Hooke's Law and Elastic Potential Energy

[@TheOrganicChemistryTutor]

Work & Energy - Free Formula Sheet: bit.ly/408Zp51 Direct Link to The Full Video: bit.ly/3GbVTem Physics 1 Final Exam Review: kzbin.info/www/bejne/eajOmal8obN5ppI Physics PDF Worksheets: www.video-tutor.net/physics.html

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How can I access the practice problem

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You're saving lives out here, in a world where lecturers don't teach us well enough

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Or bunk classes 🥲

[@Ulysses_Gaius]

Facts!

[@maryammohamed8185]

in a world of greed, where teachers only teach for money

[@BoneStack117]

High school teachers ain't in it for money dude

[@cbgaming7209]

Once emailed my online paid for class teacher as I was struggling with the materials. They sent back "I see you are having trouble, review the materials I gave you". Like my high school teachers during covid did better by offering a zoom meeting to go over stuff and they got paid less!

[@alejandromartinezcrespo2676]

you are better at explaining in Phys and org chem than all teachers I had.

[@keylime6]

My physics teacher teaches my what, but you teach me why. Thank you, organic chemistry tutor. It all makes sense now

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WHEN I HEAR THIS VOICE i KNOW mY TUTOR IS HERE TO MAKE LIFE EASIER

[@theflashclashroyale1245]

I HAVE A TEST in 2 days on these concepts. Thank you so much for always being there, you are truly an underrated educator. You have carried me through 6+ years of math, including AP Statistics, AP Calculus AB(as of now), AP Physics, and Chemistry. I honestly am glad that there are people like you to make online school so much easier.

[@Mira-bi4ts]

How did you do on the test?

[@theflashclashroyale1245]

@@Mira-bi4ts I got a 93% :)

[@dotnask0001]

@@theflashclashroyale1245 Archer queen passed her test on Hooke's law.

[@josepharce5218]

Such an awesome teacher! You are so much better than a textbook lol

[@颜嘉仪]

Thanks man. You're seriously a life saver. I'm in middle school right now and I wished I'd found you sooner. Better late than never, this is great....

[@williamhu9567]

Late? Either you’re a studious one or the Canadian education system sucks, cause im halfway through high school and just learning this.

[@aeror130]

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[@Rave_07]

​​@@williamhu9567 bru you haven't seen asian education system yet. Canadian education system is much much better.

[@amahlembele8615]

You are god sent. I mean how is it possible to understand a whole chapter in less than 30 min.big ups bro.

[@WintaHaile-w7q]

I see this video 8 hours before my exam I feel relief you are the best thank you very much ❤❤❤❤love you 😍 💋 😘

[@颜嘉仪]

Oh my god. Actually a friend of mine recommended your channel but I didn't make the time to watch just until now. But really, I never knew the topic that I was weakest at would become my strongest topic in what, 29mins 29 secs god....the thing I spent days contemplating on got solve within less than half an hour.....

[@adeyemosimon2407]

Having exam tomorrow and how teacher never taught but this man is so perfect for it..... Good 👍 job sir

[@sonjadule2993]

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[@trinohead]

bro i love you your the fking god my main exams are coming soon and from your help now I'm pretty sure ill get a good grade in my exams i really wanted you to help with maybe joining your patreon or such but I'm just student and i don't earn any money so for that reason i couldn't join your patrion to support you I'm really sorry about that but remember bro i love you soo much you helped me a lot i will always remember you. bro your physics explanation are in next level the topics i didn't get it for years i understood them by watching your videos thank you sooo much ❤❤❤❤❤❤❤❤❤❤

[@fairarizkiano3845]

abang you really helped me through final. i had chem final yesterday and i watched your videos, most of it showed at the exam 😭😭😭 you really helped me, thank you. i hope you always have a great day

[@ethanosprime6386]

I’m about to put on an academic performance like never seen before

[@ToxifirateGaming]

i have a question. in the video at 15:37 why didnt you multiply delta(x) with k? bcuz i know that u have to multiply with every variable inside the bracket

[@Al-Suzuki]

In 8:51 question all I did is put the table just like you did. I multiplied 250 with some numbers until I get a 900N so I got it after like 10 seconds of plugging different numbers, it was multiplying 250 by 3.6 to get 900. Then I just multiplied 0.24 by 3.6 and got 0.86m 😊

[@that-k6u]

Provided the elastic limit is not exceeded, the extension in an elastic material is directly proportional to the load or applied force. (Hooke's law)

[@SarcasticLampr4y]

Thank you so much, we are doing this right now at University in Australia :D

[@kenny_editts]

I had an emergency assignment to be submitted this morning, you literally saved my ass bro 💪🏼

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Can’t help but admire your work

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Hey God, please bless this man.

[@gloryikuku8621]

I love your style of teaching because you give us everything ie the principles behind every law and it's applications

[@osmanaltanyuksel1884]

17:57 dont we define the change in X as Xf - Xi ? when we make (Xf - Xi)^2 , doesnt it have to become Xf^2 +Xi^2 -2Xf.Xi ?

[@EMNE-zi3]

THANK YOU! i wish u all the best

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his voice is charming like ASMR and it's relaxing

[@etzjunior_]

Focus on the damn topic ffs. Tf

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Nice video! I love you!

[@godwinchongo5946]

Good job.. he's really calm and understanding...how I wish we had such lectures

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I have tomorrow the year's end exams and I have this lesson but whatever I have done I couldn't understand it but now it feels easy, good job man

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DAYUMM this channel is a life saver.

[@yasminebenlakhal7168]

How did he know I needed this today

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The goat has done it again

[@Wendoc]

can the same theory be applied if we press the spring ?? How ever as everyone else say you are truly a life saver

[@EnclaveHater07]

Me not understanding any single thing this dude is saying but enjoying his voice and learning: *I like your funny words magic man*

[@box9283]

Keep up the amazing work sir!!

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This is so amazing bro

[@mulubelay4481]

You are the best. I've question though , is physics always easy like this?

[@imqr]

not really, whenever you get to nuclear physics and quantum mechanics it becomes pretty difficult for most people

[@MrYahya0101]

x and delta x have been used interchangeably in the video, which makes it confusing. If x is assumed to be the distance between ends of spring, then F=-k*(delta x), W=-1/2 k*(delta x)^2.

[@understandingart9961]

Yes very confusing part because x is usually the strain caused by the stress so how they can be used interchangeably. If x is total length then using ∆x makes sense

[@DavidStaller-r4j]

Thank you brother ❤❤

[@GyeonghunPyeon]

일반적인 이해를 위해서는 어떠한 물체의 운동을 설명할 때 이 물체는 어느지점에 있다. 여기있다. 저기있다. 등의 설명을 필요로 하지만 이 영상에서 소개하는 훅의 법칙을 통해 진동하는 물체의 위치를 기술하는 방법에 대해서 또 한가지 알아갑니다. 감사합니다.

[@mulubelay4481]

When he see this , I am glad it says good work. ; right?

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Me after seeing this video again after years: "Why haven't I subscribed to this guy yet?!"

[@williamsojah8402]

Thanks so much, am having exams on strength of material tomorrow

[@jay-koh-sahn]

Thank you very much. I've been finding out why (-) has been included in this fooking Eq...

[@swaralivaze6516]

omg this was very helpful thank u sooo much

[@frossbyte1292]

We had this new lesson today for physics and I still couldn't understand. Thx to this vid I can now :) You're the best!

[@Naztiapee1788]

Fr

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Physics for this man like playing game 👏👏👍

[@imbisatfajjar]

nice vedio i have been watching since i was in grade 6 and i am in nineth grade

[@LarryLovestein23]

Just got our "specific topics" for Wednesdays exam. You got the first 2 out of 8 so far lol

[@DO_CHE]

16:51 doesn't work equals the change in kinetic energy and not the potential energy ? So it would be W = PE = 1/2 F x

[@Lisa-ux1hr]

I love how he says length. “Lenf”

[@hike8932]

for 4th question just do fp=kx then w/2 = fs where f=fp and s = x so fp= kx == 250x0.75 == 187.5 187.5 x 0.75 = 140.625 / 2 therefore work required = 70.3125 J or 70.3 J

[@E75-m1v]

I have an exam in less than an hour this saved my life thanks

[@mathewsngwewa6258]

Amazing works 💯.

[@njelekaharriet6107]

I always fail to understand why you are so good when ever am watching your videos.i have a question, why is a spring balance used to measure weight but not mass?

[@iasserz]

bcuz it is related to force

[@njelekaharriet6107]

@@iasserz 🙏

[@eryna4nal]

Maths wizard😮😮

[@mubanganyambe1723]

Thank you very much for your clear explanations

[@onelaperera7936]

at 16:17 I can't understand how when the acceleration is 0, the work done is equal to the potential energy change, can someone please explain ?

[@yuvalkoren4070]

It has nothing to do with acceleration, there are numerous ways to calculate the force exerted that don’t include acceleration. If work is equal to force times distance, then the force is equal to the work applied divided by the distance.

[@onelaperera7936]

@@yuvalkoren4070 Thankyou !

[@billycheung5114]

Nice video 🎉

[@AnimeFun4ever]

Thanks as usuall

[@khaledhasan2814]

Great explanation Sir!

[@RF-ww5gc]

thankssssssssssssssssssssssssssss god bless you man!!

[@attataqi923]

Big teachr 💯👏

[@markbooe205]

Elastic Potential... pretty cool 🙂

[@chongongonga3271]

Thank you

[@nooraZhao]

I have one small question: Why doesn't work done equal to the negative change of potential energy, which is represented by W=-deltaPE. I remembered that this is what my teacher taught me.

[@Adembtr6704]

16:52 what if acceleration is not 0, I wonder if f net is always 0 in this law?

[@Adembtr6704]

if the acceleration is not 0, does the total work equal KE + PE?

[@Adembtr6704]

if it is equal how do we find KE?

[@u-can-academy]

Thank you 1000000x

[@dritanmuslia6922]

At minute 22:58 why is ΔX² = (Xբ² - Xᵢ²). I don't really understand the logic behind it, it seems more plausible for it to be (Xբ - Xᵢ)². Can someone please explain?

[@gabrieldayot4921]

Delta X squared means X^2 - X^2 (Delta X)^2 means (X^2 - X^2) So the difference is the parentheses

[@HeavenlyManna03]

I'm a bit confused abt the last part involving the Work done by the restoring force, I mean initially when the applied force is stretching or compressing the spring to a certain, I have the belief that only the applied force is stretching the spring, not the restoring force, I hqve the believe the restoring only acts when the spring is returning to its natural position , and then the displacement (opposite to the stretched displacement) and the restoring force are in the same direction, so I'm confused how it's work done by the restoring force is negative, to me it feels its should be +ve.

[@erlinghaaland975]

Thanks man.

[@AndrewTiitii]

2024 best tutor ever😭

[@fitzgeraldgerundio8123]

How will you find x if the only present is the mass?

[@donut2232]

thank u 🙏

[@tonidaluv2224]

So what is the exact formula for spring force? Fs = -kx or Fs = kx? I'm so confused by the negative sign :((((

[@emekaamadi8450]

at 16:15 why isnt the force negative? isnt it 1/2-KX^2?

[@AMLennon]

Elastic Potential Energy (PE) = 0.5kx^2. The unit will be N/m • m^2 = Nm = joules. Energy is measured in joules. Note: 1 joule = 1Nm. However, the restoring force, F is measured in N.

[@memt3442]

its not in the same direction with force thats why it is positive

[@ali32bit42]

soo funny thing ... i dont actually need this for school. it feels strange to come back to the physics we learned at school because we have found a practical use for them ! normally as a kid youre like "this is useless i am never using this in real life !" but now its completely differant . i genuenly need this for something ! . i am currently programming a car physics system for a video game and cars have springs for their wheels. in order to simulate car springs i need to know exactly how those physics work and implement the math into my programming. i wish school was able to teach us about practical uses of math and physics like this more often. that way we at least care about what we are learning because we know what we want to use it for . but no its always vague and abstract boring concepts that we dont know how to use.

[@jordansamuels7187]

Same boat bro, I'm currently studying engineering in game design, and a lot of physics is involved in games

[@dismaleclipse5587]

There is a mistake on question 6; you multiplied 1/2k by the difference of the squares of x rather than by the square of the difference of x. Cheers

[@understandingart9961]

If k is a constant how it's value can change from spring to spring

[@demonrhythms8761]

Thanks buddy much importatnt

[@mulubelay4481]

U saved my ass again.

[@Mori_mee]

[@bonganimathokgwane9642]

Springs in parallel and series plz

[@canelaflorin2844]

So for problem nr 7 (which we see a glimpse of it at the end) i got: a) 490 N/m; b) 6.272 J; c) -12.544 J; d) 40 cm. How far was i?

[@sarahnaji7563]

c should be 11.392 i think because we use the formula Ug=mgh how did u solve d? i hope u still remmber after 5 months

[@nadahosny3595]

@@sarahnaji7563 lol

[@aj28b2xe16]

ولتعلمي يا فتاتي بأن الذنب لن يأتيك إلا مزينًا؛ فـ تارة تزينه اللذة، وتارة أخرىٰ تزينه سهولة خوضه؛ ووالله إن لذته تلك لتذهب سدىٰ بمجرد الانتهاء منه، فقط لن يبقىٰ منها سوىٰ ندبة سوداء وشمت بحرافية على جدار القلب؛ فـ إياك أن تسقطي وتكوني لقمة سائغة لشيطان رجيم، وإن حدث وسقطتي لضعف مسك، فـ لا تطيلي السقوط وانهضي سريعًا، وآوي إلىٰ ركن شديد، وقري بذنوب اقترفتيها ومنها استغفري، فـ والله إن لم نستوحش الذنوب ونبغضها من أول مرة؛ لاعتدناها وكأنها نعم، فـ لتعيذي قلبك الصغير من أن يألف ذنبًا، ولتعيذيه من شرور الدنيا وفتنة الهوىٰ؛ فـ تالله إن المرء لا يُصاب إصابة أشد من تلك التي تستبيح حرمة قلبه وتأسره.💙

[@Mira-bi4ts]

​@vivansh و ما لغت الاستعمار هذه؟

[@palesahlanyane1015]

This is excellent, thank you 😊

[@maerincy1836]

Thanks😊 But it would be better if you had given an example of spring being compressed vertically😊

[@michaelgeorge1119]

Every time he says hookes law I hear it as cole slaw Hooke slaw 🥰

[@SweetSamaChild]

Question 6 is incorrect 45cm is 0.45m not 0.045m. Therefore the answer is -14.6832J

[@writersblock1016]

4.5 cm, not 45.

[@maryamalsuhail7932]

On #4 can someone explain why we multiply it by 0.5 and what does the triangle have to do with out problem in the first place?

[@Beauty_lord1]

The 0.5 is just the ½ in decimal. It makes it easier to multiply and we need the triangle because the force is varying.

[@tenewn7624]

How can I be your member

[@SeanBunker]

How does the gravitational wave emitting from a planet differ from a rubbee band being stretched out maybe the gravitational field is stretching out some other force than elastic energy stretches out any ideas to prove or disprove this? I need all possible awnsers please no insults those are a waste of time im trying to learn and grow not hear little 2 year olds throw insults

[@martinsanchez-hw4fi]

How do you expand Deltax^2 as x_f^2-x_i^2? You are missing a term, aren't you?

[@thabisonzimande8718]

I thought w= change in KE

[@enriquesoler3150]

for question's 1 and 2, why is the formula: F=kx? Shouldn't it be this: F=-kx, that's what my textbook is telling me?

[@idunuadefarakan6022]

To stretch a spring it’s positive and to compress it, it’s negative

[@derrick8044]

23:29

[@vihashah5975]

Isn't work = - change in potential energy?

[@vihashah5975]

nvm he explains that in the end of the video lol

[@RhythmMithaiwala-w1z]

To good

[@adnanhusain8532]

what is "m" ????