GCSE Physics - Acceleration #52

This video covers:
What acceleration is
The 2 equations for calculating acceleration
Average and uniform acceleration
Example questions
General info:
Suitable for all GCSE and IGCSE courses
Suitable for higher and foundation tiers
Suitable for triple and combined science
Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - Everything is relevant to your course!
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Everything is relevant to your course!
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

[@solaymanbhuiyan3993]

Cognito and freesciencelesson videos both make topics easy, but Cognito is on another level for quality and info.

[@sakadagoat2864]

But freesciencelessons is still the 🐐 😂no one will ever be better🤣

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[@NazmulHasan-dj5yb]

Free science lessons helps you understand the main base things, then cognito adds in all the extra information you need to know lol

[@TheMuffinMan786]

Shaun is the 🐐 undisputed

[@lujainnnn111]

POV: it’s the night before an exam…

[@AarushSattani]

Lol 😂

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mines in an hour 😂😂

[@chessawilsonschool]

real

[@FS-mc8bx]

Fr

[@thierneylionneveit7545]

Thank you so much for posting these helpful videos for free. This channel really saved my ass during the last physics exam.

[@EclipseSon]

man, barely any comments yo, deserves more views tho.

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Yup...he does!!!

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you seriously deserve more recognition you're videos are the literal definition of amazing!

[@alaa-nt1yk]

i was literally crying over this topic until i watched this vid

[@bigbouncybunda69]

Real

[@Batman.-]

Thank you! Amazing how I can fully understand a topic from a five minute video here, and not understand a thing from 2 hours worth of lesson from school

[@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_3.02. 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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Super usefuI! I have a Science exam tommorow and I am binging your channel

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u deserve more sub cause you are a boss at teaching stuff

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[@creamyonions6491]

this video was so good i am in love with this knowledgable man

[@jav9945]

😏

[@elizaclouds]

Thank you so much for this explanation, I have my physics exam tomorrow and never understood this equation. If it comes up then I can only answer it from this video

[@ondre.j]

i learn so much more in a 5 min video compared to a 1 hour lesson

[@supercoeur100]

Great video! This topic is very confusing so thanks very much!

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[@ayatrahman72]

This channel really helps me 😭

[@wcomsa]

my hero

[@mehradkarimi4877]

that was awesome at least i learned something

[@syedabdullah6178]

Damn excellent vid

[@Qasimodoz]

The letter "S" means displacement and since acceleration is a vector quantity, shouldn't it be displacement instead of distance??

[@Sara-zm1gp]

3:09 but the distance is unknown in the question that this equation was applied to. We were given the final velocity. Does that mean that the second equation is used whenever anything other than time is known?

[@naveensundar4765]

Yup exactly

[@vibes.5470]

Thanks!

[@truestriver6512]

thanks sooo much cant believe i just found ur channel now

[@trqst]

quick question, in the second equation. Why is there a 2 in the beginning if there wasn't any in the first one?

[@SourojaGhosh]

s = ut + 1/2 * at square is not there...

[@FrancescoRogai]

Thank you

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bro sick vid man loved this soooooo leeeennnggggggggggggggg mmmmmmmmmmmmmmmmm

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"This is so helpful! Thanks to you, physics now seems more approachable. :)"

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Hey I follow you guys every subject and they are super easy and cool. Can you plz start a further maths channel too😊

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heyyy, i am not sure wether or not they have a channel for other subjects but they do upload math videos too.

[@bluechronicles459]

Thank you so muchhhh! You helped alot.

[@Liam-zn8zm]

love the video

[@Cognitoedu]

Cheers Liam 🙌

[@XarSir.]

Amazing video

[@raaafn874]

Hi. Your videos are incredibly useful and make me euphoric. My question is that, at 4:50 do you need to know that acceleration for gravity is 9.8m/s squared? please tell me as I am nonplussed

[@nastery440]

i think so, because its just a fact you need to the speed of gravity and a lot of people do

[@ashwaqmunif7700]

if the question doesn't give you a specific acceleration use earths acceleration yes for the best but sometimes exams will give you earths acceleration mostly

[@andrewcampbellsmith1880]

Hi, thanks for the great video. Question please: at 1:42 the calculation of acceleration is 4 m/s 2 - why does the 4 m/s become squared - 4 m/s 2 ? Thanks

[@wonderwhy010]

It’s the unit of acceleration meter per second square

[@MeghanMcgoldrick-p3y]

have a uni exam tm for zoology and never understood this equation, could give you a big fat kiss babes xox

[@WilanderMascrenhas]

I have a doubt as acceleration is m/s squared. Shouldn't it be time x time in the first problem. 20/25....... Because acceleration = displacement/time x time. Sorry I'm new to physics. Any help would be much appreciated

[@yasiinshah9144]

How did you get the result of 49/19.6= 2.5 m?

[@nabiha5942]

umm....... that is simple division bro... dividing 49... not taking squared root.(if thats what confusing u)

[@ashwaqmunif7700]

because 7 squared - 0 is 49 / (earths acceleration * 2 = 19.6) so 49/19.6 = 2.5

[@Successcomesonce]

Can we round of the acceleration of free fall from 9.8m/s ² to 10m/s²

[@Successcomesonce]

@Linda Abdeen dude I got 2 out of 20 now! Thanx btw 😂😂

[@ashwaqmunif7700]

that can change alot but some exams well expect the accurate acceleration

[@KyrianAg]

very helpful i like 😀

[@SamT1N]

thanks for the great video.

[@CutePrincess-tz7ds]

I still didn't get the - part where its negative and I didn't understand why do we multiply also why is m showed with s in the last question .

[@solaymanbhuiyan3993]

Those who dislike these videos are thick-heads who don't want to grasp the main details, and sometimes a bit of extra info; they like freesciencelessons, which always ditches some important info.

[@jesusisdefinitelynotarelig7515]

Be more chill

[@vibes.5470]

hey bro everyone had different opinions mate, no need to be so angry mate.

[@o4711]

@@vibes.5470 mATe

[@solaymanbhuiyan3993]

​@@vibes.5470 ​ Looking back now, I admit what I said was me ranting out overhyped opinions. But, you got to admit, comparing freesciencelessons and Cognito at GCSE standard; is like comparing physics online and science shorts for A-level Physics revision.

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Tysm. Doing extra practicing last minute for a quiz

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ilysm

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cognito is the only reason I survive a day at school

[@Cognitoedu]

Glad you’re finding them useful 🙌

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Oml- third is so asthetic and amazing-

[@glory4979]

thanks sir

[@rusyaidiamir7445]

vey informative

[@panic7703]

Mandem guess what i was driving my rs6 in germany it was so fast that i went faster than the speed of sound and crashed in a pole

[@Markr-Gaming]

3:25 Was what I thought when I used to not know how acceleration is 💀

[@justiceoforiszn5390]

Do we have to memorise the equations tho?

[@luca6384]

No they’re given to you

[@Frogbuo2424]

we all are here cuz of our teachers that teach almost nothing in there whole lifes while cognito can teach generations of physcis in a week

[@llama_meg]

real

[@nimco5922]

Cognito is THE 🐐

[@duazia9737]

Awesome!

[@yiphone1334]

But I have a doubt can anyone clear it? In this formula-> 2as=V2_U2 how did we get 9.8m/s2 as acceleration

[@SweatXD]

see everything in earth accelartes at 9.8 m per second so thats the accelaration and in the formula u have to multiple the accelartion by 2 so he multiplied 9.8 by 2

[@krishverma2110]

so does it mean, any free falling object has an acceleration of 9.8?

[@crispybacon5061]

yes but most exams just say it is 10

[@ashwaqmunif7700]

well because earths gravity 9.8 but it can vary in exams to test your skills

[@mohamedjameel5391]

yo is the formula v2-u2/t=a same as v-u/t

[@nuhaminsolomon-o1d]

what curriculum are you teaching???

[@WhoTreasure]

yeah

[@mayskhoujali3410]

4:16 how and why is it 9?

[@ashwaqmunif7700]

because thats earth acceleration and if exams are saying a object is falling without giving you a specific acceleration it will be set auto to earths acceleration which is 9.8

[@jackthewackman4610]

hello school

[@panic7703]

i got some mk 11 add

[@HAM-re4ji]

4:17 From where you get the 9.8.?

[@kleesbombs]

thats because it is a known fact that free fall on earth is 9.8m/s squared, so u need to memerise this fact (sometimes it is rounded to 10m/s squared but yeah)

[@kaitlynwylds5932]

It's the gravitational force, because the ball is being dropped you need to apply gravity to the ball!

[@n.2525]

Woooow👏👏👏

[@elephantwellyphant6866]

ello peeps in physics lesson rn

[@samstreatfield7369]

hi

[@brewdogydog3140]

hey sam

[@alexandersalas1998]

Where did the 9.8 m/s2 came from?

[@kaitlynwylds5932]

9.8m/s2 is the gravitational force, any object that is falling or dropped has a force of gravity applied, meaning you need to include the acceleration of 9.8m/s2 (gravity)

[@ryantamehzabin4091]

4:55

[@eashafatima9776]

some good stuff

[@ImpactrioYT]

When you have exams tm

[@WhoTreasure]

asdf

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I love physics

[@samstreatfield7369]

Positive (:

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pin and like or gay

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physics

[@safiyaabdalla-hf6xy]

1st Class Maths better