Simple Harmonic Motion - Physics 101 / AP Physics 1 Review with Dianna Cowern

Рет қаралды 169,279

Күн бұрын

Lesson 16 (Simple Harmonic Motion) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need a review of AP Physics concepts before the exam? This course is for you!
Exercises in this video:
1. A. Find the length of a pendulum that swings with a period of 4.0 seconds on Earth.
B. What would the period be on the Moon?
2. A. Your 1000 kg car is bouncing up and down on its four identical suspension springs with a period of 1 second. What is the spring constant of those springs?
B. What would the period be on the Moon?
Credits:
Dianna Cowern - Executive Producer/Host/Writer
Jeff Brock - Lead Writer/Course Designer
Laura Chernikoff - Producer
Kaitlyn Today - Video Editor
Sophia Chen - Researcher/Writer
Erika K. Carlson - Researcher/Writer
Hope Butner - Production Assistant
Levi Butner - Videographer
Lauren Ivy - Set Design
Vanessa Hill - Consulting Producer
Aleeza McCant - Illustrator
Rachel Allen - Illustrator
Consultant - Kyle Kitzmiller
Lucy Brock, Samantha Ward - Curriculum Consultants
Cathy Cowern - Transcription

Пікірлер: 296

@serenadezz 3 жыл бұрын

9:53 the way she said "there's an integral too" as if it's nothing 😂

@maumau9466 3 жыл бұрын

😂😂

@abhilashasharmasuman6800 3 жыл бұрын

To study physics we must look at physics the way Physics Girl lovingly looks at the Foucalt Pendulum.

@vinazbro 3 жыл бұрын

Noice

@AlphaCentauri24 3 жыл бұрын

@@vinazbro Watcha doin, bro? That's my thing!

@nikunjdeepupadhyay5058 3 жыл бұрын

We are two Indian student I suppose who are watching this physics girl

@mukundvashisht6226 3 жыл бұрын

Relatable

@Udics 3 жыл бұрын

@@nikunjdeepupadhyay5058 I am an Italian guy ...I suppose...who is...

@PapaFlammy69 3 жыл бұрын

*_Everything's a Harmonic Oscillator if you're brave enough_*

@maumau9466 3 жыл бұрын

Pendulum is just an oscillating Delta function

@krishnasimha8097 3 жыл бұрын

Not a quantum mechanical harmonic oscillator

@benjaminwesterhold5762 3 жыл бұрын

Omg it’s zaddy 😯

@MrRyanroberson1 3 жыл бұрын

if sin(t) ~ t then t ~ sin(t) for small t. we can approximate linear functions as a*sin(x) + b

@namanchhibbbar2205 3 жыл бұрын

@geraldsnodd 3 жыл бұрын

I wish my school teacher taught us physics as well as you do.😕 You're a good teacher. 😃

@jozsefkalmar7054 3 жыл бұрын

@party pack Wrong. There is no Earth. It was destroyed and we are all dead.

@TheMedschoolGuy 3 жыл бұрын

I would say , In india the teachers teach even better than her

@rvdoc0170 3 жыл бұрын

@@TheMedschoolGuy Then why are you here??

@TheMedschoolGuy 3 жыл бұрын

@@rvdoc0170 it just came in my feed so i watched it

@rvdoc0170 3 жыл бұрын

@@TheMedschoolGuy Regarding Indian teachers only few I think 5% maybe some what high 10% are highly educated and talented has knowledge in real life, all other are B.E graduates from private engineering college or chosen physics for having some degree in hand they don't know anything just blaberring instructions in book. Also I don't know how can we expect our teachers to show us some experiments if our school only wants portion completion and tests to be done on time.

@WouterVerbruggen 3 жыл бұрын

Nice intro into the use of approximations in physics! Much to the despair of our mathematician friends, physics is absolutely riddled with approximations. And then we're not even talking about _applied_ physics hehe. Greetings from CERN's ATLAS magnet RnD!

@Sarthak.2406 3 жыл бұрын

One of the best youtuber to post such amazing videos on lesson important all over the world also for free 🌎 hats off to u dianna !!😀😍🤞👍👍 keep it up 🤙 👍

@cindot2520 3 жыл бұрын

How i wish you could have been my geometry teacher in high school! You're excellent at explanations! My teacher hated the question "why?"

@cindot2520 3 жыл бұрын

@Lotad-Is-Hungry excellent question 😆

@AlphaCentauri24 3 жыл бұрын

1:30 uhh 1:35 huhhhh 1:48 hooffff 2:30 hppppff Diana undergoing 'physic'-al hardwork for us! 😋

@himstitute9030 3 жыл бұрын

Hey Diana,I am from India and preparing for jee mains and advanced.I am in class11th and I was very happy when this 101series was introduced by you.these days whenever I want a killer visualisation of any topic in physics I just watch your video relevant to that topic which helps me a lot...👍🏻👍🏻👍🏻👍🏻

@2azy_creative 3 жыл бұрын

Best foundational videos of physics on KZfaq 🤯❤️👍🏻

@chillsahoy2640 3 жыл бұрын

The way you explained the mass and spring constant in the ecuation, in an intuitive way, is such a valuable mental exercise. Whenever you see an equation, it's helpful to take a moment and understand in some intuitive way why each value is where it is. Why is time in that equation? Why is something divided by mass? What does it mean for the radius to be squared? In many cases people can work out why these inputs are there, and if you ask them to try and explain how changing that value would affect the result, they'll frequently get it right, even if they can't explain why they're right.

@melodymathilde443 2 жыл бұрын

I really hope you do more of these series. This is so helpful for ppl who can't learn in traditional environments

@minhaak7144 3 жыл бұрын

U are transferring ur curiosity, enthusiasm and energy with the viewers too. Curiously waiting for all your lessons

@MitzvosGolem1 3 жыл бұрын

Excellent, thank you. Took this in physics 1980s a good refresh. If I recall pendulums that swing North to South become figure eights do to rotation of Earth vs East West stay straight. Dr Feynman had a lecture on this as well as Dr Julius Miller.

@saranyadas5522 3 жыл бұрын

Really amazing,this series is amazing,thank you very much

@FuncleChuck 3 жыл бұрын

As an acoustical engineer who adores your channel (and Simone!!), thank you so much for this episode!

@nickush7512 3 жыл бұрын

Spectacular educator. Dianna, so much appreciation. Loving what you do and how you do it :)

@elsa0629 3 жыл бұрын

You make the concepts easier to understand!! It's awesome 😍

@AKARSH_VERMA 3 жыл бұрын

thank you. You know what I was preparing for my exam and your video helped me a lot. You people make learning fun a lot.

@johnnymos 3 жыл бұрын

if only my english would be better. Loved physics at school. Later I became a car mechanic. But I never had technical physics english. Thank you so much, @PhysicsGirl, for giving me back the thrills I had in physics lessons.

@scootskute 3 жыл бұрын

@23:46 this statement is partially true. There is no acceleration related to the simple harmonic motion, so for the purposes of demonstrating this principal the statement is absolutely correct. Still, there are two components that make up accelerating that we feel at the bottom of the swing. Because we feel them we should understand why we feel acceleration that is not directly from the simple harmonic motion we are discussing. First, gravity is pulling us down while the rope/chain is holding us up. We feel this every time we are at rest, so it might be easy to miss. This accelerating causes the motion of the swing. Second, the centripitalal acceleration at the bottom of the swing is pulling is in the same direction as gravity, adding to the tension on the rope. The total accelerating is calculated by adding the two mg + ( v^2 / ρ ) Mass times gravity plus velocity squared over rho, where rho is the radius of the swing or the length of the chain. The higher we swing the more of this we feel.

@digitheadRex 3 жыл бұрын

Great job Dianna. You really know how to attack the subject in an engaging manner. You make absorbing the information fun. One minor detail: Big Ben is the largest bell in the carillon. The clock is the Great Westminster Clock.

@pratikshinde2121 3 жыл бұрын

I subscribed this channel because you were sharing some information that I didn't knew. But from last couple of months you are just uploading videos containing information that I learned in Highschool itself.

@anshraii2670 3 жыл бұрын

mam your way of teaching is awesome ,just mixture of fun ,seriousness and also your voice is best

@pierreabbat6157 3 жыл бұрын

The other function whose second derivative is proportional to itself is the exponential. That's what you get (in the small angle approximation) when you start the pendulum at the top.

@-isi-1158 3 жыл бұрын

My class did this lesson and the previous one switched 😬 wish I’d had this yesterday before my exam 😔

@kawthar464 2 жыл бұрын

I've got a midterm test in mechanical oscilations this week, this is just so helpful

@mitchellfolbe8729 3 жыл бұрын

I really enjoyed the lesson. Well done. Also, I'm glad that writing on paper still has a place in learning.

@math_the_why_behind 3 жыл бұрын

Thank you for deriving each formula!

@kevinreardon2558 3 жыл бұрын

You can use pendulum based clocks in Space as its not really "zero" gravity, you just don't have a dominate gravitational force to use. We also haven't developed the mathematical model for such a clock .

@math_the_why_behind 3 жыл бұрын

And now we have the cow attached to the string :) I love seeing the different cows in different ways :)

@sarthak8802 3 жыл бұрын

6:01 mathematicians crying in pain

@FlyingSavannahs 3 жыл бұрын

Physics Girl: Hey, check out this Foucault pendulum! Oregon Convention Center cleaning staff: Uh, Lady, you gotta go, I'm tryin' ta mop here.

@clonecommando6575 3 жыл бұрын

I wish I found these videos while I was taking my physics classes for the past two semesters XD It's a great review though. Also after taking my final physics class and first calculus class at the same time this past semester I think it is super important to take calculus first!! It makes things a lot easier to understand if you know how to use a derivative!!!

@siddhartharao4272 3 жыл бұрын

Thank you you are just amazing I was just taught simple harmonic motion in school but I didn't get that but now I understood it.

@alborzalborzi3845 3 жыл бұрын

Very well presented Dianna. By the way, I have a question for you. Could you please introduce some reference books that you have studied for preparing these presentations ? It would be very kind of you. Thanks in advance.

@briocon7 3 жыл бұрын

You’re doing good work. I admire your passion for this stuff. I don’t understand all of it, but maybe in time I’ll be able to wrap my head around it all.

@briocon7 3 жыл бұрын

I’m sorry.

@kumarvishalben 3 жыл бұрын

I needed this for my college education. Thanks 👍👍👍👍👍👍👍

@noefarias4351 3 жыл бұрын

I haven’t finished the video but is this like gravity, where a hole through earth would cause one to land on their feet but without landing one would end up in the center of the planet eventually???

@djttv Жыл бұрын

Now I want to go see the world's largest faucalt pendulum, and measure its period of oscillation, and calculate its length. Thanks for showing that!

@NewMessage 3 жыл бұрын

That title would be a great band name.

@twothreebravo 3 жыл бұрын

PG: "Why does changing the mass and the displacement height o0f the object not change the period but changing the length of the string does?" Me: "Physics!"

@staypositive4358 3 жыл бұрын

Cars have a harmonic balancer designed to reduce vibration and keep things running smoothly. Interestingly, the harmonic balancer in cars is round and uses rubber to absorb the vibrations.

@uh60av8er1 3 жыл бұрын

Oddly enough so do modern helicopters

@staypositive4358 3 жыл бұрын

@@uh60av8er1 . Is it also for the engines or does it have to do with the rotor for the blades?

@Mikidy303 3 жыл бұрын

You're smart! And smart is awesome! Thanks for this video!

@putrefieddocs8320 3 жыл бұрын

this went one step ahead of what I understand at the moment

@kabirizaman4806 3 жыл бұрын

Can you please explain about the chapter"work and energy"

@rivertam1921 3 жыл бұрын

To quote "how bout them apples, I got her number" just like these physics numbers.

@sarthak8802 3 жыл бұрын

Loved this lesson 😁

@Omnifarious0 3 жыл бұрын

If your pendulum weight was made out of stabilized neutronium, it absolutely would have an effect. Of course, no string would be able to hold it. So, the weight of a pendulum does have an effect, albeit an incredibly tiny and essentially immeasurable one for the typical weight of a pendulum on Earth. You're really getting into the nitty-gritty with your lessons, and regardless of my peanut gallery criticisms, I think you're doing a good job with that. Thank you!

@melodiousmag 2 жыл бұрын

You are amazing! Thank you so much❤️

@deepakjoshi823 3 жыл бұрын

Ms. Dianna, Could you please make a video on Usage of Laplace Transform and Fourier Transform in Physics? It would be a great help for me for gaining motivation in "Mathematical methods"(2nd paper of my BSc 2nd year 3st semester curriculum, 1st is that "Bloody cumbersome Algebra"😡😁). Please Please Please!🙏🙏🙏

@Life_42 3 жыл бұрын

I Love Your Classes!!!

@tarunpal9622 3 жыл бұрын

Thank you very much Dianna mam for this, We are not thought like this in our school...

@prabandhdalai 3 жыл бұрын

Your intro is awesome mam 😍

@1kdurant 3 жыл бұрын

You make it fun! I like it!

@bonchonjonjon 3 жыл бұрын

I've been aware of the bowling ball experiment from Feynman, I know it works, but I would still be hesitant to try it LOL.

@zekt98arius 3 жыл бұрын

problem 1 solutions A. 3.976m B. 9.724s

@_rizaeka 2 жыл бұрын

This was our case study back on our freshman days!

@harsht6583 3 жыл бұрын

You are doing something amazing

@nethaeriusonno1964 2 жыл бұрын

Dianna love your channel and I have a question, is the internet harmonic motion??? 🤔

@khaliqbakhshkbr2969 3 жыл бұрын

I am doing my Bs physics at university of karachi_pakistan so you very much helpful for me.thank you

@g6zyd 2 жыл бұрын

55 years old and re-learning is fun too.

@christaylor553 2 жыл бұрын

Geez... it's my 6th-grade math teacher crush all over again.

@pingnick 3 жыл бұрын

Physics! Nice yeah military guest whoa🤯 you mentioned simple harmonic motion I believe in a tweet a while ago🤯🤯

@motsregor3723 2 жыл бұрын

AWESOME STUFF THANKS!!!!!!!!!!

@-_IT_- 3 жыл бұрын

I'm still trying to wrap my head around the fact that mass has no effect on the period.

@zekt98arius 3 жыл бұрын

there is also the experiment in which a feather and a hammer, after being dropped from the same height, hit the ground at the same time

@Hakingdoesgames 3 жыл бұрын

@@zekt98arius Feather would probably not work due to air resistance.

@anikaitmishra4704 3 жыл бұрын

can you solve the shm questions given in the indian physics textbook for class 11

@janneusmaala6414 3 жыл бұрын

I recall one of my 4th year physics professors say that an undergraduate degree in physics is basically you learning “Harmonic Oscillations” at increasing difficulty and complexity. 🤣

@sschmidtevalue 3 жыл бұрын

Thanks to Simone, you're now only two degrees from Adam Savage. He'd be an interesting guest on an episode of some kind!

@radha94 3 жыл бұрын

What is singularity could you please make a video about it

@Terrain239 3 жыл бұрын

Did you try to take slinky by one end, wait till it calms and then let it fell? (And watch it in slow motion?)

@patrickmeehan6856 3 жыл бұрын

20:38 Big mass = longer period. Forgive my not connecting this dot with the entire derived equation which told us that the period does NOT depend on the mass of the object. I love these videos. I am relatively new to them and maybe don't know this particular quirk, but why does she have that round table? It's not very good for writing on paper that overlaps its edges.

@the_hanged_clown 3 жыл бұрын

I understand some really real buildings use similar pendulums to dampen the wind-sway. do you think employing a tensegrity structure could accomplish the same thing?

@1.4142 3 жыл бұрын

When is electricity and magnetism unit coming out?

@anilsharma-ev2my 3 жыл бұрын

How tangential force affected hypotenuse and base as the perpendicular going to reduce simultaneously ???

@vm-bz1cd 3 жыл бұрын

Awesome! SHM is SO fundamental to all of physics 👏

@souravthakur4123 3 жыл бұрын

I really love your videos ever

@davidwilkie9551 3 жыл бұрын

Simple Harmonic Motion, the basic Mechanism of Holographic Modulation Superspin. Calculus is the derived AM-FM Timing-spacing rate of change of pure relative e-Pi-i sync-duration motion that specifies the Temporal Superposition Singularity positioning in holographic QM-TIMESPACE. The AdS/CFT explanation is another aspect of wave-particle Quantum-fields Mechanism based on constants/mathematical intuition, much like observing the Foucault Pendulum in its own orthogonality. Ie Observe, timing period and lenght->spacing, ..mathematics related reciprocals of Real Numbering in e-Pi-i-numberness Quantum-fields.

@jeffreybout 3 жыл бұрын

If you wonder why the French gave the meter its length so the path around the Earth would be 40,000 km... The French also wanted the 360 degrees circle to be replaced by a 400 degrees circle. If you do that, travelling 1 degree in latitude.... corresponds to 100 km! (unfortunately, the 400 degrees circle never became the standard)

@jigneshagrawal6597 3 жыл бұрын

Did you cover rolling motion

@theevilmathematician 2 жыл бұрын

The definition of a derivative can only hold if a function f(x) is differentiable and for every ϵ>0, there exists a δ>0 such that |x−x_0|

@Mona-yj9gj Жыл бұрын

I enjoyed your class

@amalendupanda8993 3 жыл бұрын

Awesome video

@BrAjeshxuz 4 ай бұрын

Thanks 👍

@VishnuSharma-wu6mw 2 жыл бұрын

Today I did correctly got what a derivative is ! Such a relief

@arulgupta1639 3 жыл бұрын

can you pls solve a few problems that i have. i tried to ask many but they sadly aren't able to explain or they don't know the answer at all..pls

@bobjackson6669 3 ай бұрын

Great video.

@udnsosbx2771 3 жыл бұрын

In that big ben example won't the increase be along width? Can anyone explain me that big ben pendulum thing?

@reinq_5584 2 жыл бұрын

BRO JUST HAD AN EXAM ABOUT THIS WHY DIDN'T I SEE THIS EARLIER I understand your explanation better even though I'm not native to english and my school obviously don't use english

@abdurrehman4932 3 жыл бұрын

Hey wanted to ask the difference of the syllabus of Ap and AS

@daftphil9706 3 жыл бұрын

My head just exploded. Clever lady!

@GlobeEarthMike 3 жыл бұрын

23:53 You are the best assistant for a magic show!! :)

@quark9574 3 жыл бұрын

Can anyone explain me why static friction is involved in equation of circular motion not kinetic friction. It seems like kinetic friction should act because the object is in motion.🤔

@LeonorPalazzo 3 жыл бұрын

If it is rolling without gliding it means that the surface of the ball is not gliding against the ground, if this is what you're referring to. So at each instant the static friction "pushes" forward / rolls the ball. If you think of a ball on ice or something with no grip you can imagine that there would only be gliding and no rolling. Hope it helps!

@quark9574 3 жыл бұрын

@@LeonorPalazzo thank you so much! Now I got it.

@radha94 3 жыл бұрын

In relativity there is no gravity force . Then why do the object fall down??

@ravibhosle8478 3 жыл бұрын

❤️,heart to physics ❤️❤️❤️,Hearts to physics girl ❤️❤️❤️❤️Hearts to veritasium

@davidcampos1463 3 жыл бұрын

An additional postscript you might offer is: A historic failure to observe this law or a historic inadequacy of precision.

@loganpark4346 3 жыл бұрын

I am new to this channel! I came here after watching It's Okay to be Smart.

@loganpark4346 3 жыл бұрын

So far this channel is great.

@stevesastrohowardkings2245 3 жыл бұрын

At 25,000 miles hour what's The psi of the speed of Wind resistance of rocket ship to believe We have left Orbit material silicon nitride Compression strength 400,000 psi Pascal's ?

@keshavb3128 3 жыл бұрын

I love physics!!!

@radha94 3 жыл бұрын

In relativity there is no gravity force then why do the object fall down?? U may say it's due to space- time curvature . then if we take away time dimensions do object fall down?? Please answer my questions