GCSE Physics - Moments - Gears and Levers #47

[@isabellaelizabeth953]

I just wanted to say thank you for this! My physics teacher did an online lesson on this for an hour I didn’t understand it at all, watched your two videos completely/ confidently understand this now! :)

[@hello-kx9qo]

Hi I just got my gcse results thanks so much cognito I could never have got my 9 in physics without you!!

[@Highkeyalmazz]

What grade did u got ?

[@vickiiie2617]

@@Highkeyalmazz🤦‍♂️

[@Sahadusman]

@@Highkeyalmazz Bro is failing english...

[@Highkeyalmazz]

@@Sahadusman which grade did u got

[@Highkeyalmazz]

@@Sahadusman alhamdulliha a star in English 😴

[@maxmarino4243]

Hello, your videos are so well made and I seriously appreciate the amount of effort put into them! Keep it up 🤗

[@Cognitoedu]

Hey Max thank you for such a kind comment mate! Really appreciate the support and so happy to hear you’re finding the vids helpful/enjoyable 🥳

[@luxmeramesh]

6 mins and 14 secs did more to my life than 2 weeks taught by a teacher with a PHD. Your videos are so helpful thank you so much!!

[@freyag8388]

these videos have been the only thing that makes me have hope for these assessments and so thankyou for all the effort you put into them because they really help!

[@Cognitoedu]

thankyou! it's so lovely to read comments like this, glad you're enjoying them 🤩

[@nem3sis760]

I've been using your videos for the past few weeks for help with all my science revisions for my upcoming end of year exams, they really do help me understand these topics a lot and sciences are usually my weakest subjects. Especially Physics.

[@Cognitoedu]

Glad we could help NEM3SIS! 👍

[@acjccharlesworth8718]

Watching these with a gcse in two hours - I just wanted to say thank you for the hours of work to make sure we can all understand the world around us

[@badattempt01]

Hey! How did your exams go?

[@babyoil00]

Wow bro how did the GCSE go

[@babyoil00]

​@@badattempt01 I came to check too haha

[@SubliminalSaoo]

@@babyoil00 they literally never say

[@Sahadusman]

thank u i got a grade 4- thanks to ur videos!1

[@suleimanismaeil7484]

just trying to learn this 1hr before my exam

[@sensor3dd]

😂😂😂😂

[@OMG-uu6om]

l am also trying to learn this 2 days before my Exam😂

[@afa8781]

Same

[@sadiaafrinemunni327]

Same 😍

[@maryamali6099]

Ya I'm watching exactly 30 minutes 😂

[@abdevil2330]

Such a nice videooo !!! My teacher could not explain this is less than a week but you did great. I understood everything. May God bless you

[@bakribhai1955]

Mate your gonna go down as a legend based on how helpful your videos are

[@mohsin4825]

Acha hame sekhae ga

[@bakribhai1955]

@@mohsin4825 Nhi Cognito hume sikhae gaa

[@mohsin4825]

@@bakribhai1955 nahi

[@Kain-k2n]

Honestly helped so much... could never understand this yet here I am. I now know how this works. Thank you😅

[@wasiolhoque9278]

2 hours class: understood nothing 3 min video made my day

[@yemchikwa1]

True😂

[@TotallyLegitEgg]

these videos are the only way im going to get through gcse physics- my teacher sucks- please keep it up

[@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_2.11. 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

[@Sahadusman]

No

[@gamer_fam6]

Thx alot ive watched both videos on turning effects of forces and its really helped.coulnt understand from the physics book😅😄

[@Pearlhatesphysics]

This channel is my saviour

[@mominaarshad2794]

Very good and understandable content, whenever i study from my books and notes, i always watch ur videos in addition ❤❤❤

[@dhruvabrawlstars9]

Best video!

[@Anonymousview-s8l]

I dont enjoy physics, but the illustrations make it much more interesting to learn about! Thanks for the simple explanations

[@jingzhao2718]

Quick question: "total work done remains the same" -- is that saying the total work done by the ENGINE doesn't change (isn't doubled), or the work done by GEAR A is the same as that done by GEAR B? Great video, so thanks.

[@guliiusmonova]

hello,your videos are really helpful,thanks

[@Cognitoedu]

Thanks! Great to hear they’ve helped you out 🥳

[@user-uj7yc2vw5h]

Me here the day before m exam trying to learn the stuff my teacher has failed to teach properly thank god for cognito 😮‍💨

[@OMG-uu6om]

Same😂

[@soLight-kj2tj]

Wanted to ask a question on 3:42 the formula was m/f=d and you did 784/400 was this an error because the force was 1960N

[@Zephyr-jk7bg]

No pretty sure you rearrange the formula

[@emmacheese6107]

784N was the force needed whereas 400N was the force we could apply (using all of the person's strength) so divide the moment force (784N) by the force applied (400N) to find out the distance (how far away from the pivot to apply this force)

[@StrawberryS-vk5my]

Hi Cognito! I want to ask so the larger a moment is the object will turn into that direction right?

[@gottem125]

*yes*

[@umaraliaamir]

If I get A* in physics, it's undoubtfully because of you, Thank you so much🤗

[@jordanluru2622]

thank you so much this is the part of physics i understood the least of thanks so much❤

[@Tzakalanis]

1.25 is your best friend

[@JatPhenshllem]

1.25

[@plutosstrawberries]

helllooo cognito! do you know where i can get some past papers with the answers for maths and sciences?

[@Cognitoedu]

All exam boards (e.g. AQA, Edexcel etc) will have some past papers with mark schemes on their websites - you can usually just google what you're looking for though and they'll come up!

[@mantosh56]

@@Cognitoedu thanks for the advice...much appreciated Regards.😁

[@64_bit_coding]

thanks mate really helpful video

[@bldong9992]

Thanks

[@paulward2346]

Thanks my teacher never made this clear

[@WaranaSJ]

will you post more videos? just curious

[@andrewmonson9872]

very help full ! thanks

[@afnankillawi507]

How about when the gear calculation is asked in the matter of teeth and complete revolutions ? How do we calculate then?

[@yasirisrar7406]

The rock and see saw one , only mentions the distance required to keep the sea saw stationary not turn it clockwise, for it to move clockwise moment clockwise needs to be more , so therefore distance needs to be increased

[@sheilabirling]

THANK YOU!

[@BioPhys92]

Good vid. Thank you

[@user-uj7yc2vw5h]

My teacher put this in the exam and has never taught us it

[@k-popearth3924]

sir, you didn't explain classes of levers, can you please create a video of classes of levers

[@someone...000]

I wanted to ask what we actually mean by turning effect. So is that how much something has turned, eg like 90 degrees??? So if a lever turns something 90 degrees but another turns something 60 degrees, then therefore the first one had a greater turning effect right? Also why does the output force being close to pivot mean that there is a larger out put force. Is it cos M=Fd so if distance is smaller from pivot, but moment is same, then force must be greater??? This topic really confuses me!

[@Leo_BS-ex2xz]

Why is the work done the same for the two gears??

[@iub440]

rotates twice

[@jonathanlee1692]

i just realized the gear is actually similar to the pfp of cognito XD

[@methujalithumpalliyaguruga2105]

I couldent undertand,how does that 400 N comes.Into the leaver

[@Excellade]

suppose that is largest force generated by the human arm

[@Felixwas_there]

Even cognito has a gear in its pfp

[@Hazemcars]

......

[@elise2681]

leavers

[@iamashleyparker]

30 mins before anyone?

[@SilverWolf09]

Yes

[@Mapo_YTzz]

Cognito my boy

[@Wojbest_YT]

that is the first time ever seen then using a gif

[@yourgymbuddy7309]

I am going to go to school after 15 mins and give my exam