am doing revision for my test

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This is sooooo helpful thanks alot for such help

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Science test tomorrow and I learnt more hear than the whoel year

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all of your vids are easy to under stand thanks!

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I learnt a lot and very effectively Thank you a lot my man

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SUBBED!! Please Make More Videos On IGCSE OR GCSE TOPICS ❤❤

[@comfyzone19]

Your video is awesome.I studied this topic from three teachers but I didn't understand it, you made it so easy to learn and understand . However also discuss Thermal conductivity depends on: Cross sectional area Leanght of solid Temperature differences between ends ,Also discuss convection current in land and sea breeze and gliding

[@themanyouneverknow]

Looking at the comments, it makes me sad that people learn pure knowledge for only tests

[@Pinklemonadeontop]

Imagine learning about this and randomly seeing it on your recommended…. Couldn’t be me-

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OMG couldn't understand for over 2 weeks thx😍 Hi from Aus 🇦🇺

[@Mysteriouscovers]

Thank u sooo much for this vid, u explain better than my tchr 😂😂😂

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THANK YOU SO MUCH YOUR VIDEOS HELP ME ALOT

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Thanks! One video and I remember everything now!❤

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Your video is the best of all

[@Cognitoedu]

Thanks ! we like to think so 👀