Feel the moment of inertia-Physics of toys // Homemade Science with Bruce Yeany

[@M3T4LLik4]

I'm a new physics teacher starting out. Your videos have made my physics instruction so much more meaningful for my students, especially since I can build most of the demos myself without paying top dollar for shined-up, single purposed contraptions! I wish I had you as my physics teacher in high school!

[@YeanyScience]

Thanks, I hope these help

[@ianthomas3653]

Wish I had this guy for a science teacher. I like sharing these videos with my son. No better way to learn this kind of science than when you can see and do it at home.

[@YeanyScience]

thanks

[@kevyelyod1211]

I think US schools have lots of money I couldn’t see my old secondary school spending money on science props. I love this guy!

[@YeanyScience]

thank you. Our school never had much of a budget for science equipment which is why I've had to build a lot of my own demonstrations using my own materials

[@flemdogscience]

Man I love all the lab applications for the students!

[@vsarts1967]

Thank you for your videos . I show these videos to my students while teaching related concepts. I am a new physics teacher. So thank you again ❤

[@fdc313]

It's fun to still be learning something at 59. Thank you

[@YeanyScience]

fdc313, 59, then you're still a youngster I've got a few years on you. At 61, I'm still amazed at how nature ties everything together. thanks for your post.

[@arifshake3076]

+Bruce Yeany (Yeany Science) thank you sir for all these

[@oplive9382]

kzbin.info/www/bejne/pJ-okHqLjbCopq8

[@DineshPatel-iq1dk]

Thank you, sir.

[@rajagohar4319]

Dear Sir, I am an engineering student and I would like appreciate your teaching methodology for your students. It is very crucial for students to learn the understanding of physics with the help of physical experiments. You are doing a great job.

[@SpiderMan-in9rl]

I had been wondering about the true meaning of Moment Of Inertia... And I finally found the video I needed! Really great explanation!

[@belshazer]

This guy is great!

[@lightman500]

Great job on your demos! Easy to follow, good clear explanations, and actual real life demos. Kudos!

[@planecrash3372]

These videos are wonderful for teaching science in homeschool. Thank you for putting these together

[@luciferhell4116]

I am an aerospace engineering student , and teachers like you on KZbin makes basics fun !!! It’s so much fun to go through the basics again A sub from me for making amazing vids

[@saketrawatawesome]

I wish I had teachers like you and this level of studies in rural India 😞

[@anomalyp8584]

It keeps amazing me how your angle to the problem and the demonstrations used are so brilliant. Hands on and genius designs, which are moreover simple to acquire/make. Shows not only knowledge, but also a solid understanding. Thank you so much for sharing!

[@mustapha2]

Finally I understand, thank you Mr. Bruce, good explanation.

[@jbgoogl]

Thank you for filming so many examples!

[@pdrcft0189]

wow the effort you took in explaining this topic is commendable and also the props!

[@carmelpule6954]

Excellent in every way. Two similar shaped objects as at 2:55 but with different inertia would behave different during acceleration and retardation or a transient state but once steady state condition arise as say a constant velocity down a ramp due to the same drag they they will behave," the same" as far as final velocity is concerned. Brilliant demonstrations, well done.

[@minaabd5060]

Woow i have never seen teaching method like this , you are great 😍

[@minaabd5060]

Thank you

[@igotabadidea_8]

we need this kind of classes, they are fun and very easy and fast to understand the concepts.

[@igotabadidea_8]

random formulas and que would not give earth good physicians, its good experimental knowledge about how thing work, and unfortunately this is missing in our classes.

[@joseantonio8819]

Hi ! I´m form Mexico and you videos are great ! Thank you for teaching and sharing. Muchas gracias !

[@professionallogic503]

I thank you for taking the time to share that with me.

[@rafid9399]

Give this man a nobel prize❤

[@harrisashraff]

You are doing a very good job sir. Your passion for teaching is clearly seen in your demonstrations.

[@YeanyScience]

thank you

[@coolcat3281]

This is a great explanation!!! I finally understand moment of inertia!! thank you for this video!

[@Mau365PP]

You are the genius of demonstrations

[@mariamoine4327]

we need more teachers like you

[@sujaysahu3449]

Best teacher I have seen😍😍 lot of love for you sir

[@chandrababusajja5528]

Nice explanation I ever found. If I have had a teacher like you in my education I would have been a Scientist

[@brandonyoung-kemkes1128]

Your a credit to teachers everywhere.

[@astralshiro3358]

Learning physics would be much easier if everything is taught/demonstrated by people like you

[@alexmig4181]

I study physics at university in italy, rotation has always been very hard for me to get my head around, this has been inmensly helpful, thank you !!!

[@ptyptypty3]

my parents taught me about the Moment of Inertia... they said that my Sitting in a Recliner chair, drinking Soda and playing VideoGames was an example of me at the Moment I had Inertia of Rest... rather than doing my chores! :)

[@iwintommelvin5127]

a fan from India...GREAT JOB...

[@cesruhf2605]

you can use a long ruler or piece of wood as a stopper for the rolling objects. You can get the most fair start for every object

[@hijfhdjxjdjd5701]

Sir I love your way to teach physics in simple way . ashiqeen India delhi

[@muhsinansari1385]

im from india , im finding a video which gives feel of moment of inertia , then i found you sir such a nice video

[@YeanyScience]

thank you, always nice to hear that it was enjoyed.

[@libinalex8261]

The most lucky students. They get a chance to study physics like THIS!!!

[@eddiemorrone870]

Excellent demonstrations.

[@ahmedkamla2109]

Thanks for making these experiments.

[@sidratulmuntaha4050]

0:48 Why did the object with wheels at the end move fster?

[@ArvindSharmaofficial]

can you explain me the part after 5:12 why the excel wheel reach early then solid sphere..?

[@dipendersandhu4258]

Bcz same mass is distributed between two disc and they have there axis along the line connecting them so if we calculate moment of inertia of a individual disc it is less than solid sphere. But if we compare a disc of same mass m.o.i. found to be more.

[@ravigopal5307]

May be the ball is hallow at middle

[@Phillijr100]

Great explanation demonstration, thank you

[@guroo_ghantaal]

Such a great explanation! Thank you so much for being such a wonderful teacher!

[@ChrisMcNeely]

Wish I had you as a teacher!

[@ASMA-gs3qb]

Thank you this really excited me to continue studying

[@jaylagang4691]

I wish my son will get a science teacher like him.

[@charlesbrasil2837]

Excelent ! Congratulations professor for tua vídeo. Very good !

[@karollynesanchez597]

Me encantó el video, muy buena la explicación !

[@technotux7835]

sir i have 2 masses on a spinning table one is heavier than the other, which mass will move farther from the centre?

[@079sivagiriv2]

physics is awesome when we experience it!! good video

[@adisanketpatel2671]

Teaching Physics with experiment is more interesting!!😀😀

[@DtubeRUs]

How did you get the weights in the homemade objects? Did you hot glue them?

[@PhysicswithDhanashree]

Thank you so much sir for such an easy demo for difficult concept. My students are going to like this

[@deltha488]

I’m still a bit confused. The greater the distance from pivot the greater the torque so I’d expect a greater angular acceleration but the moment of inertia says that greater distance means greater resistance to motion and smaller angular acceleration. Also, say you have a 1kg mass 1m away from pivot and you apply a 1N force to it(so 1Nm torque), but another 1kg mass is 2m away from pivot, this original force causes this one to accelerate hence a force is being applied to this mass as well, this force is greater as it has a greater tangential acceleration due to being further away. Same mass, same angular acceleration, but greater radius gives us a greater torque on the second mass than the first, how can this be if only one force was applied? Shouldn’t the torque be the same at all times on the same side of the pivot?

[@jamestha3d845]

Thank you so much for this video! So well explained. Subscribed!

[@vanshjaiswal9019]

I wish such people in India were taught all this in high school

[@DineshPatel-iq1dk]

Thank you very much,sir.

[@thehillcaliboy7855]

Great work 🔥🔥

[@dhruw9935]

You are brilliant!

[@kaviisworld]

hey i have ? why we are not using in motorcycle or car tyre disk shape with center weight can reduced Engine power

[@fasmeirj5923]

Wow ,you made physics easy

[@louf7178]

5:17 That was surprising. Thank you. BTW, the ending music sounds like it is EC Can't find my way home.

[@YeanyScience]

thanks, and it is, love the song

[@viveksinghchouhan948]

I am enlightened ✨

[@rishabhpratiush8184]

sir love from india really this video helped me a lot

[@ambroserajkumar1439]

nice demonstration. thank you sir

[@lhmissio]

Amazing, you are a great teacher sir

[@krisshalayelozada4038]

Which moves faster? a dowel with a disk attached or a dowel without one

[@amarj9909]

Sir, I am happy I found you, I posted the same question below who try to explain MOMENT OF INERTIA, in videos but i am not satisfied, i hope u can explain it. In moment of inertia I =M*r^2, how did r^2 came? If body is point mass or continuous mass, from axis of rotation at…….. r distance….. when force applied it resist to make change in rotation is called as moment of inertia, then it should be I =M*r then where did another r came from, please clarify me? I am confused why it will be r^2, what is it use being squaring r, how it is deduced?

[@preethalal81]

from where can i get these tools and kits online??

[@YeanyScience]

almost all of my materials are handmade, I have additional information for many of these pieces, send me an email at [e-mail] and I will forward what I can

[@dipendersandhu4258]

Sir why mass in car's tyre is distributed at the periphery. Instead Of centre?? While if we arrange mass on centre it decreases moment of inertia and easy to move. Please reply me sir i'm waiting.🙄

[@shivanshraj6571]

Hi Dip, try to visualize that the whole thing that turns in a car is the axle plus the tires. And obviously, the axle carries the majority of the mass, and it turns closer to the axis of rotation. PS: I'm a little bit of physics teacher too :D

[@dipendersandhu4258]

@@shivanshraj6571 i have get my ans. Sir just imagine it if we decrease m.o.i. of tyre then it will take low force to move and similar more force to stop and it will avoide all the irregular section of roads

[@dipendersandhu4258]

@@shivanshraj6571 and I'm talking about axle not tyre in acle mass is distributed at the corner

[@kP-yb8eh]

sir your helping to future scientist.. thanks..

[@جهان-ظ9ص]

amazing approach! !

[@kyawmyohtet4715]

Thanks alot!! This solves my problems.

[@rohitsanjay1]

how did that happen in the beginning? is it because the refractive index of the ice cubes were same as that of the oil?

[@keithdawson8105]

I think it is broken Pyrex beakers, which have the same refractive index as vegetable oil. (Late answer, I know but someone else may be wondering).

[@TechnoW1zard]

Ok so now a "moment" is not just an abstract unit of time, such as "a moment of silence". Or why is it called a "moment" of inertia? Inertia is a property of matter, and matter exists without regard to time, apart from influence from outside forces. A pen on my desk is there as for long as I leave it there, not just for a "moment". The "moment" of inertia, the "time it takes to change acceleration" increases or decreases according to the formula I=mr^2: when there is a change in mass or the change in radius. This change affects the time, but the "moment" sounds like it's somewhere between a) the amount of force needed to modify the at-rest or in-motion state of the mass, and b) the amount of time it takes for the same constant force to modify the at-rest or acceleration of the mass. A moment of inertial is somewhere between a measure of time and a measure of force. Is that right? I have been wanting to understand this for many years.

[@dharma6662013]

Great video, thank you.

[@bahhaziz]

if I add extra weight to the center of my car wheels ... will it drive faster and use less gas???

[@emotown1]

No ... all you've done there is increase the mass of the car, which would make it accelerate due to gravity down a slope faster (as the resistive force caused by the moment of inertia of the wheels is now even smaller in relation to the pulling force due to gravity on the vehicle). But on a level surface, you'd use more gas to reach a certain velocity and you would not accelerate as quickly. If that's even a serious question. Lol!

[@norhanfathy6816]

amazing dr

[@tiaanjansevanrensburg2762]

Thank you very Much!!!!!

[@manutpunpook9197]

can feel it now thank you

[@Lb.q2]

So its like a pendulum? Shorter length=shorter periods?

[@smarthomeideas6020]

Excellent sir

[@amsa.2]

very helpful, thank you!!

[@sriram129]

What about torque in both objects?

[@Mishraji_hain]

Commendable 🧠

[@PaulMurrayCanberra]

The other factor is rolling resistance, which is greater for a tight radius.

[@hattorikanzo2793]

You can't appreciate the real beauty untill and unless you actually know the real math behind this

[@trulyinfamous]

Is that why larger propellers spin slower than smaller ones?

[@YeanyScience]

that plus they are trying to push more air

[@phanisuri8361]

so cool!!! thanks for this ;

[@mehulsharma8804]

i learned something today .

[@hozaifaessam6853]

why we squared the distance?

[@ArvindSharmaofficial]

is there any way to buy these instruments internationally...

[@YeanyScience]

Hi Arvind, not that I know of, pretty much everything I've shown are homemade items. However, I do have instructions on how to build most of them

[@arifshake3076]

+Bruce Yeany (Yeany Science) thanks sir for all the demo

[@ThePawelekPawelek]

It’s important factor in bicycle wheels. The greater the mass of rim plus tire, the harder the bike accelerates.

[@Etruushi]

Bro i wish this man was my teacher 😭

[@frankiethefrank]

Fascinating!

[@edwarddi3833]

Great Video! if you were my physics teacher, I would be....

[@jm56z43]

Missing the formulae for these videos. The demonstration is however very good.

[@YeanyScience]

You're right and that has been a conscious effort, as a middle school science teacher I've kept the math to a minimum and have made an effort to keep the demonstrations simple and repeatable. This channel was supposed to be introduction to conceptual physics. For those that want to take it further, there is a lot of information that one can easily find on the internet for any topic by doing a simple search. If I ever get it going, my original was to add a website that would take the ideas presented here much further as you suggest. I still hope to do that.

[@jm56z43]

@@YeanyScience If I weren't late for like, 5 websites and a few other school projects, I'd be happy to help you. But right now I simply can't.

[@muhiturrahman5062]

This is great.

[@ashithcalicut]

great video