Literally explained it better in 20 minutes than any teacher at my school ever has in 2 years. Somebody give this man a medal.👏👏
@ahnafulhoque12423 жыл бұрын
🥇
@riotfn57872 жыл бұрын
just no
@fly.1 Жыл бұрын
or you just like paying attention when youre alone
@maalikserebryakov Жыл бұрын
literally took me 2 years to understand this ngl
@Elitea204 жыл бұрын
How uncertain I was on this topic: ±100000000 My uncertainty after watching this video: ±0.0001
@raahimhadi49054 жыл бұрын
lol
@stevenmate70036 жыл бұрын
great video mate, helped a tonne + or - 1kg
@ScienceShorts6 жыл бұрын
IMPERIAL?!?! *triggered* Edit: he changed it from ton. I aint an eejit.
@999Tutorialz6 жыл бұрын
a tonne is the metric unit, a ton is the imperial
@edgarevanmendez88296 жыл бұрын
I see what you did there :) well said :) you're funny, smart comic I see..
@NoCokeOnlyIce6 жыл бұрын
That's some great humor.
@Mirandaxuu6 жыл бұрын
me 2@@edgarevanmendez8829
@amadif17933 жыл бұрын
I was so confused after doing uncertainty in class but this video cleared it all up. Many thanks, just started A level physics and I think I'l be back to this channel a lot over the next 2 years...
@simplypotet55612 жыл бұрын
😭 I wish I was back in y12 dying rn in y13
@fearfresh19732 жыл бұрын
@@simplypotet5561 nah fr
@phase0400 Жыл бұрын
A levels have arrived on your doorstep now...
@amadif1793 Жыл бұрын
@@phase0400 yup, I did paper 1 a week ago, paper 2 coming up soon…
@amadif1793 Жыл бұрын
Update: 2 years later and I'm back to this video to revise uncertainties for paper 3
@rintonmweemba8832 жыл бұрын
This video will never get old..... it's relevance will keep resurfacing timely.... lucky are those who view it while they need to.
@dkappy Жыл бұрын
Hey, thanks for all the videos you make on physics, it really helps me consolidate my knowledge coming up to the AS exams, and I also like your sense of humour. It always makes me chuckle hearing you complain about how rubbish a past paper question is or whatnot
@DanielKim-dk5im3 жыл бұрын
wow this is what I actually wanted. A lot of textbooks didn't coverup different types of uncertainty explicitly. Thank you so much
@YazhShah6 жыл бұрын
My brain hurts
@diyapatel32863 жыл бұрын
mine too, good night
@YazhShah3 жыл бұрын
@@diyapatel3286 Good luck with your exams ; )
@diyapatel32863 жыл бұрын
@@YazhShah thank you :))
@_StarBoyfl2 жыл бұрын
😂😂
@AJ112 Жыл бұрын
Mine 3
@evilvoldemort1235 жыл бұрын
Some digital device reading can have zero errors if they aren't zeroed(calibrated). Eg. There's a zero button in digital scales, but if you press it when there's a weight on it, it will use the weight as the starting point of the reading instead of 0, hence zero error.
@vhaalgorn4 жыл бұрын
This was so satisfying to learn for some reason, it just makes sense!
@shteam72945 жыл бұрын
when I become a Billionaire I will donate 1 Million ± 10% money to your channel :)
@ScienceShorts5 жыл бұрын
I'd be more than happy with 900k.
@shteam72945 жыл бұрын
🔜🔛🔝 #scienceshorts❤️
@banjawcool37485 жыл бұрын
I just become a professor in uncertainty in 21 minutes
@jordanaraujo8374 Жыл бұрын
Legit watching this the night before let’s go
@legittheral67426 жыл бұрын
Wow this was long but extremely useful. Thanks alot, I finally get it.
@stanpeter80985 жыл бұрын
Can you be my physics teacher? xD Thanks! You helped a lot :)
@lindamercan36744 жыл бұрын
Easy explanations that clarify all the intricacies in a difficult topic. Thanks so much.
@taykeith37953 жыл бұрын
I’ve got my final physics paper today. Big thank you for all the videos you’ve posted
@rayyansheikh5305 Жыл бұрын
2 yrs later and it's my final physics paper today XD. This guy's a savior
@shiny29252 жыл бұрын
MY TEACHER SPENT 4 HOURS TEACHING THIS AND THIS VID MADE ME UNDERSTAND IN 20 MINS TYSMMM KING
@OWTShark2 жыл бұрын
You made me understand it in 2 minutes when it takes school a year and still doesn't make you understand the subject well, thank you 🙏.
@turjofardeen2924 жыл бұрын
When ever a new character is introduced Science shorts guy: Hey is that Bob?
@theMCSPproject6 жыл бұрын
15:36 was that a DJ Khaled meme ffs :D
@theguy13575 жыл бұрын
bruhhh LOOOL
@krastudios72022 жыл бұрын
Relying on you man.
@7p7m72 жыл бұрын
Hahahahah swear
@Taianii6 жыл бұрын
thank you, best video I've seen explaining uncertainties which I'll defiantly remember in my exam tomorrow.
@amadif17932 жыл бұрын
How did your exam go?
@daberechiokeke96885 жыл бұрын
thankyou for this video. Because of you i got an A in my physics test. I really appreciate the video. I'm looking forward to more videos
@huglifert6 жыл бұрын
this was amazingly explained, thank you so much!
@Eren-gc9ne5 жыл бұрын
You sound like Chris Hemsworth
@sz.08zz20 күн бұрын
He just doesnt tho now does he
@dodadoda59662 жыл бұрын
1. Nice vascularity sir. 2. I'm 100% certain I am acing this topic after your clear explanation, I'm grateful.
@HayleyMackenzie-h4e11 ай бұрын
thank you for this came across a question in a past paper and thoroughly helped me answer it, thank you.
@shayan11312 жыл бұрын
ur my hero. literally im in yr13 and I never understood any of this and you changed it.
@harrietjones14095 жыл бұрын
Good luck everyone for tomorrow!
@supamanvag5 жыл бұрын
Same to you!
@wayneamelie2785 жыл бұрын
I like we all came here right before the exams, anyways good luck mate
@flypig15 жыл бұрын
Andddd im back for paper 2 as it didnt show in p1 😂😂
@harrietjones14095 жыл бұрын
Stan P good luck! 😝
@flypig15 жыл бұрын
@@harrietjones1409 cheers bruv. What did you think about p1?
@FadedSky2026 Жыл бұрын
In the Assumed Uncertainty part of the video. I believe you gave the Resolution. For example you stated the voltage as 5.27V the resolution of the reading is the smallest possible value which is 0.01V. The uncertainty will be 0.01V/2 half the resolution. Correct me if I’m wrong sir? Is this something unique to Edexcel A level exam board since this is what the MS I have seen are doing.🤔
@Xarishher5 ай бұрын
For the EDEXCEL spec however, they consider Micrometres and Vernier Callipers to have 1/2 * resolution.
@Beth-lw5cu5 жыл бұрын
I have done physics for about 5 years and still NO IDEA how to use a micrometer, weird pieces of equipment
@kanthihirimuthugoda37325 жыл бұрын
It's not a weird equipment, u are just dumb
@tahsinrahman16685 жыл бұрын
'Tis a true "BRUH" moment
@Babydriver5424 жыл бұрын
lol dumbass
@Babydriver5424 жыл бұрын
Haha ha ha
@oyasumidoge3 жыл бұрын
@@kanthihirimuthugoda3732 BASED
@EdgeRulezs6 жыл бұрын
So when matching precision of our calculation to the recorded values, do we use the least precise sig fig or dp? I hope that made sense... Also, thank you for saving my life with this video!
@MFESPFTWKF2 жыл бұрын
I feel like there are discrepancies if you don't know the insruments precision why is the uncertainty + or - 1 x lowest sig.fig and not 0.5 x lowest sig.fig since the measurement might be calibrated
@MythPro2 жыл бұрын
U r a legend, Now thats for certain
@ghgjftythnhcfghdty4 жыл бұрын
I believe the initial example is wrong; the resolution of the scale markings provide a guide, not a hard limit, to the precision of the reading/measurement available from a given metrological instrument. For example, if I had a metre stick with no markings, I could still take a reading to within half a metre (or a third or a quarter). Similar applies to the example in the video of a reading which can be seen to fall closer to 21.5 than either 20.0 or 21.0. So a reading of 21.5 degrees +/_ 0.5 degree is reasonable and correct (not 21 +/_ 0.5). No? Just feedback and comment, thanks for the vids, they are awesome.
@hashimzafar48872 жыл бұрын
Final physics paper on 16 June 2022. Appreciate the last minute revision.👍
@chamanarasultana77782 жыл бұрын
what was your grade?
@hashimzafar48872 жыл бұрын
@@chamanarasultana7778 c should’ve remarked but hit first choice uni
@vasuhardeo14183 жыл бұрын
that info about the gradient and best fit was pretty cool.
@Abcdefg473634 ай бұрын
Thank you so much for this, exams in 2 days really appreciate it 🙏
@Handren-Ibrahim Жыл бұрын
I love this video, thank you mate.
@shalanianjala91406 жыл бұрын
Great explanation and so useful...
@castro27392 жыл бұрын
This is the perfect video for London ALs bro Thank you so much👍
@tamircohen15126 жыл бұрын
Thanks so much sir! I'm doing A Level physics and uncertainties made no sense but after you explained it I fully understand it.
@nwarrier23385 ай бұрын
Absolute legend, thank you so much (I think I finally understand uncertainties now)
@sikronicbeast1098 Жыл бұрын
Bros explains it so well and clearly aswell and this is 5yrs after
@aaryan5675 жыл бұрын
who else got AQA paper 3 tmo loool
@hi440985 жыл бұрын
Boi u know u knowww. Hahaha, I am so screwed
@VortexWarp5 жыл бұрын
Edexcel tomorrow for me, good luck!
@hi440985 жыл бұрын
Vortex Warp U 2
@TerrysRealm5 жыл бұрын
good luck Bois, you'll all smash it, bet you're all class
@laluman895 жыл бұрын
Hahaha same, wish I saw this video earlier tho😂
@gamaltk6 жыл бұрын
What an excellent video. Extremely well explained, delivered and narrated. Subbed!
@lsnceid37464 жыл бұрын
You have no Idea how much I love you
@markm4952 Жыл бұрын
My undergrad professor very loosely explained uncertainty but still expected us to do it. He didn't care if we did it right he just wanted us thinking about it. Because of that I never learned how to do this properly
@TheDeath0fDucks Жыл бұрын
Genuine lifesaver, thank you so much.
@marcuslam9455 жыл бұрын
Actually a saviour I was really struggling with uncertainties.
@Speed-tk4yk5 жыл бұрын
we got this stuff for bridging work so I haven't even started physics a level and they've given us this with no help -_- Thanks a ton dude u helped me understand. I would've been a wreck :D
@haniyabano62106 жыл бұрын
This is amazing. I was so confused before
@jeremykeetch72138 ай бұрын
It is my understanding that the first measurement for the thermometer can be written as 21.4 degree Celsius, because you know 21 for certain and then estimate the next place value (uncertain value). You are allowed to do this when the tool counts by 100, 10, 1, 0.1, 0.01, etc. This will then lead to the nominal and uncertainty having the same number of decimal places which is another rule? Please advise.
@jeremykeetch72138 ай бұрын
I almost forgot to say...Fantastic summary, thank you
@sas94548 ай бұрын
I should have watched this video at the beginning of y12. But here I am, near the end of y13, finally getting this topic.
@prodbyalves3 жыл бұрын
hi, not sure if this has been pointed out, but you mentioned that we must keep the number of figures from the measurements/reading the same when making calculations, but what about in the calculation of h^2 down to h, can u reduce the number of sig figs there in that case? or might that risk a loss of marks, helpful video nonetheless
@ahmednader1775 жыл бұрын
You are a hero I really didn't understand how to calculate uncertainity
@good4usoul4 жыл бұрын
At UIUC I was taught to estimate the nearest 10th of the resolution, so that thermometer reading would have been 21.5 +/- 0.5
@ScienceShorts4 жыл бұрын
That's not a 10th, but a half - that is what most consider appropriate. Not me.
@oreosxking10922 жыл бұрын
Hey this really REALLY helped! Thanks so much! God bless you man!
@mobueh3 жыл бұрын
This video saved my life before my exam,thank you
@panda456243 жыл бұрын
ur voice is calming
@SGTCarrera4 жыл бұрын
Important question: All I ask is how I find percentage uncertainty of potential difference from a voltmeter for the resistivity practical, in order for me to find the percentage uncertainty of resistance. The absolute uncertainty for me is +- 1*10^-2V but the voltage is constantly being changed so there is no fixed value to put into the formula. Essentially I just need someone to explicitly say which method is correct. E.g. Find average Pd and use average formula, however the Pd is not just a repeat reading as it is proportional to the dependent variable of resistance. Please just tell me explicitly how we find percentage uncertainty in this case.
@SophiePlaysSMY125 жыл бұрын
What if you weren’t given the percentage uncertainty value when working out v^2? Would you go straight to doubling the +or- m/s value instead?
@lawcch3 жыл бұрын
beautifully presented, simple, and very clear.
@ygt6265 жыл бұрын
I HATE PAPER 3!!!!!
@anukritiacharya16292 ай бұрын
bro I hate all paperss
@izzavibe46462 ай бұрын
@@anukritiacharya1629real
@ygt6262 ай бұрын
@@anukritiacharya1629 bro im 24 now goodluck 😂
@anukritiacharya16292 ай бұрын
@@ygt626 which country u frm?
@Ok_okay_la23 күн бұрын
I'm so scared for as level
@Bijay0076 жыл бұрын
Does the fact that Uncertainty for readings is half the resolution,and for measurements it is the resolution,hold up even in higher studies or just till the A'levels?
@Mirandaxuu6 жыл бұрын
best video to explain the uncertainties ever!!!!!! better than my physics teacher's explaination actually.
@milesbaker71534 жыл бұрын
When you stated the absolute uncertainty in the velocity 15:04 you only gave it to 1 s.f but the actual velocity was given to 2 s.f. However, when you square rooted 50 (16:47) you gave the answer to 2 significant figures so 7.1 but the actual height 50, was only given to 1s.f.. Are you supposed to give the uncertainty to the no. of significant figures or the no. of decimal places?
@I3uzzzzzz6 жыл бұрын
safe
@mel_icka5 жыл бұрын
Best 21:42 of resvision ive ever done, thanks a lot!
@Nathan-tb2ez3 жыл бұрын
You explain this so much better than my textbook thank you
@luckedout21314 жыл бұрын
I got sick and had to to to the hospital so I skipped my physics class once. I miss out on this. it doesn't end there, tommorow there's a test about this uncertainty. Thanks really helped me to get the base
@luckedout21314 жыл бұрын
I'm on AS level
@theolynwarrender6 жыл бұрын
Great video(s!) -- I've been watching tonnes of them recently. Quick question -- Can I expect anything on uncertainties for AQA Paper 1 and 2? or is it all within the experiments part of Paper 3? Cheers!
@pixiedust13835 жыл бұрын
Pretty sure it's all just on paper 3.
@edizferitkula99206 жыл бұрын
Best explanation of uncertainity on youtube, thanks
@st.angelone0183 жыл бұрын
thanks you so much, it really helped. u got a new subscriber
@blancaroca87865 жыл бұрын
This is the syllabus which you need for the exams. However it is obviously dodgy and not what professional physicists do. Like the prof suggests, That first thermometer example would be recorded as 21.4 with a visual reading uncertainty of +/- 0.2 or similar. We humans are not blind and can easily read between the lines and we can appreciate our visual error here is about maybe a tenth or 2 tenths of a division. In fact stating 21 +/- 0.5 would be very dodgy as just a tiny misread could so easily have given 22 +/- 0.5. Also a good scientist will look at the box to find the manufacturers estimated confidence in readings, and then possibly add an extra 0.1 or 0.2 to his uncertainty. It is unfortunate that the exam boards have tried to oversimplify things for the sake of a simple syllabus and by doing this they are preventing students from thinking clearly for themselves. They are therefore presenting science like english literature like something to be memorised. The exam boards need to get more feedback from top class physicists who are not nervous to give their opinions.
@saadiaislamnoor235 Жыл бұрын
Thank you soo much it really helped a lot
@spikedog1232 жыл бұрын
If a balance shows a reading, doesn't that mean we can estimate the error of a mass using a 2-decimal place top-pan balance to ± 0.005 g? Shouldn't the error for readings using digital devices be the smallest increment?
@beth81376 жыл бұрын
You are a life saver
@nahsee-zq6vg4 ай бұрын
i never understood uncertainties until i watched this video, thanks
@gideoncrew85006 жыл бұрын
Do you have a video for the micrometer screw guage and vernier calliper measurment recording
@ScienceShorts6 жыл бұрын
kzbin.info/www/bejne/gpmadqBtocxol68
@gideoncrew85006 жыл бұрын
Science Shorts thanks!!!
@gideoncrew85006 жыл бұрын
Ill check out the micrometer guage somewhere else, but the vernier scale really helped me out
@arisrusiana27502 жыл бұрын
This is of great help, could you provide references or source particularly in no zero error and zero error?
@aidanchang3868 Жыл бұрын
This was really helpful, thank you!
@mrmysterious17245 жыл бұрын
11:04 isn't going to plus or minus one even if wasn't concentrating
@theamazingguy1503 жыл бұрын
Very well explained. Much respect
@loveen31866 жыл бұрын
wow, ur explanations and videos are amazing and so is the lighting! you should make more videos
@farhananwar31864 жыл бұрын
Gosh, I wish I had this when I was doing my finals
@sbsanni4 жыл бұрын
At 2:45 isn't the reading meant to be 21.0°C +/-0.5 as the measurement (reading in this case) is suppose to have the same dp as the absolute error and also since we are always allow to estimate to a decimal place lower than the smallest division on a scale.
@ScienceShorts4 жыл бұрын
This is the big debate. I would argue that as you cannot judge perfectly whether it's gone past half way, an uncertainty of 0.5 means that the true value could lie outside of this.
@divyanshtripathi53093 жыл бұрын
you taught it really well. thanks
@BhaberAlishahАй бұрын
wow your a good teacher bravo and thanks
@ryanwhorra78373 жыл бұрын
Thank you so much mate. I was going to fail my exam before I watched your video😀
@saroojchohan181110 ай бұрын
It's amazing..... very impressive 👏 👌 👍
@purpledoo Жыл бұрын
At 8:55 you said that the uncertainty should have the same number of decimal places as the measurement, while in the example of measuring with a termomether (2:05) you wrote an uncertainity of 0.5 when the reading on the instrument was an integer number. Why is that so?
@aliaaatta84985 жыл бұрын
15:06 isn't 0.3 to 1 significant figure and 4.4 is to 2 significant figures so instead the uncertainty should be 0.32
@TheAzraf1236 жыл бұрын
EXTREMLY HELPFUL! Thank you very much.
@hman01215 жыл бұрын
Great video - cleared up a lot of confusion.
@Ace-gf9om6 жыл бұрын
Brillian video. Thank you
@mugishapopoo5648 Жыл бұрын
@Mr Hassan's math Chanel and you ...be ready u will both get a shout-out in my graduation speech...i couldn't have made it with out u