Hooke's Law and Elastic Potential Energy

[@TheOrganicChemistryTutor]

Physics PDF Worksheets: www.video-tutor.net/physics-basic-introduction.html Full-Length Videos & Exams: www.patreon.com/MathScienceTutor/collections Direct Link to The Full Video: bit.ly/3GbVTem

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Facts!

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

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High school teachers ain't in it for money dude

[@alejandromartinezcrespo2676]

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

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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.

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

[@user-ze3vg3zm6p]

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[@williamhu9567]

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

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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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[@assaineindustries]

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)

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[@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

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[@ethanosprime6386]

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

[@godwinchongo5946]

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

[@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

[@user-ze3vg3zm6p]

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.....

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Hey God, please bless this man.

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How did he know I needed this today

[@user-dw8lv6sy2y]

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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[@user-ig3yk3eg2b]

Nice video! I love you!

[@Lisa-ux1hr]

I love how he says length. “Lenf”

[@visaug3680]

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

[@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 ?

[@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!

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Fr

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Thank you very much for your clear explanations

[@Wendoc]

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

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Physics for this man like playing game 👏👏👍

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

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[@jay-koh-sahn]

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

[@khaledhasan2814]

Great explanation Sir!

[@chongongonga3271]

Thank you

[@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

[@AnimeFun4ever]

Thanks as usuall

[@imbisatfajjar]

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

[@maerincy1836]

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

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Amazing works 💯.

[@EnclaveHater07]

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

[@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 !

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

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omg this was very helpful thank u sooo much

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

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Thank you 1000000x

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[@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 🙏

[@samuelogunsina9191]

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.

[@user-zl6lg3uz3r]

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.

[@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

[@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?

[@user-sh1fy9nf4m]

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

[@markbooe205]

Elastic Potential... pretty cool 🙂

[@erlinghaaland975]

Thanks man.

[@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

[@attataqi923]

Big teachr 💯👏

[@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

[@fitzgeraldgerundio8123]

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

[@mulubelay4481]

U saved my ass again.

[@user-kz2tn7yk9z]

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

[@SweetSamaChild]

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

[@writersblock1016]

4.5 cm, not 45.

[@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

[@billycheung5114]

Nice video 🎉

[@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

[@understandingart9961]

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

[@bonganimathokgwane9642]

Springs in parallel and series plz

[@palesahlanyane1015]

This is excellent, thank you 😊

[@demonrhythms8761]

Thanks buddy much importatnt

[@Mori_mee]

[@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.

[@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?

[@lohht7g]

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؟

[@martinsanchez-hw4fi]

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

[@derrick8044]

23:29

[@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

[@michaelgeorge1119]

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

[@vihashah5975]

Isn't work = - change in potential energy?

[@vihashah5975]

nvm he explains that in the end of the video lol

[@adnanhusain8532]

what is "m" ????

[@thabisonzimande8718]

I thought w= change in KE

[@ricaldoritchiebasketballvl651]

Yo did not explain what k and the other formulas meant you were just saying them but not telling us what it really meant

[@mandairaleo4190]

Well its explained here... kzbin.info/www/bejne/fnKvk6evebqdppI

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Molto Gracie

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Real talk 🤔

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ahahsahdsa adam finallere çalıştırıyor bizi

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i didn't understand question number 4

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Am I the only one who thinks he kinda sounds like Ben Feldman?

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wow😻

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I heard a sumsang phone in the background 😅.