for yall 00:05 Forces can change an object's momentum 00:52 Force required for change in momentum 01:37 Calculating force using change in momentum and time 02:20 Calculating force required to accelerate an object using momentum equation. 03:12 Calculation of final momentum and force using equation 04:05 A sudden decrease in momentum can cause severe injuries 04:48 Safety features in car design 05:30 Objects lose momentum more slowly because they're compressible.
@ek48436
Жыл бұрын
Since this is the last Cognito video I'll ever watch (I have my last two GCSEs tomorrow, physics and geography) I just wanted to say thank you for making such great videos. You've been so great since I made a note of the channel of a video my Year 9 chemistry teacher showed us over two years ago and I honestly don't think I'd be able to cram as well as I have been without these videos to watch. You explain everything so well without over-complicating it and I love the animations, especially the nerve cells in the biology videos. Thank you so much
@h8irai
10 ай бұрын
how did it go?
@Mahmood0419
6 ай бұрын
@@h8iraithese bots don’t respond
@h8irai
6 ай бұрын
@@Mahmood0419 are you sure thats a bot? because if its a bot i doubt they'd comment something like this
@Mahmood0419
6 ай бұрын
@@h8irai I was not saying that , people who write these comments oftenly don’t respond
@ek48436
4 ай бұрын
Hi, sorry guys haven't been on this channel in almost a year, happened to be recommending these videos to Year 11s and felt like checking. Got my 9 and now almost finished AS-Level physics (not as scary as it sounds). Good luck to any current Year 11s! Remember, GCSEs aren't as bad as they feel, I hope you all get through it :)
@dropyourcroissant830
4 жыл бұрын
I literally cannot thank you enough youre the only chance i have at passing my igcses THANK YOU FROM THE BOTTOM OF MY HEART
@anasfarhan8198
2 жыл бұрын
Did you pass? How'd they go?
@maryamzia28
Жыл бұрын
Heyyyy update us!!! What were ur results!?
@dropyourcroissant830
Жыл бұрын
@@maryamzia28 hey guys! i passed with 5A*s and 2 As!!! can you believe i got an A* in physics? xD im so grateful! thanks for asking and thank you @cognito for being such a wonderful teacher, i got accepted into pharmacy in the top uni in my country and im in my second year :)
@maryamzia28
Жыл бұрын
@@dropyourcroissant830 Great to heat that!! You absolutely rock! I'm so happy for you. I've got my IGCSe Examination in a few months. Wish me luck!!
@Islam-x7w
10 ай бұрын
@@dropyourcroissant830physics is so hard for me, pls pls tell me how u got A* in it
@dvrina
Жыл бұрын
hellooo cognito!! honestly just want to thank you guys yet AGAIN for being such a help in my gcse path right now. been watching (and commenting) since year 9 mock exams and this time im revising for my actual gcses!! aiming for all 9s in my actual exams fingers crossed!! have to thank both of you for putting all of this together you’ve helped me so much, im forever grateful!!
@mahrukhnasir1298
Жыл бұрын
I have my olevel gcse exams from the 25 of April too I hope yours go well too also how many are u giving
@shaheerali7382
Жыл бұрын
@@mahrukhnasir1298 bro same mine as well how is your preparation
@randomtimes8061
3 жыл бұрын
Thank you, this is literally the only chanel where I actually liked, shared and subscribed
@Cognitoedu
3 жыл бұрын
Thanks for the support!
@Cognitoedu
2 жыл бұрын
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_3.12. 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
@nishtakasundass6669
4 жыл бұрын
This is an awesome seatbelt to pass physics exams, without getting crashed.
@eeshalkhan9340
2 жыл бұрын
totally!
@BeardBarians
2 жыл бұрын
Yeah the way the infos presented doesn't crumple my brain
@torrie9290
Жыл бұрын
This video gave a helmet on my brain
@vintxge_taetae
9 ай бұрын
@mikamiko2576”you’re joookiiiingg”- Raquel 😭😂
@supertrinigamer
3 жыл бұрын
No idea how to thank you other than saying thanks, because this has saved me. I've been doing online lessons for a while but the explanations I find sometimes are absolutely horrid, but not this. I actually was able to sit through it.
@sammak2461
2 жыл бұрын
got my paper 1 tmrw, aiming for a 9. Ive been using your videos to revise all my sciences, they are amazing thanks so much
@Cognitoedu
2 жыл бұрын
Best of luck!
@chardonnay7495
2 жыл бұрын
how was it
@rehmanahmed7466
Жыл бұрын
How was it JIMMY!!
@Egg.426
2 жыл бұрын
This guy! still replying to comments on a 3 year old video wishing them luck, What a legend!
@DreamingSheep.
11 ай бұрын
This is one of the easiest and most simple tutorials I’ve watched, really helped me with my homework, thanks a lot 😁
@saiamoghasenthilkumar3069
3 жыл бұрын
Thank you so much ! I have my physics exam coming up on Monday this really helped me. I Subscribed !
@Cognitoedu
3 жыл бұрын
Thanks Sai, hope your exam goes well 🤞
@fbr7757
3 жыл бұрын
This is indeed a life saver i cant thank youuu your effort is amazing and plus i just subscribed
@Alisucksdick
Жыл бұрын
can i get aa reply from you?
@Q_TheFun
4 жыл бұрын
will I get a high grade in gcse if these videos is the only thing I revise from?
@Cognitoedu
4 жыл бұрын
Hi Q, that’s a very good question, and the answer is both yes and no. ‘Yes’ because if you remember and *understand* all the information in these videos, you’ll be able to apply the knowledge and work out the answers to the toughest exam questions (and obviously answer the simpler ones). ‘No’ because we don’t cover practicals at the moment, and you’ll need to score highly in those to get a top grade, and also because the hardest exam questions will ask you to generalise principles you’ve learnt to completely new situations. We do our best to help show you how to think through difficult questions, but ultimately, it depends on the individual whether they draw the right connections between different concepts on the day, to get those top marks :) Good luck with all your work 🙌
@Aethelhadas
4 жыл бұрын
Q _TheFun practicing past papers helps tons !!
@Aethelhadas
4 жыл бұрын
Cognito Thanks for the explanation, i’ve been wondering about this for a while
@user-jp3vx9jn6d
Жыл бұрын
U don't even know how many people your helping with these videos. Thank you so much
@leeknow88889
Жыл бұрын
seriously thank you so much for making these videos i literally love you bro.
@razanmalik6183
10 ай бұрын
Thank you so much
@NaBiiii535
4 жыл бұрын
Thank you! You helped me a lot btw I just subscribed!!
@Cognitoedu
4 жыл бұрын
Always good to hear - thank you! 🙌
@OmegaShark_
Жыл бұрын
man your a life saver thanks alot i cant show u how much i appreciate u
@falll7631
3 жыл бұрын
Hi, thank you very much for these videos. It helped me a lot. I know you're uploading GCSE maths videos right now but after you're finished can you start A-level physics et cetera?
@Cognitoedu
3 жыл бұрын
Hi Mai_Ya, glad you're enjoying them, we can't promise anything but we are hoping to start A-Level science after these maths videos 👍
@muhammadpatel5977
4 жыл бұрын
Cognito how many videos of physics are left and will you be doing the triple science chapters next
@Cognitoedu
4 жыл бұрын
Hi Muhammad - yep we’ll be doing the triple stuff! I can’t remember exactly off the top of my head but there’s about 20 left :))
@ayahseveryday7353
3 жыл бұрын
@@Cognitoedu thnx
@knightir4636
3 жыл бұрын
@Cognito thanks
@ferashasan6057
2 жыл бұрын
You're videos are amazing!!!! Thank you so much for helping me understand these topics :)
@Cognitoedu
2 жыл бұрын
Glad you like them! 😊
@ayahseveryday7353
3 жыл бұрын
thank u for ur time and effort u have really helped me and others
@jomanaeldeek6993
3 жыл бұрын
Cannot thank you enough! Keep on posting such videos pls
@mo3tasemsalem344
2 жыл бұрын
The best physics channel ever you helped me alot🤍
@Alisucksdick
Жыл бұрын
can i get a reply?????????????????
@winny02
2 жыл бұрын
i owe you a big thanks
@iffatduaashakil763
2 жыл бұрын
This is so good I literally got 98 percent on sessionals of physics
@Cognitoedu
2 жыл бұрын
Well done Iffat, that's great!
@janarslan5310
10 ай бұрын
thanks for the help
@alynafarooq4912
Жыл бұрын
cant explain how helpfull are these!!😊
@yangdup9-b68
2 жыл бұрын
thank u so much your video's are very clear and easy to undersatnd helping me for igcses
@Cognitoedu
2 жыл бұрын
Glad to hear you think so 😊
@somerandoinoceania
Ай бұрын
5:53 word choice on peak 😮💨🤌🏽
@jineshthomas-cr6sl
Жыл бұрын
this is really helping me a lot. thank you so much
@foggieststorm1890
2 жыл бұрын
You are a life saver ✨ time to cram before tomorrow 🥰
@user-ox5qs1he1o
7 ай бұрын
I had a question if we stop a cycle or any moving object what will be the formula? Will it be mv-mu/t.? In our textbook formula for this case is mu- mv/ t. As the final velocity is 0.
@unfortunatemystery1778
Жыл бұрын
Derivation of the formula Of force F=ma As a = (v-u/t) F= m(v-u)/t M(v-u) is change in momentum
@shradha-xp8mi
5 ай бұрын
Isnt ρ, rho used for density and small letter p used to represent momentum?
@sonicstorm4354
2 жыл бұрын
Finally someone educated thank you
@ShAkOsH5
9 ай бұрын
THANK U FOR THE GREAT VID FOR PHYSICS LOVE YOU
@taniodusina4389
3 жыл бұрын
how do you know to use this formula. we could have used F = m times a
@The_arab_cat
Жыл бұрын
just THANK YOU
@abdvlogz2668
2 жыл бұрын
Mans a lifesaver
@habibahany432
3 жыл бұрын
Thank uuu . Really appreciate the hard work!!
@kamilakurbanova2156
Жыл бұрын
Do I need to know how to calculate the change in momentum for the AQA combined science syllabus?
@ace_da_base
3 ай бұрын
cognito gang is the ultimate goat
@ProfDrMrPengalangTheThird
3 ай бұрын
Cognito actually the goat, and science shorts to js summarise
@msalmanmurtaza5476
4 жыл бұрын
I really liked your vedio it was so beneficial and satistifying.
@patty_d.4773
11 ай бұрын
Thank you!
@user-be1fx3tb8z
3 жыл бұрын
Tysm!, It helped alot
@Cognitoedu
3 жыл бұрын
Great to hear it helped 👍
@InxenXionalliving
4 жыл бұрын
Hi, i have a question... in the first example the mass is not considered when calculating the net force...was that a mistake or am i missing something?
@aboodtube3969
3 жыл бұрын
i think im pretty late but heres what i think. the formula he is using requires momentum, but not mass. we do need to know the mass to find the momentum tho, so if you already know the momentum then you dont need to know the mass but if you dont know the momentum then you do need it
@laethferas4214
Жыл бұрын
@@aboodtube3969 *im pretty late*
@jinethweragama1218
2 жыл бұрын
for the change in momentum question, cant you work out the change in velocity over time(acceleration)and the use F=ma to find the force applied??
@sellosenekane9750
Жыл бұрын
That formula is derived from that one
@sellosenekane9750
Жыл бұрын
So yes it can be used
@sellosenekane9750
Жыл бұрын
So yes it can be used
@gaiacooper5
3 жыл бұрын
Isn't F=(mv-mu)/t the same as the v-u/t equation?
@neldino1251
2 жыл бұрын
no because the second equation is to do with acceleration rather than change in momentum momentum has mass involved as well
@gaiacooper5
2 жыл бұрын
@@neldino1251ah, thanks.
@philipbrady9358
11 ай бұрын
excellent
@aniqaarisha9180
5 ай бұрын
4:30
@EzekielJonathanPhiri
7 ай бұрын
this is great and all but i just realised how many huns I fumbled. it’s bad😅
@joebastianich3410
3 жыл бұрын
Walrus
@KermitTh3Fr0g
3 жыл бұрын
wagwan
@line4861
3 жыл бұрын
Wagwan
@ena.5364
2 жыл бұрын
wagwan
@hixxing
3 жыл бұрын
Wanna give u a big kiss for this
@shomik99
3 жыл бұрын
do it
@ayo123
3 жыл бұрын
gay niggas deya
@zhaotinghu8951
2 жыл бұрын
Lol my school has IGCSE system and I'm preparing for a test
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