Force, Mass, Acceleration and Newton's Second Law - A Level Physics
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- Опубліковано 5 лют 2025
- This video explains the relationship between force, mass and acceleration as well as the link between them and Newton's Second Law for A Level Physics.
You should remember most of this from GCSE Physics, but it's good to refresh your knowledge. F=ma is a special case of Newton's Second Law provided you have a constant mass and a uniform acceleration, and it used throughout this subject to calculate how objects change their motion when a net force is applied.
Thanks for watching,
Lewis
This video is recommended for anyone studying A Level Physics in the following exam boards:
AQA
CIE
Edexcel
Edexcel IAL
Eduqas
IB
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OCR B
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I feel like all common sense, life experience and imagination has left me since I started physics and that all this stuff would usually be obvious if you just asked a child who was playing with blocks but hearing this being reexplained properly and straight to the point has made the idea seem more refreshing~
you are the best educator in the world
Really good but my stupid ass can't understand because it's hard to get along for me when variables are used instead of numbers HUUGGEE thanks all the way from Dubai, UAE
THANK YOU
This is what I like to call Physics in Simpler Terms
Thank you so much sir
Wait how does mass change i thought it stays the same and weight is the one that changes?
What happens when there is no acceleration but there is a vertical force and you have to find the mass?
Exactly to the point explanation!!
Thank you
Good morning . I would like to ask permission To Use This Video for My Presentation. . Thank You so much
That’s fine
thank you so much. Keep Safe
Pardon me if this is a silly question but I would think that the acceleration of most objects is not constant. Doesn't that make the usefulness of this equation extremely limited?
You are indeed correct; I found many problems with lets persay two forces, two mass, or two acceleration.
So does M=f/a?
My brain learning this in online class: :d
My brain watching this video: :D
Thank you.
Your videos are really great! Where can I see all your videos? Coz in your channel I can't really see everything and have to search topic by topic. Thank you so much!
There is a full list of every video in one place on my website
Thank you!
Thanks so much ery helpful needed it 9th grade is very hard especially the math thanks nice vid u should be a teacher. .__.
Floyd Phillips I still am a teacher!
9th grade
I thought this was learn from 8th grade
thank you so much from Afghanistan ☺
F2F Saberi Which part of Afghanistan? Hope your studies are going my well.
from Kabul but now I live in Turkey
thanks a million
F2F Saberi I was in Musa Qala in 2008. That's why I'm now a teacher because I saw how important education is.
yaaa your right
I know there’s a formula of force and acceleration but there’s a formula for mass in Newton’s second law?
Thank youuu
Thanks bro!
Hello sir i have a question,so if we’re plotting a graph for force and acceleration with a constant mass which one will be the x and y axis??Because based on my research i found both graph shown that Force -y axis and Acceleration-x axis and also graph that show Force as x axis and Acceleration as y axis.When i plot graph using both ways,they shows different gradient.So i am kind of confused which one is the right one. :(
how do i find mass
Can you tell what pen are you using
Is the downward Arrow supposed to be gravity affecting the mass?
Also how bizarre is it that acceleration is meters per second squared. What the hell is a second squared in reality
Linear acceleration would be velocity 2 minus velocity one over the number of seconds in between.
Second squared is basically rise in a force each second, per second.
So, force of gravity is about 9 meters per second squared,
you go 9 meters per second, and each second, you increase the force by 9 meters.
So in 3 seconds it would be, 9 meters in the first second, 18 meters in the next second, and 27 meters in the 3rd second.
Mass doesn't change as it is a constant, inherent property of matter, weight is what decreases as a rocket moves away from earth
Will Herondale Sporech when you are launching of to the space you lose fuel decresed mass then the boosters decresed mass and at the end the whole body of the rocket is lost and only the main module is left soo much less mass then before
That's not really in the context of this video, is it.
Exactly
Him Teaching us
me: "Hey Alexa"
So what is the brand of your pen?
Thanks
Imagine we have an objet,it could be absolutely anything ,And this object has a certain mass,and what we can do is we can maybe aply a force to this object,and ig you aply Force to an object, and theres a net force,the New object Will tent to get faster and it will accelerate and what we can say is that the acceleration is proportional to the size of the force,so bigger force will mean bigger acceleration.Also the acceleration is proportional to one over the mass what that means is if you have something wich is heavier and you aply the sane force to it its not going to accelerate as much as something wich is lighter and we can basically look at this 2 equations here and say that the acceleration is proportional to the force over the mass or we could also write this as force is proportional to mass times acceleration,we can measure our mass in kilograms,our acceleration in meters per second squared and our force in newtons
Any other examples of when you can't use F = ma as mass is changing. Also, for someone falling out of a plane, I'd imagine you can't use it either?
+Joseph Simeon F=ma only applies with a constant acceleration. When you have a parachutist experiencing drag their acceleration is not uniform so it can't be applied for their whole journey. Also as things approach the speed of light their mass increases so F=ma not applicable there.
Woww nicer kip it upp
Lol google answer Me This it doesn't answer the question I need
mass is constant everywhere
You explain really great but i just don't get it._. I'm really bad at understanding things._.
yagurlasian watch it a couple more times and it will eventually sink in
A Level Physics Online thanks!
Wait what? The weight of a space shuttle would decrease as it leaves the atmosphere, but the mass would stay the same.
That's right!
You do lose fuel though, so I guess you do lose mass :)
The whole shuttle and launcher assembly would lose mass as it launches, so its mass would decrease. Once in space its weight would also decrease as its in a (very slightly) weaker gravitational field too.
Ok, cheers for responding so quickly!
Sporech when you are launching of to the space you lose fuel decresed mass then the boosters decresed mass and at the end the whole body of the rocket is lost and only the main module is left soo much less mass then before
Unless you account for fuel (but I think you'd mention that in the video) you confuse mass with weight.
I did not understand 😔
Sir thank you but please talk slow there are some difficulty to understand your language
I'm so confused
Wtf why is this at grade 8