Upthrust and Archimedes' Principle - A Level Physics
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- This video explains upthrust in fluids and Archimedes' principle for A Level Physics.
Why do objects float? Here I explain why the upthrust in fluids is equal to the weight of the displaced fluid (Archimedes' principle).
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
OCR A
OCR B
WJEC
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I think this man is single-handedly saving my A level
Thank you!
What grade did u get?
what grade did you get
@@Iugeerungraded💀
U got great pens!
😘😘😘 I wish my teacher could have atleast have 10% of your abilty of explaining things so nicely.
upthrust=buoyancy?
3:00 shouldnt the density be of the fluid instead of the object?
It should
Musks,ye
can you explain to me why weight is not used in this calculation?
i know this is an arbitrary question, but what type of pens do you use? They're so nice!
WHO YOU What type of pen do I use?th-cam.com/video/5599WQd9uUI/w-d-xo.html
Thank u sir.....That really helped me a lot. hats off to u sir
Could you please explain how R=pg(h+x)A - pghA cancels to R=pgxA? I cant make sense of it 😭
You can expand the brackets to make R=pg(h+x)A - pghA equal to R=pghA+pgxA - pghA
The pghA terms cancel leaving pgxA
+A Level Physics Online thank you!
Does the weight of the fluid the body displaces = the weight of the object then?
Do we need to know this for AQA A Level Physics?
+A Level Physics Online,
How are the Physics equations derived, like E=mc2?
Here, how was Archimedes sure that his working was real?
Is upthrust the same as drag because it counters weight in a fluid?
Jerry Mushtaq it's not the same, drag occurs when an object is moving. But upthrust will always act, even if it's stationary.
The area used is cross sectional area not the surface area just a reminder 😊
Why does R = F2 - F1? SHouldn't F2 = F1? :/
F2 is equal to F1.
But we're trying to find the resultant force, which is F2 - F1, and since they are equal the answer will be 0... But what if they weren't equal? Well watch the video and find out.
Are we going to need to learn the derivation for this ??
Lol bit late fam
Are your videos also cover the course for CIE A levels...?
Hi - this is what I have for CIE: www.alevelphysicsonline.com/cie
well, there you have it, 3 years of suffering solved in 3 minutes :'D
thank you.
Is the block on minute 2:00 not moving?
Yes, the resultant force are 0 because the forces are equal yo each other.
can tell me how f=pgha
i am in class 8th i have learnt that f=pa
F=PA,where P=pressure & A=area
but also P=pgh,where p=density of liquid(so called row) ,g=acceleration due to gravity,h= height
F=(P)A
F=(pgh)A
hence.F=pghA
note that P isn't equal to p
@@vikaspradhan2801 Also P isn't "P" (Pee), it's the Greek letter "Row" that looks like a tilted P.
*mind blown gif intensifies*
Can U explain how F2 = pg(h+x)A???? Didn't get that part very well.
+Dj AbdiYare Its essentially adding h. x is just h+h from the surface of the water to the bottom of the block (because you consider the height from both the top and the bottom of the diver to the surface.
So F1 is has a force of H but for F2 to counter it and balance out, it also needs to factor in the for x as the weight of x is also a force going downwards.
Not going to lie you talk way too quickly in your explanations. You don't mind slowing down a bit please?
Mess Around Account rewatch it then
Good thing you can rewind and there's a playback speed option.
i hate examss
Exams hate you, thus balancing out the hatred like two equal forces lmao.
can you explain to me why weight is not used in this calculation?
well basically its because...
+A Level Physics Online,
How are the Physics equations derived, like E=mc2?
Here, how was Archimedes sure that his working was real?