Oxford Mathematician Challenges Physics Teacher to A Level Maths Exam

  Рет қаралды 180,011

Physics Online

Physics Online

Күн бұрын

Пікірлер: 130
@TomRocksMaths
@TomRocksMaths Жыл бұрын
Part 2 where I try some Physics Exam questions now live here: kzbin.info/www/bejne/i6bbeZVue7J-iK8
@TomRocksMaths
@TomRocksMaths Жыл бұрын
Had a lot of fun making this - Part 2 where I try some Physics questions will be on my channel on WEDNESDAY (20/12).
@_dhinarth
@_dhinarth Жыл бұрын
i'm your maths fan!
@leo_omega3736
@leo_omega3736 Жыл бұрын
The crossover we never knew we needed. You helped me with my A-level physics 2 years ago and he’s helped me with Year 1 engineering mathematics last year.. Couple of legends
@MrTrollo2
@MrTrollo2 9 ай бұрын
don't want to be rude, but if you need help for your 1st year core subjects, maybe something else would be more fitting for you? you'll have to solve more complex tasks in the future without being able to rely on such kind of backup.
@AGARVRAWAT
@AGARVRAWAT 9 ай бұрын
exactly i was about to say the same@@MrTrollo2
@alexandrosandreou8585
@alexandrosandreou8585 8 ай бұрын
​@MrTrollo2 engineering is extremely hard it's quite normal especially for engineering to need outside help especially 1st year
@MrTrollo2
@MrTrollo2 8 ай бұрын
@@alexandrosandreou8585 nah, Not really
@OMGLittleB
@OMGLittleB 8 ай бұрын
@@MrTrollo2 Everyone learns at their own pace, and everyone has their learning styles, it could be because of their lecturer or because they attended uni late well after school. Not to be rude, but you being as an engineer is probably not a great fit, these horrible assumptions is a bad tendency in engineering.
@zandbergx9747
@zandbergx9747 Жыл бұрын
Loved to see you bond over love of graphs at the end!
@mikeheyburn9716
@mikeheyburn9716 7 ай бұрын
I'm a maths teacher turned tutor now. The best thing about all these videos is that I can get my students to see how they should be thinking and approaching questions. The toughest job is always getting them to stop thinking like kids, always expecting questions should be like using a mobile phone app. Life isn't just "press a button, there it is." Nice one lads. You help my students a lot.
@KYZ__1
@KYZ__1 Жыл бұрын
As a GCSE student who watched some of this video, I found it very interesting how much you were able to surmise in these mechanics problems from good physics knowledge, and the problem solving skills you used. Looking forward to the video of Tom getting challenged!
@nyk32377
@nyk32377 11 ай бұрын
In the second question part b it would be easier to look at the Impulse (change of momentum) and just solve the integral with respect to the i vector (west/east movement). integral(-8+4t) = 0 gives you a t = 4 meaning the velocity vector in the i direction is 0 at t = 4.
@noyou7891
@noyou7891 Жыл бұрын
Loved this video! Such a fun watch!
@ZantierTasa
@ZantierTasa 6 ай бұрын
53:44 4.(c) They give you hints with the previous parts, but it isn't a problem to solve completely algebraically. Like Tom pointed out, with absolutes, you just split it into 2 cases. For the case x - 1 >= 0 (or equivalently x >= 1), you end up with a quadratic with no real roots (b^2 - 4ac < 0). For the case x - 1 < 0, you get x = 3 or x = -2 (57:53), but x = 3 contradicts that x - 1 < 0, so is not a solution. Hence x = -2
@frogandspanner
@frogandspanner 8 ай бұрын
55:00 How refreshing to watch a maths video where "-6" is verbalised as "minus six", rather than the 'Merkin "negative six".
@haiderlatif1523
@haiderlatif1523 Жыл бұрын
I’m not even doing A-levels anymore but I still watch you videos😂
@christianmoran3272
@christianmoran3272 Жыл бұрын
Same here!
@liamnicholas97
@liamnicholas97 11 ай бұрын
The highlight was certainly when "what's the real world application of this" was asked 😂😂 the response was perfect 🎱🌬️🌬️
@TheRealSith
@TheRealSith 8 ай бұрын
He looks like he is stuck in 2009 eternally
@corners1733
@corners1733 Жыл бұрын
Two legends in one video
@matthewmcbrearty6020
@matthewmcbrearty6020 Жыл бұрын
The greatest crossover event in history cannot wait !
@Dalroc
@Dalroc 8 ай бұрын
Calculate time to peak height: v = at => t1 = v/a. v = 25 * sin(15) m/s a = 10 m/s^2 t1 = 2.5 * sin(15) s Use half angle rule for sin(30). Double this time to find the time to return to the initial height. Next find the time to go 4 m down. d = vt + at^2 /2 2d = 2vt + at^2 2d/a = 2vt/a + t^2
@RyzaYT
@RyzaYT 8 ай бұрын
why cant you use the equations im so confused?
@Wksfr
@Wksfr 11 ай бұрын
These questions are as much physics as applied maths. I would like to see the physics chap challenged him to a few harder pure maths questions
@antonioalexandercastro3520
@antonioalexandercastro3520 6 ай бұрын
My thoughts too.
@russellmurphy1
@russellmurphy1 11 ай бұрын
I think I must be the oldest watching this: I did physics A-level in 1978!! We learnt, Should old Harry, Catch a herring, Trawling off Alaska
@davidc4408
@davidc4408 11 ай бұрын
I did 20 years after that in 98
@franklinemix8048
@franklinemix8048 8 ай бұрын
Wow, in 2013 we just say SOH CAH TOA😂
@cfgman1
@cfgman1 8 ай бұрын
1975 Acton Tech - We used Some People Have Curly Brown Hair Till Partly Bald. Love Physics and Applied Maths
@Near_edits
@Near_edits 15 күн бұрын
@@franklinemix8048 same in 2023
@iTeerRex
@iTeerRex Жыл бұрын
Came here from Tom’s channel. Hey everybody. One point of grievance ;) In science you don’t pick and chose the significant figures, it depends on the sig fig’s of the number you start with. Come on you guys.
@PhysicsOnline
@PhysicsOnline Жыл бұрын
This was something that really stood out when we did these papers - how the approach in A Level Maths and Physics is so different.
@hamzaamine828
@hamzaamine828 Жыл бұрын
As a physics student on my last year of bachelor degree I would've solved the first problem the same way Tom explained
@PhysicsOnline
@PhysicsOnline Жыл бұрын
I agree his way was much better
@grantsutherland6798
@grantsutherland6798 8 ай бұрын
Great stuff - well after my school days I wondered why the hell those kinematic equations weren't derived by first principles in a maths class? Also when at university doing Algebra and vector geometry we utilised imaginary parts which is actually way better than using trig when things get knarly (numbers needing to be expanded to a zillion DP) when angles become extremely small or close to 90deg (infinity): I then went to surveying classes which were hot on trig not the vector geometry where life could have been a whole lot more simple, especially when computers were coming into their own. The integration of more maths in physics would be a welcome change as there are dozens of ways properly utilised maths can make things easier
@andreapalma2778
@andreapalma2778 7 ай бұрын
I can find the angle that maximize the distance of landing without the use of any derivative or differentiation :)
@lawrencelawsen6824
@lawrencelawsen6824 6 ай бұрын
I love this channel!
@akf2000
@akf2000 10 ай бұрын
😂😂 the look to camera when he said no friction or air resistance
@georgemann-xp3dw
@georgemann-xp3dw Жыл бұрын
This is amazing!
@shakashark6031
@shakashark6031 Жыл бұрын
so excited!
@KYZ__1
@KYZ__1 Жыл бұрын
Merry Christmas, sir! I wanted to take the opportunity to thank you for all the comprehensive resources that you work tirelessly to get out to students, on Physics Online website, KZbin and throughout your books. It really helps me with GCSE Physics, and I think your videos teaching practical concepts (take transformers, for example) have really shown me the importance of physics, which is possibly the main reason why I decided to take this incredible subject forward to A-level and perhaps beyond. Thank you so much for inspiring me and many others ❤ PS. My family gave me V-sign pens for Christmas; I've joined the club!
@PhysicsOnline
@PhysicsOnline Жыл бұрын
Welcome to the V-sign club. Thank you so much for commenting as it’s great to hear when I have helped people. It really is a brilliant subject the more you get into it! Keep working hard - it will be very rewarding for you.
@KYZ__1
@KYZ__1 Жыл бұрын
@@PhysicsOnline Thanks 🙂
@surfguard
@surfguard Жыл бұрын
I have a master's degree in physics. And already my grammar school teacher insisted that in physics there should never be a number without a unit. So it hurts a bit to see Lewis write down for example a speed as just a number without the unit m/s. But that's probably just me ;-)
@PhysicsOnline
@PhysicsOnline Жыл бұрын
I think I just forgot in the excitement of recording the video!
@alecrosema4885
@alecrosema4885 7 ай бұрын
“I like the way that you got around using the quadratic formula” meanwhile from a physics perspective using the quadratic formula would be getting around the physics of the problem
@markmajkowski9545
@markmajkowski9545 8 ай бұрын
Even college basic mechanics Physicists solve this with angle theta velocity v and height differential d and gravity g. Then plug in actuals for arithmetic.
@Rahim103.5
@Rahim103.5 Жыл бұрын
Did not expect this crossover
@kassidydavis5565
@kassidydavis5565 11 ай бұрын
For the second problem a real life senario could be you’re at the airport on the flat escalator thing that you walk on (varying your speed bc you’re busy texting while walking) and the 2kg object is your carryon
@MrTallAndy
@MrTallAndy 11 ай бұрын
My maths teacher was crazy. Sex On Horseback / Can Actually Happen / To Our Amazement - SOH CAH TOA 🤣
@sanjinred
@sanjinred 8 ай бұрын
why not create a simple diff eq
@raunox5938
@raunox5938 Жыл бұрын
it’s strange to see that Tom doesn’t use/know suvat. I’m currently being taught it in A-level Physics, Maths and Further Maths
@jacobharris5894
@jacobharris5894 4 ай бұрын
It's not as weird as it would seem. I majored in physics and in my experience, after my first physics class the kinematic equations rarely showed up again. Partially because we moved onto other fields, besides classical mechanics, but also because we learnt more powerful tools to solve classical mechanics problems and the problems we had to solve became more complicated. Even in physics 1, when you get to energy, the kinematic equations kind of become redundant. Your able to use the conservation of mechanical energy to solve problems that would be much more complicated with the kinematic equations and Newton's laws. Tom didn't even major in physics, he majored in math, so it makes sense to me he wouldn't know it off the top of his head.
@timche1757
@timche1757 7 ай бұрын
The time span from now to studying further math was very funny. I can relate to that and haven’t even obtained my degree so long ago, but I do struggle to remember all of it because of not getting or giving myself the opportunity to keep all that knowledge in my short short term memory bank😂😂😂
@gwendelmarisjz4601
@gwendelmarisjz4601 Жыл бұрын
What’s the device he uses to write on? What is the best one for studying if anybody has a tip?
@PhysicsOnline
@PhysicsOnline Жыл бұрын
For this I was using an iPad with Notability to write on.
@Torqanar5124
@Torqanar5124 9 ай бұрын
Best part is the question was random ya? And i like how he approaches the problem by questioning in his head and explains as well
@PracticeAptitude
@PracticeAptitude Жыл бұрын
I think the way he solved (a) part of projectile is lengthy
@PhysicsOnline
@PhysicsOnline Жыл бұрын
It was - but I was highlight the approach that may be taught in an A Level Physics classroom.
@PracticeAptitude
@PracticeAptitude Жыл бұрын
@@PhysicsOnline no issues Sir , you are doing great 👍 I solved by using:- 2vsin(®)/g + 4/vsin(®)
@michaeledwards2251
@michaeledwards2251 8 ай бұрын
The drag of the golf ball should have been included. A 1d drag equation should suffice.
@coreymonsta7505
@coreymonsta7505 Жыл бұрын
Say “el n”! The goat pronunciation lol
@davidc4408
@davidc4408 11 ай бұрын
Damn feel old. Did a level maths, further marhs and physics in 98
@michaeledwards2251
@michaeledwards2251 8 ай бұрын
1971, in my case.
@DavidDaniel-i7d
@DavidDaniel-i7d 11 ай бұрын
doe that first question you did, why was the velocity negative.
@mathsangler
@mathsangler 11 ай бұрын
Because he chose downwards as positive and set the acceleration due to gravity as positive in that direction.
@sameehgamer8828
@sameehgamer8828 11 ай бұрын
i solved exercise one with 3 ways :- 1) dividing the question into 2 parts part where it reaches from point A to point of maximum height and the other from point of maximum height to point B * note that the maximum height will be = 4 + (distance from point A to Mid point). 2) solve it directly from A to B by getting two equations. 3) solve it by using integration over y-axis -----{ ady = vdv and a=dv/dt where a is negative and vB is negative , yB = - 4m , yA = 0} got time needed and then you can get the horizontal distance vAx = vBx cause this is a projectile motion which means constant velocity on x- axis XA-B = vBx * tA-B
@francisgrizzlysmit4715
@francisgrizzlysmit4715 11 ай бұрын
what is A level BTW, is that higher than O levels, really don't understand the British Education system
@Qweeeeegame
@Qweeeeegame 9 ай бұрын
It is higher than o levels
@sherifffruitfly
@sherifffruitfly 3 ай бұрын
Is it just me or would the initial projectile questions have been much more clearly answered by simply calculating the parabola? And then basically reading off the answers from that.
@jdd2918
@jdd2918 Жыл бұрын
Big up Lewis !!!!
@alf8718
@alf8718 9 ай бұрын
The last question of the first task was not answered correctly! If we don't count in the air resistance the air speed doesn't matter. Period. In all previous parts of the task we ignored the air resistance (and rouded the ground acceleration to 10.0 m/s instead of more accurate 9.81 for that matter which is another reason the ball travelled further). So the air speed is the answer only if we take into account the air resistance!!
@DJsTeLF
@DJsTeLF Жыл бұрын
HOW long have we been running so far pls?
@alexanderbrinkley4332
@alexanderbrinkley4332 6 күн бұрын
What happened to “Oscar had a heap of apples” for sin, cos, and tan?
@beezeta
@beezeta 7 ай бұрын
Shouls use t = 2usin(theta)/g = 1.29 s
@_dhinarth
@_dhinarth Жыл бұрын
i liike you both!
@TheGmr140
@TheGmr140 11 ай бұрын
Good luck 😊
@practicaltheory6604
@practicaltheory6604 Жыл бұрын
At what university do you teach Physics?
@PhysicsOnline
@PhysicsOnline Жыл бұрын
I’m full time self-employed now, writing physics books and making videos.
@davidplanet3919
@davidplanet3919 Жыл бұрын
For Q1 isn’t the trajectory just the quadratic that needs to be solved. A key point is that s = ut + o,5 t^2 works for the whole trajectory with s=-4 even though the ball moves up and then down again.
@PhysicsOnline
@PhysicsOnline Жыл бұрын
It is - but I’d forgotten the quadratic equation!
@dominiquelaurain6427
@dominiquelaurain6427 Жыл бұрын
woooo .... be ready for the challenge ;-)
@dean532
@dean532 Жыл бұрын
Lol but my first approach was the quadratic equation in this case ‘cause when you’re in EE you not often -almost never exposed to SUVAT
@dean532
@dean532 Жыл бұрын
again.
@harshah4383
@harshah4383 9 ай бұрын
How come u dont remember basic integration being an A level physics teacher?
@mikayeel0760
@mikayeel0760 8 ай бұрын
because you don’t need integration in physics and he hasn’t done it since uni 😂
@PooshanHalder
@PooshanHalder 3 ай бұрын
@@mikayeel0760 idk abt high level physics but i regularly require integration while solving physics question.
@christianmoran3272
@christianmoran3272 Жыл бұрын
I loved this collaboration!
@PhysicsOnline
@PhysicsOnline Жыл бұрын
Thank you!
@lesnowguade8208
@lesnowguade8208 Жыл бұрын
you're my fav teacher!!!
@vansf3433
@vansf3433 11 ай бұрын
Teachers of physics must know very well such basic notions of vectors i and j in 2D ,and i, j and k in 3-D. You can't say that you have never used such notions before Although in calculus' notion of indefinite integration, it's mathematically correct to add the constant C to the resultant Integral, it is absurd to have a velocity at rest in physics because you can never ever be both at rest and in motion at the same time. What all human mathematicians always severely lack when manipulating mathematical formulas is logical reasoning I have mentioned many times with examples that you can be mathematically correct, but completely nonsensical in physics, or the real physical world, because there are numerous flaws in human-invented notions of mathematics, which are not aligned with the real physical world
@charliecooper7458
@charliecooper7458 Жыл бұрын
Best youtube crossover since the advent of youtube
@Viraly2289
@Viraly2289 8 ай бұрын
"too easy for 5 marks" Me not understanding not even one part of the question, let alone the equation 😅
@АрктическийЗаяц-л9ы
@АрктическийЗаяц-л9ы Жыл бұрын
is it supposed to be that easy or A just means easy?
@rojka-_-
@rojka-_- Жыл бұрын
thats easy?!
@АрктическийЗаяц-л9ы
@АрктическийЗаяц-л9ы Жыл бұрын
@@rojka-_- that's school program, in worst case 1 semester and these people have been studying math for 10+ years lol, they must be able to solve problems of this level in their heads
@c0r5e
@c0r5e Жыл бұрын
It’s hilarious when a student is expected to solve in 3 minutes and an expert is taking much lomger
@PracticeAptitude
@PracticeAptitude Жыл бұрын
2vsin(®)/g + 4/vsin(®)
@keithmitchellguitarlessons585
@keithmitchellguitarlessons585 7 ай бұрын
I feel so thick!!!
@random_human_1879
@random_human_1879 Жыл бұрын
In a physics paper 1.75 s = 2s 😅damn that's relatable .
@barneycasting8331
@barneycasting8331 Жыл бұрын
Tutoring is a big business in UK!
@francisgrizzlysmit4715
@francisgrizzlysmit4715 11 ай бұрын
blimey must not be a theoretical physicist, hasn't integrated lately wow
@extimez
@extimez 4 ай бұрын
It's funny that a physicist has an issue with g being 10 when pi, 2 and pretty much all constants are equal to 1 (for small values of pi, 2, &c.) 😂
@jensenjs4180
@jensenjs4180 8 ай бұрын
I gonna tell my child that this dude is dantdm😂
@Abhinaytiwari418
@Abhinaytiwari418 Жыл бұрын
Tbh मुझे ये वीडियो काफी पसंद आया ,, मुझे फिजिक्स वैसे भी काफी पसंद है ,, most of question jee mains लेवल का था ,,, इस वीडियो सीरीज को कंटिन्यू रखियेगा ❤, इंडिया से बहुत सारा प्यार🤞
@PhysicsOnline
@PhysicsOnline Жыл бұрын
Thank you!
@prajwalsingh_roxick
@prajwalsingh_roxick Жыл бұрын
give this paper to an Indian high school student preparing for JEE and he would solve this in record time !!
@pikminlord343
@pikminlord343 8 ай бұрын
Such a fun cideo
@zachariahmagallan5738
@zachariahmagallan5738 Жыл бұрын
Maths? Im from America.
@WaelAli-sd8sw
@WaelAli-sd8sw Жыл бұрын
I’m sorry how can you not solve for t? It’s called solving quadratically.
@FarhanShahoriar-t1w
@FarhanShahoriar-t1w Жыл бұрын
Op boss
@mathswithaditya5382
@mathswithaditya5382 9 ай бұрын
In India we can't use calculator😢 in school or exam
@Totan777U
@Totan777U 3 ай бұрын
What!? Which state? I used calculator in exams
@ticksunbs4944
@ticksunbs4944 Жыл бұрын
nobody saw this coming
@ezu8501
@ezu8501 4 ай бұрын
tom is so beautiful
@AITunesUK
@AITunesUK Жыл бұрын
this video made me realise these youtube channels about maths and physics aren't even that bright themselves 💀💀
@PhysicsOnline
@PhysicsOnline Жыл бұрын
Still got a First at uni! But it’s amazing how much you do forget when you’re not practising regularly!
@madman7757
@madman7757 Жыл бұрын
YOOOOOO
@emilscholz9777
@emilscholz9777 11 ай бұрын
In the exam, we have like.. 3 minutes for exercise 1😂🤦‍♂️
@danielhooper502
@danielhooper502 Жыл бұрын
Its like sociology doing politics exam....
@Ruffgaminb29
@Ruffgaminb29 8 ай бұрын
Try alevel further maths caie questions pleaseeeeeee caie baord is way harder the older years etc💀
@iMMORTAL-bn5rv
@iMMORTAL-bn5rv 8 ай бұрын
This is physics not math tf are you smoking
@gamingtips2941
@gamingtips2941 Жыл бұрын
This is 14 year physics in India IT JE 😮😮
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