GCSE Physics - Momentum Part 1 of 2 - Conservation of Momentum Principle #59

This video covers:
What momentum is
How to calculate the momentum of an object
The idea that momentum is a vector quantity
What 'the conservation of momentum principle' is
A worked example of how you can use the conservation of momentum principle to work out unknown momentum or velocity values
General info:
Suitable for all GCSE and IGCSE courses
See below for whether it is higher or foundation tier for your exam board
See below for whether it is triple or combined for your exam board
Exam board specific info:
AQA - Combined science but higher tier
IGCSE Edexcel - Separate science and higher tier only
Edexcel - Combined science but higher tier
OCR 21st Century - Combined science but higher tier
OCR Gateway - Separate science and higher tier only
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

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Why would anyone ever dislike this masterpiece?! Thanks, T&A!

[@loppol6035]

I disliked it because this isn’t how physics works. Momentum is actually, in truth, how much force is on an object carried with the help of the flat earth, it’s flat shape makes the ball go to the right. I hope this opens your eyes to the truth.

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[@Cognitoedu]

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_3.11. 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

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Back to online learning, my exam is actually cancelled, but I'm still trying to push myself to secure the best grades I can - this lesson is helping me understand momentum better after a confusing fast teams lesson about it the other day, thank you !!

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This is sooo helpful.Yuo made me understand momentum in just 7 minutes,while ma teacher failed to make me understand in an hour and 30 minutes.

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This isn't in my syllabus, and also I'm not in 9th or 10th, this should be waaaay out of my grasp, but you explained it so well...I might even surpass my own class....

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Revising :)

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2hours left

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Me

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[@cali5635]

great video sir however for the shared velocity of the elephant and the car i got 4.2m/s not 4.4m/s

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yeah me too

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yeah i got 4.2 as well, must have been a small error in calcuation.

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[@beastsolver5787]

We can also use the formula m1 x v1 =m2 x v2

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[@radrue]

wouldn't the final velocity for the first example be 4.2 m/s instead of 4.4 m/s ?

[@hellloo8649]

Yes! I got that too. Does anyone know the answer?

[@pheniceyoung9892]

24000÷5700=4.2 that what i got too

[@Tanufistrying]

1 year later and i still have no clue why its 4.4 in the video rather than 4.2

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Thanks Tan Jia Le, glad you enjoyed it 😊

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Only a day to go! 🥳

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[@Pramit_Jx]

it might be too specific for me to ask this but how is the velocity 4.4 instead 4.2 at 3:48, i get there is a chance of like simply rounding it but dont understand how and why?

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Ya he made a mistake, anyway good luck for tomorrow bro :)

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I watched it to review this topic, and this is great!! Even I understood the part I couldn't get before 1:08 If question says 'A goes to right and B goes to left', is one object's velocity should be negative value?

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Yea because when moving to the right it is positive so the opposite side is negative

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we can also say m1v1=m2v1

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do your videos cover the spec for the igcse edexcel coarse because I want to make notes of your videos

[@Cognitoedu]

Hi Armor - we cover the huge majority of igcse material, however there are a couple things we didn’t include so please do check your specification/school text book to make sure you’re aware of those other little bits :) good luck with all your work!

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