GCSE Physics - Conduction, Convection and Radiation #5

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  • Опубліковано 2 січ 2025

КОМЕНТАРІ • 812

  • @Cognitoedu
    @Cognitoedu  5 років тому +479

    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
      @odacove9823 4 роки тому +9

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

    • @olafusiolamide27
      @olafusiolamide27 4 роки тому +4

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

    • @praveenaram5582
      @praveenaram5582 4 роки тому +2

      @@odacove9823 subscribe my channelua-cam.com/channels/m-9nyzh4zxR7DdjkuVWIdw.html

    • @PriyaSingh-yc3is
      @PriyaSingh-yc3is 4 роки тому +2

      Oh come on its okay 👌

    • @OmniPlayz_TTV
      @OmniPlayz_TTV 4 роки тому +1

      @@odacove9823 convection as it takes place with fluids

  • @fel69420
    @fel69420 4 роки тому +768

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

  • @SimplyBellaGcha
    @SimplyBellaGcha 2 місяці тому +239

    Anyone watching this in 2024 for exams? 😂

  • @Cognitoedu
    @Cognitoedu  3 роки тому +7

    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
      @Jewel-u4t 3 місяці тому

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

    • @Jewel-u4t
      @Jewel-u4t 3 місяці тому

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

  • @justazek
    @justazek 5 років тому +450

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

    • @Cognitoedu
      @Cognitoedu  5 років тому +60

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

    • @naysoehtoo2122
      @naysoehtoo2122 4 роки тому +5

      Azek Clapzz did you do good on the test?

    • @justazek
      @justazek 4 роки тому +10

      @abdullah iftikhar Okay, you can stop bragging.

    • @justazek
      @justazek 4 роки тому +13

      @abdullah iftikhar Its "video" btw not vidio.

    • @justazek
      @justazek 4 роки тому +8

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

  • @luigiangelil4546
    @luigiangelil4546 4 роки тому +240

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

    • @itssayam776
      @itssayam776 3 роки тому +2

      Same here

    • @millier7625
      @millier7625 2 роки тому +1

      same here xx

    • @R4YPixels
      @R4YPixels Рік тому +2

      an entire month for me

    • @yaaziin
      @yaaziin Рік тому

      cognito is worst course that i see never in my life science hazard always is best lets go sceience with hazard

    • @abdulhaadi1585
      @abdulhaadi1585 Рік тому +1

      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

  • @Natalie-cg7cp
    @Natalie-cg7cp Рік тому +55

    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.

  • @VIVIDPERSONEL
    @VIVIDPERSONEL 2 місяці тому +20

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

  • @Star_BaconXD
    @Star_BaconXD Рік тому +6

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

  • @mauvieyy9083
    @mauvieyy9083 3 роки тому +63

    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
    @sopstr192 2 роки тому +17

    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
      @Cognitoedu  2 роки тому +5

      Great to hear you found it useful - thanks!

  • @BeeSwarmGrinder-z2j
    @BeeSwarmGrinder-z2j 2 місяці тому +4

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

  • @qomma9565
    @qomma9565 4 роки тому +258

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

  • @abnormal3720
    @abnormal3720 3 роки тому +30

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

  • @byexx
    @byexx 2 місяці тому +4

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

    • @blinkiee000
      @blinkiee000 18 днів тому

      Jokes on you I have p1,p2 and p4😭😭🙏

  • @diyanarsani6862
    @diyanarsani6862 4 роки тому +24

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

  • @charlieruffy3374
    @charlieruffy3374 4 роки тому +16

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

  • @osamasadigh5085
    @osamasadigh5085 Рік тому +5

    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.

  • @melonplayzroblox1266
    @melonplayzroblox1266 4 місяці тому +2

    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!!! :)

  • @JanetKanungwe
    @JanetKanungwe 2 місяці тому +9

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

  • @ajibeji02
    @ajibeji02 2 місяці тому +2

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

  • @chloelondon4232
    @chloelondon4232 Рік тому +19

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

  • @mabzland1593
    @mabzland1593 4 роки тому +25

    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.
      @spndons. 3 роки тому

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

    • @sanunstudios
      @sanunstudios 3 роки тому +5

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

    • @spndons.
      @spndons. 3 роки тому

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

    • @saz8610
      @saz8610 3 роки тому +4

      @@spndons. at least they don’t use XD every two seconds go get a life

    • @spndons.
      @spndons. 3 роки тому

      @@saz8610 Do you even know the freaking meaning of "Xd"... And BTW pls don't disturb me so much I'm on a good mood, burh, I have a nice life, that has nothing but enjoyment. I don't even care about your cringe life bruhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

  • @nuraemarufa7109
    @nuraemarufa7109 8 місяців тому +3

    Better explanation than my 40 year old physics teacher

  • @owenbell
    @owenbell 4 роки тому +111

    Who else is watching this from your teacher cuz corona?

  • @studyvib3s_
    @studyvib3s_ 4 місяці тому +1

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

  • @sinaanbilal
    @sinaanbilal 9 місяців тому +2

    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😊

  • @aditijain3516
    @aditijain3516 2 роки тому +4

    the best revision site..

  • @paintingwithhadiyamoeed9057
    @paintingwithhadiyamoeed9057 4 роки тому +1

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

  • @pretzulduck-q3d
    @pretzulduck-q3d 8 місяців тому +1

    this guy literally made me pass my exam

  • @mahirpatel9832
    @mahirpatel9832 Рік тому +2

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

  • @rnkk8947
    @rnkk8947 2 роки тому +1

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

  • @mbs1137
    @mbs1137 3 роки тому +1

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

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Glad we could help MBS11! 👍

  • @facts3427
    @facts3427 Рік тому +2

    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.

  • @Jewel-u4t
    @Jewel-u4t 3 місяці тому

    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!

  • @diyanarsani6862
    @diyanarsani6862 4 роки тому +5

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

  • @moon_rocks1870
    @moon_rocks1870 3 роки тому

    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

  • @thanansayanbalachandran6081
    @thanansayanbalachandran6081 4 роки тому

    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.

  • @rachonsthegamer198
    @rachonsthegamer198 7 місяців тому +1

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

  • @ev3lynm629
    @ev3lynm629 4 роки тому +37

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

  • @misakoozz
    @misakoozz 11 місяців тому

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

  • @RealVesper
    @RealVesper 4 роки тому +279

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

  • @sulemanalimehkri7497
    @sulemanalimehkri7497 Рік тому

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

  • @Ros4_xX
    @Ros4_xX 25 днів тому

    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

  • @ArtventureAnn
    @ArtventureAnn 7 місяців тому +1

    Best teaching.. 😊

  • @marufhossain6697
    @marufhossain6697 3 роки тому +2

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

  • @glenh5719
    @glenh5719 4 роки тому +7

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

  • @Jimmy-dx3zl
    @Jimmy-dx3zl 4 роки тому +5

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

  • @TheVoidmaster_infinity
    @TheVoidmaster_infinity 5 місяців тому

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

  • @misakichan5022
    @misakichan5022 4 роки тому +1

    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!

  • @atoz9254
    @atoz9254 3 роки тому +8

    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.

  • @fernsfl
    @fernsfl Рік тому

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

  • @user-wd4ev6qt2n
    @user-wd4ev6qt2n 4 роки тому +1

    I am watching this from school, it is helpful

  • @kiaravxv
    @kiaravxv Рік тому +6

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

  • @zoryxz9066
    @zoryxz9066 4 роки тому +28

    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?

  • @user-gi3yr1gl7j
    @user-gi3yr1gl7j 4 роки тому +2

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

  • @rehya8810
    @rehya8810 2 роки тому +5

    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
      @Cognitoedu  2 роки тому +3

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

  • @dametrosd6593
    @dametrosd6593 4 роки тому +7

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

  • @amelia-ru4pt
    @amelia-ru4pt 3 роки тому +1

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

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Well done Amelia, glad we could help 😊

  • @sunflxwerrr
    @sunflxwerrr 11 місяців тому

    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

  • @themanyouneverknow
    @themanyouneverknow 2 місяці тому +3

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

  • @ranaeshanali1651
    @ranaeshanali1651 2 роки тому

    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

  • @Xsplore
    @Xsplore 4 роки тому +2

    love your animations they give a more clearer explination thx

    • @Cognitoedu
      @Cognitoedu  4 роки тому

      Thanks, good to hear they helped :)

  • @Comedy-d2p
    @Comedy-d2p 2 місяці тому +1

    Great video greg!

  • @shilohtichawangana1715
    @shilohtichawangana1715 Місяць тому +1

    Ur a life saver❤

  • @Lasergirl17
    @Lasergirl17 11 місяців тому +1

    Ty so much I needed this for my pop quiz😊

  • @paperplanes9960
    @paperplanes9960 4 роки тому +9

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

  • @asmaaabilyas9950
    @asmaaabilyas9950 4 роки тому +1

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

  • @icraveacademicvalidation
    @icraveacademicvalidation Рік тому

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

  • @Mysteriouscovers
    @Mysteriouscovers 6 місяців тому +1

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

  • @deeryyyyy707
    @deeryyyyy707 5 років тому +5

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

  • @timorlov3000
    @timorlov3000 4 роки тому +6

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

  • @sarmpornnapa3303
    @sarmpornnapa3303 3 роки тому +1

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

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Thank you for watching! 😊

  • @jaywhypapiuwu
    @jaywhypapiuwu 10 місяців тому +1

    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
      @savadavidovic4732 10 місяців тому +1

      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
      @jaywhypapiuwu 10 місяців тому

      @@savadavidovic4732 wow thank you sm

    • @Thinchip15
      @Thinchip15 3 місяці тому

      Thanks, this helped a lot

  • @OVOTROY
    @OVOTROY 3 роки тому

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

  • @Rolonoaleeharam
    @Rolonoaleeharam 3 роки тому

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

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Glad we could help, best of luck 🤞

  • @villangaming6489
    @villangaming6489 2 роки тому +1

    very helpfull video man good work

  • @iamthestrongest007
    @iamthestrongest007 2 роки тому

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

  • @benjones899
    @benjones899 4 роки тому +4

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

  • @comfyzone19
    @comfyzone19 Рік тому

    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

  • @eyadalshakhshir8604
    @eyadalshakhshir8604 3 роки тому +1

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

    • @Cognitoedu
      @Cognitoedu  3 роки тому +1

      Glad to hear its helping Eyad, thanks! 😊

  • @shahjeelani2691
    @shahjeelani2691 Рік тому

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

  • @juliusreyes868
    @juliusreyes868 5 років тому +7

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

    • @funsiez
      @funsiez 5 років тому

      take notes and say in own words

  • @micheicuite4628
    @micheicuite4628 3 роки тому +1

    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
      @Cognitoedu  3 роки тому

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

  • @brey15
    @brey15 4 роки тому +1

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

  • @mweowsnrorthop9030
    @mweowsnrorthop9030 2 роки тому +1

    THANK YOU SO MUCH YOUR VIDEOS HELP ME ALOT

  • @Daniel-kv4np
    @Daniel-kv4np 5 років тому +5

    Great Video! Keep it up!

  • @wickedeye4170
    @wickedeye4170 4 роки тому

    THIS REALLY HELPS. I HAVE MY HALF YEAR EXAM TMRW

  • @ajamil12
    @ajamil12 4 роки тому +1

    This is sooooo helpful thanks alot for such help

  • @Pinklemonadeontop
    @Pinklemonadeontop 2 роки тому +1

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

  • @qiaoting4778
    @qiaoting4778 Рік тому

    Thanks! One video and I remember everything now!❤

  • @andrewmonson9872
    @andrewmonson9872 2 роки тому

    all of your vids are easy to under stand thanks!

  • @Shabanacooks786
    @Shabanacooks786 5 років тому +4

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

  • @ahmm5734
    @ahmm5734 28 днів тому +3

    we got revision before GTA 6 😭😭🙏🙏

    • @BedwarHacks
      @BedwarHacks 28 днів тому +1

      we got bro liking his own comment before GTA 6 😭😭😭😭😭😭🙏🙏🙏🙏🙏🙏

  • @Pitlagangadhar1234
    @Pitlagangadhar1234 Місяць тому +2

    I have science exam about this chapter (flow of heat)

  • @nelliechitakasha4499
    @nelliechitakasha4499 3 роки тому

    Cognito u are the best keep it up

  • @ChristenMatthew
    @ChristenMatthew 8 місяців тому +1

    this vid made me pass a test just by watching

  • @kaelumgill9287
    @kaelumgill9287 4 роки тому

    Brilliant video had test and aced it thx to video 👍

  • @ABRS-em7ln
    @ABRS-em7ln 8 місяців тому +1

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

  • @dwayneashton9448
    @dwayneashton9448 3 роки тому

    FINALLY!!
    AFTER WATCHING 5 VIDEOS I FOUND ONE THAT I UDERSTAND!!