Hooke's Law and Elastic Potential Energy
This video provides a basic introduction into Hooke's law. It explains how to calculate the elastic potential energy and how to determine the amount of work required to stretch a spring.
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@AjasaShola-bx6qn
9 ай бұрын
How can I access the practice problem
You're saving lives out here, in a world where lecturers don't teach us well enough
@CarryMinati-iv4gj
Жыл бұрын
Or bunk classes 🥲
@da_real_santander810
Жыл бұрын
Facts!
@maryammohamed8185
Жыл бұрын
in a world of greed, where teachers only teach for money
you are better at explaining in Phys and org chem than all teachers I had.
WHEN I HEAR THIS VOICE i KNOW mY TUTOR IS HERE TO MAKE LIFE EASIER
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
3 жыл бұрын
How did you do on the test?
@theflashclashroyale1245
3 жыл бұрын
@@Mira-bi4ts I got a 93% :)
@dotnask0001
2 ай бұрын
@@theflashclashroyale1245 Archer queen passed her test on Hooke's law.
Such an awesome teacher! You are so much better than a textbook lol
My physics teacher teaches my what, but you teach me why. Thank you, organic chemistry tutor. It all makes sense now
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
Жыл бұрын
Late? Either you’re a studious one or the Canadian education system sucks, cause im halfway through high school and just learning this.
@aeror130
2 ай бұрын
@@williamhu9567 he's probably chinese and we know that the chinese are really hardcore ib academics
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DAYUMM this channel is a life saver.
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)
Can’t help but admire your work
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
I had an emergency assignment to be submitted this morning, you literally saved my ass bro 💪🏼
Great explanation Sir!
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I’m about to put on an academic performance like never seen before
his voice is charming like ASMR and it's relaxing
@etzjunior_
2 жыл бұрын
Focus on the damn topic ffs. Tf
You are the best. I've question though , is physics always easy like this?
@imqr
2 жыл бұрын
not really, whenever you get to nuclear physics and quantum mechanics it becomes pretty difficult for most people
Physics for this man like playing game 👏👏👍
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Thank you
Elastic Potential... pretty cool 🙂
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
3 жыл бұрын
When he see this , I am glad it says good work. ; right?
Thanks as usuall
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
2 жыл бұрын
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
Thanks man.
Nice video 🎉
Just got our "specific topics" for Wednesdays exam. You got the first 2 out of 8 so far lol
Thanks so much, am having exams on strength of material tomorrow
Thank you very much. I've been finding out why (-) has been included in this fooking Eq...
Big teachr 💯👏
Thank you 1000000x
The goat has done it again
Thanks buddy much importatnt
I love how he says length. “Lenf”
This is excellent, thank you 😊
can the same theory be applied if we press the spring ?? How ever as everyone else say you are truly a life saver
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
Жыл бұрын
Fr
@Naztiapee1788
Жыл бұрын
Hfodnadb god so
@Naztiapee1788
Жыл бұрын
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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
nice vedio i have been watching since i was in grade 6 and i am in nineth grade
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 ?
Thanks😊 But it would be better if you had given an example of spring being compressed vertically😊
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.
Me after seeing this video again after years: "Why haven't I subscribed to this guy yet?!"
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.
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
9 ай бұрын
bcuz it is related to force
@njelekaharriet6107
9 ай бұрын
@@iasserz 🙏
If k is a constant how it's value can change from spring to spring
How will you find x if the only present is the mass?
U saved my ass again.
Springs in parallel and series plz
23:29
I have an exam in less than an hour this saved my life thanks
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
Molto Gracie
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
Жыл бұрын
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.
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
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
Жыл бұрын
Same boat bro, I'm currently studying engineering in game design, and a lot of physics is involved in games
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
2 жыл бұрын
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
2 жыл бұрын
@@yuvalkoren4070 Thankyou !
How can I be your member
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?
2024 best tutor ever😭
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
2 жыл бұрын
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
2 жыл бұрын
@@sarahnaji7563 lol
Question 6 is incorrect 45cm is 0.45m not 0.045m. Therefore the answer is -14.6832J
@writersblock1016
Жыл бұрын
4.5 cm, not 45.
at 16:15 why isnt the force negative? isnt it 1/2-KX^2?
@AMLennon
3 жыл бұрын
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
2 жыл бұрын
its not in the same direction with force thats why it is positive
what is "m" ????
16:52 what if acceleration is not 0, I wonder if f net is always 0 in this law?
@bkkkkjhhnkugbj9
10 ай бұрын
if the acceleration is not 0, does the total work equal KE + PE?
@bkkkkjhhnkugbj9
10 ай бұрын
if it is equal how do we find KE?
Isn't work = - change in potential energy?
@vihashah5975
2 жыл бұрын
nvm he explains that in the end of the video lol
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
Every time he says hookes law I hear it as cole slaw Hooke slaw 🥰
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
3 жыл бұрын
@vivansh و ما لغت الاستعمار هذه؟
I thought w= change in KE
Real talk 🤔
senin allahına kurban
@YKSILK-zo3qd
6 ай бұрын
ahahsahdsa adam finallere çalıştırıyor bizi
How do you expand Deltax^2 as x_f^2-x_i^2? You are missing a term, aren't you?
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
2 ай бұрын
To stretch a spring it’s positive and to compress it, it’s negative
i didn't understand question number 4
wow😻
Just your voice motivates me to make discovers (๑♡⌓♡๑)
In the first minute... K is what?
@zahidfaheem3233
2 жыл бұрын
A constant. Force increases linearly with length (more force is required to pull further) and the factor by which it increases is called k. So it's just the relationship between F and x.
Am I the only one who thinks he kinda sounds like Ben Feldman?
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
3 жыл бұрын
Well its explained here... kzread.info/dash/bejne/enWAxNaydLjQoJM.html
I heard a sumsang phone in the background 😅.