AP Physics 1: Rotational Dynamics Review

[@user-gy4oj7sy7m]

Watching every single video of yours one day before AP Exam. Learned more in 30 min than an entire year of my physics class :)

[@FlippingPhysics]

Then I suggest you keep watching. Good luck tomorrow!

[@notjin2109]

YOOO SAME

[@user-gy4oj7sy7m]

Done with my exams now. Thanks man, you helped a lot! :)

[@LunaticalGaming]

@@user-gy4oj7sy7m uh what score did you get!?

[@user-gy4oj7sy7m]

@@LunaticalGaming 5 I recall lols

[@MsStefHipHop]

You put so much effort into your videos, they're great. Thank you! :)

[@Bo-xi8yu]

I’ve been struggling all year but I found your channel recently and everything is making sense now TYSM

[@FlippingPhysics]

Bo, you are absolutely welcome. So glad to help out a Bo!!

[@MopTopRock]

Can't get enough of these Ap 1 reviews, need them EVERYDAY!!!!

[@FlippingPhysics]

You make me happy!

[@alexe1673]

You look exactly how someone would expect an AP Physics teacher to look. Your videos are super helpful. Rock on.

[@FlippingPhysics]

+Elise H You expect AP Physics teachers to have long hair and always wear tie-dye? What planet do you live on?

[@alexe1673]

Flipping Physics Hmm, you look exactly how someone would think a *physicist* would look. You look exactly how someone would *hope* an AP Physics teacher would look.

[@FlippingPhysics]

+Elise H Ah, makes sense. I was just watching the documentary Particle Fever about the LHC and there were two physics there with long hair. Perhaps there is something to that...

[@twothousandcookies]

My teacher doesn't teach at all, so this video was really helpful. I already signed up for the AP too, so i will probably revisit this channel again! Subbed!

[@FlippingPhysics]

+twothousandcookies Thanks for the sub and keep on learning!

[@FlippingPhysics]

The sixth in my set of AP Physics 1 review videos. Enjoy! #PhysicsED #flipclass #APPhysics1

[@tombskater3000]

+Flipping Physics Nah man. NAH MAN. Had to delete that Beastie Boys comment (Aced the test over rotational motion though. Great vid! Now its on to electrostatics, Princeton Review, and LE ERPER ERXERM [AP EXAM]).

[@tombskater3000]

FERVE DERZ...

[@TheTinabina10]

THESE VIDEOS ARE PERFECT EXPLANATIONS I WISH MY TEACHER WAS THIS EXPLICIT THANK YOU THANK YOU THANK YOU

[@FlippingPhysics]

+TheTinabina10 YOU ARE WELCOME WHY WE YELLING AT EACH OTHER YOU'RE WELCOME YOU'RE WELCOME

[@qwaszxjklqwaszxjkl]

omg the ap test is in a few weeks, and i can't believe i've only just found this channel and website, thank you so much, this is gonna be so very helpful!

[@FlippingPhysics]

+clew 3 Tell all your friends and (hopefully) next year students will be able to find Flipping Physics earlier!!

[@bincbrega1895]

You are a flipping legend. I got a bad grade on the test in class. Now that I've seen this, I feel like I'll be ready for the problems on my final and AP Exam. Thank you so much.

[@FlippingPhysics]

Best of luck on Tuesday!! Glad to help you feel more confident.

[@bincbrega1895]

Just took the exam after reviewing by watching your videos. The test felt so easy. Thank you so much.

[@Firejet9012]

You're a beautiful person. Thank you for making your videos on flipping physics, they have really helped me and my friends get certain concepts needed for the AP Physics 1 exam clarified.

[@FlippingPhysics]

+Gustavo Borjas You are welcome. Glad to help. Glad you shared with your friends. Good luck today.

[@KaelixMusic]

In this video I have learned more than in a whole semester of online classes, I love you

[@FlippingPhysics]

Love you too

[@dharunnaga]

Thank you so much for making all of these great videos, AP1 was a rude awakening for me and your videos are extremely helpful!!

[@FlippingPhysics]

You are so welcome!

[@dizzychaseradio]

You sir, are awesome ! Keep it up and big thanks for taking time out of your day to help others !! I'm sure many students are very thankful !

[@kevin-qy6nn]

They should assign this as homework on the very first day so we don’t have to do anything in class

[@FlippingPhysics]

Might be a good idea. Y'all would not understand it, however, it might help you to appreciate how much work you will have to put in to learning the material.

[@ianmatibag4366]

This is how you teach Physics! Thank you! Wish me luck in my exams!

[@FlippingPhysics]

+Ian Mating Good luck on your exams!!!

[@xcalcovarze6000]

It is not Mating. It is Matibag. Like teabagging.

[@raymondfendyj6684]

Such a great teaching method but will get even greater with more videos on approaches to problems and solving them. Keep up the good work!

[@FlippingPhysics]

Thank you. Have you not seen the more than 200 videos I have covering topics in more detail? flippingphysics.com/algebra.html

[@sashavandeventer]

as a physics major in college this is still the best midterm/final review I've found

[@FlippingPhysics]

Wonderful!

[@jandomingo7162]

I love these vids, I have been using them for the past month after I gave up passively watching the other popular physics vids. The video quality is excellent although I would like to suggest a lapel mic, I think it would reduce the echo on the teaching scenes.

[@FlippingPhysics]

Jan Domingo Thanks for the suggestion. I will definitely look into using a lapel mic. I film in my basement which is acoustically very "live" and produces that echo. A lavalier mic hadn't really occurred to me, maybe it's because it's just another thing to buy...

[@vaedkamat484]

You are one of those yourtubers that save people decades of learning for a single video

[@FlippingPhysics]

Glad you appreciate it!

[@mahf99]

Mr. Palmer, First of all, thank you for taking the time and putting in the effort to make these awesome videos! I appreciate people like you! I do have a question though. When the rotational inertia of the sphere rolling down the ramp is increased, doesn't its rotational speed decrease? And doesn't decreasing the rotational speed decrease the rotational kinetic energy of the ball rolling down the ramp because the rotational speed is squared in the rotational kinetic energy formula? I know I am wrong, but can you explain why? Thank you, sir! And say hello to Bo, Billy, and Bobby for me!

[@FlippingPhysics]

I think this problem solution should help you. kzbin.info/www/bejne/i4WVqKxpbrmHoNU Lecture notes are on the last page of this pdf: www.flippingphysics.com/uploads/2/1/1/0/21103672/ap_physics_c_flipped_lecture_notes_chapter_09-10_-_all_of_them.pdf

[@mahf99]

thank you, Mr. P! I watched it and things are clearer than before. Once again, I appreciate the videos and am looking to do well on the AP exam next week...wish me luck...

[@badmediakarma81]

The video quality and the notes are very helpful, but the explanations for example problems and concepts are a little long-winded and confusing. Maybe spend more time explaining these things slowly and clearly in the future? Thank you!

[@shikhargupta6626]

Well, this is a review, not an in-depth teaching video. I'm sure he has more in-depth videos like what you are describing as well. This video assumes you have already learned the topic, and grasping these long-winded things and explanations should not be a problem if you have already learned the topic.

[@valvillanueva-ruiz1697]

This is helpful for reviewing the basic concepts for college Physics too!!!

[@Spacexioms]

Learns all material 1 week before practice ap exam

[@FlippingPhysics]

+Juan Rodriguez 😒

[@miguelreyes2473]

dude same haha, but my actual exam is in one week exactly...

[@nothing-me1mn]

+Miguel Reyes bruh you just ruined his life

[@miguelreyes2473]

+Karl Protil sesame seeds.

[@stumbling]

I've been really stressed about exams and these videos helped so much. Thank you! If I get a good grade I will have to buy you a virtual beer or something.

[@FlippingPhysics]

CowLunch Please note: it doesn't have to be virtual. :) www.flippingphysics.com/give.html

[@stumbling]

Sure, I will drop you a couple bucks for your trouble. :) Have you considered taking Bitcoin? That would be really convenient since this is such an international community.

[@FlippingPhysics]

CowLunch Hmmm. Bitcoin? Hadn't considered it. I'll look into it.

[@xcalcovarze6000]

Bitcoin is a cryptocurrency which is useful, but because if its popularity, there are many hackers waiting for a chance to flick it off. Id recommend using Litecoin instead. It is also a cryptocurrency.

[@arimirsky2769]

@@stumbling How are you feeling about bitcoin now?

[@lizettereyes9398]

When it says rollsndown a hill wo slipping it gains translational Ke and rotational KE

[@lizettereyes9398]

Larger I means larger ke

[@lizettereyes9398]

Velocity of object so slipping =radius×angular velocity

[@ray-kx8ql]

2:40 wait im confused, isnt Joules in Newtown seconds??

[@FlippingPhysics]

joules are newton meters. Impulse is newton seconds.

[@ray-kx8ql]

Ohhh!! I see now. Thanks!! :D

[@FlippingPhysics]

You are welcome.

[@AndrewT]

When finding the torque, is it equally correct to frame it as F perpendicular times r instead? I find it easier to think about resolving forces into components rather than lever arms. Thanks

[@nick848]

If an object slides down a frictionless ramp, all Potential energy height = kinetic energy, is this the same if it roles without slipping down a ramp with friction?

[@FlippingPhysics]

Nope. Rolling will include rotational kinetic energy, sliding will not.

[@vrishabsathish511]

ok i have a quick question... During examples when a tire rolls down a hill, there will be gravitational pot energy turning into kinetic energy linear and rotational kinetic energy. What happens when the tire slips? Oh and what about Uint? BTW amazing channel with best videos ever!!!

[@FlippingPhysics]

Yes, as a tire rolls down a hill its gravitational potential energy is converted into translational and rotational kinetic energy. If there is slipping between the tire and the hill then some energy will be converted to internal energy via work due to friction: www.flippingphysics.com/intro-wf.html

[@shoot991]

Thank You. Your videos are high $$$!!

[@FlippingPhysics]

And yet they are free...

[@dylanharvey8736]

Took the AP test today and I still choked, haha Thank you for making these videos regardless! They helped even if text anxiety didn't.

[@FlippingPhysics]

+Dylan Harvey I am sorry to hear about your "text anxiety". It must be very difficult in this day and age to suffer from such an affliction.

[@dylanharvey8736]

+Flipping Physics hahaha sorry, didn't notice the typo! Anyway, thanks again for making the videos!

[@FlippingPhysics]

+Dylan Harvey I knew it was a typo; I was just playing with you. You are welcome!

[@klyx8826]

You are my hero.

[@brendaburke9286]

Anyone else freaking out about the exam tomorrow afternoon?

[@infernoatk]

+Brenda Burke same boat with you. But you know what let's kill this test tomorrow! This test has nothing on us!

[@miguelreyes2473]

lets get that 5

[@juandossantos4534]

+Brenda Burke Yeah.. Prob not gonna pass.. #prayfora3

[@Bigmeattyrone]

+Juan Dos Santos just took the test in my country rip its so fking hard..

[@infernoatk]

It's over boys and girls. Let's go out for ice cream

[@umiahmed30able]

Thank you soo much for this review!! Honestly I have been confused about Rotational dynamics for a long time. Could you do some rotational dynamics related ap physics problems before the Ap test? :D

[@FlippingPhysics]

Umama Ahmed You are welcome for the review. At this point I am not planning to make any more AP Physics 1 review videos this year. I think the four months I spent on the 12 review videos is sufficient. Good luck on and Enjoy the AP Physics test!

[@harithreddy9309]

thanks dude, your videos are gr8

[@kevin-qy6nn]

Does angular impulse equal moment of inertia times change in angular velocity?

[@FlippingPhysics]

Yes. And remember Angular Impulse and Angular Velocity are both vectors.

[@kevin-qy6nn]

Ayy the man himself. Thanks

[@joseymartin3304]

Y’all should comment here, your scores if you took it already. I’m very curious as to how others are performing!

[@dohunkim2922]

my ap physics 1 test is in 1 week..and i was freaking out..before i met you guys. i think that i will be able to finish the whole ap physics 1 course in 1 weeks. it is possible right?

[@jeremylakey680]

ap physics test tomorrow, time to start watching random videos. Great videos!

[@Bigmeattyrone]

+Jeremy Lakey i just took the ap test. it was a lot harder than the past 2 years, u literally cant finish the free response...

[@FlippingPhysics]

+Kiki Gaming They are always hard. They are shooting for a 50% as an average grade. I hope you did well.

[@Bigmeattyrone]

Flipping Physics in my practice tests i did pretty well on the free response but in this exam the fr questions made me clueless. Most of my friends including me only finished 4 questions and we are totally unsure about our answers..

[@jeremylakey680]

+Flipping Physics yeah it was a difficult test, and I really did bomb some of the free responses. Thanks for all the videos, they helped so much.

[@FlippingPhysics]

+Jeremy Lakey Well, I hope your grade is better than expected.

[@ninadbhole3271]

thanks a lot.....it helped me a lot...😁😁😁😁 u are amazing!!!

[@FlippingPhysics]

+Ninad Bhole You are welcome!!! 😄😄😄😄

[@mro2038]

I believe you put too much time in making just this 8 minutes videos. Great explanation. Hope you get what you deserve!

[@FlippingPhysics]

Did you learn too much? Is that the problem?

[@mro2038]

@@FlippingPhysics Problem? I was trying to say that you teach very well!

[@FlippingPhysics]

Got it. Your statement that I had "put _too_ _much_ time in making just this" video, implied to me that you saw that as a problem. Now I understand. Thank you for the compliment!

[@awesomeaggron5236]

Cool vids man, have my final for general physics 1 in like 8 hours, you are probably going to be a difference between a B- and a B+ got any vids for physics 2? I will get an A for sure.

[@FlippingPhysics]

All of my algebra based physics videos are located here: www.flippingphysics.com/algebra.html And I am sure many of them cover the topics in your Physics 2 class.

[@XxAirsoftSWAGxX]

can you be my dad

[@MatthewWilliamthealmighty]

THANK YOU SO MUCH

[@FlippingPhysics]

YOU ARE WELCOME good luck today!

[@joshuacidalvarado1775]

u da best !

[@FlippingPhysics]

+Joshua Cid Alvarado Thanks !

[@yurr1ka]

how cooked am i? edit: i cooked up a 3

[@connoro2253]

can i borrow your hair for the ap exam

[@FlippingPhysics]

I don't think it would help. Channel the power of your own hair.

[@xcalcovarze6000]

What about bald people? where do they get their power from??

[@coulomb1]

I’m boutta fail this test ong

[@marilynpermenter75]

hahaha. This rules. Thanks, smart Pauly Shore.

[@adlaisoucy1106]

AP test in 30 minutes👍 some last minute studying🙃

[@MuhammadAmir-fj8yu]

Your video's "views" are inversely proportional to your "True Efforts"

[@FlippingPhysics]

+Dot Bhai Sadly, I think that may be true. 🙁

[@xcalcovarze6000]

I never really opened a door. My house has all automatic sliding doors.

[@FlippingPhysics]

Do you never leave your house?

[@elvinabdullazad7801]

"Özvə hörmət elə bratan,varavskoy aləmdə uzun sac oğlana yaxşı baxmılllar, baxmada people have mother and sister"

[@OtherDude]

helpful for some college freshmen

[@FlippingPhysics]

I hope so. Also the AP Physics C one should help too: www.flippingphysics.com/ap-physics-c-review.html

[@tmpace9]

Torque torque torque torque torque torque theyseemegotthe Torque torque torque torque torque torque theyseemegotthe.

[@balajienterprises4532]

I DON"T THINK THIS IS SUFFICIENT FOR JEE

[@winniehoran4565]

it was like live physics rap . please reduce the speed

[@power-essence-offiicial]

Ahhh . Too many fancy letters.

[@taiphan8337]

I love your clothes lol

[@FlippingPhysics]

Thanks. I dye them all. flippingphysics.com/tie-dye.html