Hey everyone! Thank you so much for watching, please check out my channel for more fun physics content. Also wanted to say a big thanks to the sponsors of this video - check out Curiosity box at www.curiositybox.com/Parth and use my code PARTH10 to save $10 on your subscription!
[03/11, 11:26 pm] Abhyuday singh: If in case of planets why should we consider gravitation force as conservation while it depends between distance between two object [03/11, 11:28 pm] Abhyuday singh: Work will different for all planets for their different orientation
Full description of PE would take like 10 more levels. It's sad that these 5 are basically all we need for practical purposes, so teachers never bother to explain it further
I am a highschool student preparing for JEE ADVANCE exam for engeenering in INDIA ..and your videos are quit really helpfull to me ...what my teacher told to me i connect to you and boom the clearest picture of that topic has been saved to my brain ..😁😁
You should join a coaching centre bcoz it it near to impossible to crack it on your own. If u have money problems you can take unacademy subscription or physics wallah .I am dropper because I didn't take coaching in class 11 and class 11 was a nightmare because even in schools they don't teach properly.
@Kelvin are u indian ? If you were, you wouldn't say that. CBSE is the most prevalent board for conducting high school exams. And it's syllabus is from ncert booklet which is especially pathetic in maths less pathetic in physics and kind of acceptable in chemistry(bcoz it's just theory). CBSE exam may not be very low in level as you need to explain why you are doing(unlike competitive exams like jee main and jee advanced where all are MCQ or integer type answers). And jee main and advanced are on another level. It may seem easy to say it's just from ncert it's just "Applications" of what you have studied in NCERT. But, if it was that easy we would have derived laws of motions earlier than Newton. That's why we need coaching here. Plus any engineering aspirant has to give this exam or else they will not get good colleges.
Unfortunately, Jee advanced doesn't need you to understand many things with clear intuition. The videos of this channel aren't for the Jee advanced, they are for beginners who are interested in physics, mostly quantum physics. For jee, you just need to understand what's in the syllabus. For example, You just need formulae of thermodynamics and little bit of understanding of how it all works, you needn't understand with your heart what everything means. You can still watch the videos, but it won't be much help in jee. And jee doesn't have much quantum physics too. Your 11th and 12th grade is mostly classical. If you get into IIT, you'll have more exposure on quantum mechanics. I study at IIT Dharwad and I have quantum physics in both physics and chemistry in my first semester.
Hey Parth, just a Word of Motivation for you-"Love Your Videos and they are the Ones that add just perfect amount of Extra Knowledge which acts as Topping for my Science Studies and Probable Future-so keep Creating these Great Video✌🏻🖖🏻" (Hope you Find this Comment and it Keeps You Motivated!)
Do a block sliding down an inclined plane , I’ve seen something similar but feel you could do better. It could start with a simplified Newtonian description for example an then build up progressively to something like the Hamiltonian. Would be a fun way to see how such a simple system can be analysed from basic to complex methods.
So far the best explanation of potential energy as a concept, but still not satisfying. If I'm standing on a mountain, I have some potential energy. If I'm standing in the valley, I no longer have this energy...but if someone starts digging a hole in front of me... I'm gaining potential energy??? To be fair (and that's why your explanation is the best so far), you did mention that potential energy is not really stored in the object. But clearly, potential energy is situational, virtual, and therefor not real. Why doesn't anyone explain that???
WOW! Really wonderful. Would love to watch the further levels of it. As far as I guess, I know things till level 6. But what's 7 (or beyond), would love to watch.
level X question: you explained conservative forces doing work as the gradient of a scalar potential, but what about forces that don't do work but are the cross product of velocity with a curl of a vector potential (Magnetism, Coriolis)? What is a "vector" potential anyway. Why so many cross products?
A very interesting and informative video, indeed. Thanks very much, well done again. Taking PE theoretically to a further level is well worth it. So, go for it please for the sake of many of your viewers.
Great as always. I was slightly surprised that in the examples of PE you stayed entirely within abstract examples when there is a very relatable practical one - hydro-electric power stations especially ones like the site in Wales where they use off-peak electrical energy to pump the water to a mountain-top reservoir storing GPE then releasing ir on demand through the turbines to get "new" electrical energy as the GPE is converted in the fall back to a lower level. Losses ignored of course.
Well, as a physicist, these examples are the most relatable one. Because, they solve it using Newton's laws, all the way upto using Hamilton-Jacobi equations. I understand why he chose these two systems.
Even as a kid i always felt like i didnt fully get potential energy, and thats still the case with a far matured understanding of physics, im looking foreward to this video
Definitely want a more in-depth video. We were still considering potential energy as "stored" energy at the end, despite it being a problematic term and one my brain doesn't really like somehow.
I am concerned about this "arbitrary energy level" and General Relativity (GR)… In GR, energy generates curvature, and curvature is an invariant (e.g. the curvature scalar). How could the generator of a thing (energy) be arbitrary, but the generated thing (curvature) not be arbitrary?
It's not "arbitrary", it's _relative_ . If you have a system containing potential energy in a box floating in the middle of a galactic void, and you measure the mass using gravity of the box and its contents, you will get a mass that includes the potential of the system. If you let the device release its potential energy and you let that energy escape the box (say, you heat up the box and then let it radiate away massless photons), you'll get a smaller mass now and the battery, spring, or whatever it was reads "zero", because that's how far it was designed to discharge. If you let it discharge further, say, by letting it damage the battery so it can't be recharged again, or letting a mainspring out of its case so it unwinds completely straight, then you will lose even more mass. And by the measure of the original storage device, if it were still working, would show a negative value. There _is_ an absolute amount though. In the case of gravitational potential energy, there is a limit as to how deep you can dig the basement and allow the ball to continue to fall. The ultimate limit to gravitational potential energy is to drop it into a black hole with the mass of the Earth. For the battery, you can imagine reacting the chemicals into even more stable compounds (e.g. burning the battery). Ultimately, anything made of normal matter can be transmuted into lead, releasing the maximum nuclear energy. And even then, it still has mass, but it's the lowest you'll be able to get it to drop without changing the conditions or introducing something else.
Great video! Even though I was familiar with most of what is here, it gave me the realization that PE is a CONCEPT. Which means that it can be applied where it works and dropped where it doesn't. I used to look for a specific place (on molecular, atomic, subatomic levels) where PE is stored. Now I realize it mostly doesn't work that way.
Space and real particles are made of virtual particles. Higher density space has more potential energy, therefore objects move from higher to lower density space. The space between similar charges or magnetic poles has much higher density than opposite ends causing the charges and magnetic poles to move away from each other. Similarly space density between masses is also lower and objects movetowards each other. Spring when compressed is denser and moves outward and when stretched less denser and moves inward.
I would love to see more videos about the concept of potential energy, i am an undergrad in physics in the middle of the course and i still struggle with this, right now i'm taking classical mechanics and this is quite trick to me idk why
I also think the video about PE as a theoretical tool will be a good video. As many levels as are necessary to describe the fundamentals of a subject should be fine, you might as well let it be variable. If you were ever interested in doing videos that describe levels of theory compared to levels of application that would be invaluable as well. All in all 10000 thumbs up!
Please do an deeper video regarding PE. I've came to this video searching to understand some conceptual issues with PE but the video did not went deep enough to answer them.
This video helped me relate better to the concept of PE, but it feels incomplete (as you too said by the ending). It will be more satisfying (at least for me😅) if you make further videos related to PE. Also, I always enjoy the content of this channel😊.
His explanation of the form of the elastic potential energy was unsatisfactory. I'm going to have a go at it. First this is a non-calculus based derivation. In other words, no integrals will be harmed i tis derivation. Starting with the concept that the work done on the spring will be the "stored" energy, i.e., elastic potential energy. I. NON-CALCULUS 1) The distance is simply x. 2) The force is the force the spring exerts which is kx. F =kx 3) You might be tempted to just write W = Fx = (kx)x, but there is a problem, the force changes with length. at x = 0, it is zero, at x it is kx. Luckily it is linear so we can use the average force. That would be just the plain old average, (0 + x)/2 = 1/2x 4) So now we get W = (1/2kx)x = 1/2kx^2 II) CALCULUS For those of you able to do Calculus, you would integrate the equation (kx) dx, the integral is, of course, 1.2kx^2 (the integral of xdx is 1/2x^2. Integrals are used to calculate area so this ties in with the next approach. III. VISUAL You can also do it visually. If you draw a rectangle with horizontal length equal to x, and height (vertical) equal to F, then area of the rectangle is Fx, work. That would be the case for gravity, the force is mg and the distance is h. The spring is different because the force increases steadily from zero to kx. In this case we have a right triangle with base x, and height x. The hypotenuse is the line F =kx. The area of a triangle is 1/2 base x height, so we have 1/2(x)(kx) = 1/2kx^2. There you have it, take your choice, Wayne Y. Adams Retired Physics Instructor (33 yrs. teacing)
Bhai ...I just wanna say your videos are awesome...can you make videos which can specially help jee and neet exam students...and if you launch a physics crash course for jee and neet students... it will be the most useful content for us... IT HAS ONLY 29 CHAPTERS TO DEAL WITH....plzzz BRO 😊😊😍😍
I would like to see the other video. I always want to learn more. If you did set your arbitrary h = 0 at the top of a cliff and threw a ball off, it gains KE and loses PE then hits the ground and the KE dissipates into the surroundings(sound, heat, etc) but it still has a negative PE??
bro i actually like your videos that explained about black hole standerd equ...i need to know about the equation m theroy..could you explain in upcoming videoes
Respected parth g,We calculate energy per unit volume of electric field of electromagnetic waves with capacitor arrangement...I tried really hard to understand why do use, energy required to charge the capacitor and we divide by volume of capacitor to calculate energy per unit volume of electric field.... they say the energy is stored in electric field BUT the energy gained by an CHARGE Q in electric field depends on magnitude of Q; (ENERGY GAINED=Q×Electric field×Distance moved in E field;) then how can we predetermine the energy of electric field per unit volume??(1/2)CV^2 and (1/2)Q^2/C...It's just the energy required to make the E field in capacitor HOW CAN THIS BE EQUAL TO ENERGY GAINED BY AN CHARGE Q IN THAT FIELD?? CAN YOU EXPLAIN ENERGY PER UNIT VOLUME OF E AND B FIELD INTUITIVELY WHAT DO THEY MEAN??
Clarify what the K.E. of a ball is after a pitcher imparts speed to the ball. To a distant observer, the ball has K.E. before it is thrown. To him, the ball speed is a sum of rates: Earth's orbital movement, Earth's surface movement (spin), Sun movement, and Galaxy movement. So to a distant observer, the ball has more energy than what the pitcher knows about. The pitcher on Earth assumes that everything that is not moving with respect to the inertial frame he rests in, is zero ball K.E. That's just like the distant observer. He would use the total speed of the ball to know the K.E. of the ball compared to what K.E. the ball has when nothing is moving within the distant observer's larger inertial frame.
The real problem starts when you try to explain and apply field theory to potential energy and deny the luminiferous aether. Light speed is a constant in vacuum because it is just a rate of induction and the aetherial field have entangled distributions. Potential energy is mostly a matter of gravitational acceleration, the gravitational effect we see is just a mix of an incoherent magnetic field and buoyancy.
@@bullpup1337 For as long as you don't open your mind to critical thinking and do some research plus experiments you will always limit your understanding of the universe. You don't need to be always right, but question everything. This is simple: explain what is a field, how and why it works. A real explanation, not the canned description made in books and presentatations. Do the same with mass, force and momentum. You can't, mainstream can't. They are philosophically compromised.
@@1969nitsuga We cannot explain everything yet, and might not ever. But we can explain a lot. Mainstream isn't always right, but you need very good evidence if you argue against it. Do you have that?
Sammidha jana Actually the photons do not travel through space, hence no velcity with it.only the 'h' is transfered one place to another just like electrical conductivity. Photon pairs are produced and annihilated through out the path. Mass of photons do not increase! When a material body moving through space it's mass increases with it's velocity that it can never reach the velocity c in any condition. When a body falling to a black hole what ever the acceleration its velocity should be less than c. It never equals! I really understand your query mind ,appreciate it,doubt every thig, wish you all the best.
Great explanation sir✨☺️...pls make a vedio on current electricity (specially in kvl and kcl)...if you have any time then Absolutely make an TH-cam shorts🙏🏻....pls help me ,i can't visualize kvl by using basic machanics...why there we allways consider 2 or more than 2 different loop current but actually this different loop current are not exist in reality at that circuit .my teacher says that this is the moat difficult topic in our 12th standard physice to visualise
hlo sir , What is the reason behind INTERFERENCE pattern produced by light when passes through AN NARROW SINGLE SLIT ? Does sound waves or water waves produce single slit interference??... please explain it sir... thank you sir
16:46 oh definitely... If a 5 feet tall stone pillar was holding up an iron ball, and if we suddenly replace it with a person and keep replacing as they get tired... We spending a lot of energy doing almost nothing and that much energy didn't go anywhere.... (Except a bit of heat and sweat)...
@@TheTariqibnziyad Doing work on the ball, adds P.E. The chemicals don't do work on the muscle cells which don't move, so all the work goes to heating the muscle cells.
@@TheTariqibnziyad work = Force x Distance. There's nothing moving not the ball, not the muscle cell. So the work in doing isometric exercise must go to heat.
Why does electric potential energy decrease with r? (1/r in the formula), so if two charges are close to each other they have the most potential energy? that makes no sense to me
@@andregromann9977 The formula is the same but the sign is not. Anyways dont think just about formulas, think about the logic. If you need a force to to push two things together, you increase the potential energy, which is what is happening with like charges.
@@bullpup1337 I wasn't talking about the video. If you see the equation I've written above, it has -F*x which is an extra term (compared to what shown in video) arising from external force. I still don't understand why that's part of potential energy while 0.5kx^2 should be enough!
@@samiddhajana8625 All the best Well I was working for 3 years on such a theory and finally I have made one that doesn't need any sort of unrealistic Copenhagen Interpretation or Born Rule of probability It can explain 1) Matter Wave Physical Meaning 2) Heisenberg Uncertainty Principle physical meaning 3)De Broglie'swavelength physical meaning 4) Solution of the measurement problem 5) Non probabilistic meaning of imaginary number in Wave function 6) Non probabilistic meaning of wave function norm square 7) Unification of general relativity and Quantum Mechanics 8)Non intrinsic nature of some fundamental quantities like mass and charge 9) Physical meaning of dual nature 10 Gravitational waves 11 Antimatter less quantity 12 Dark matter, dark energy, particle pair autogeneration With realistic and deterministic approach and predictions match with experimental results It's ready to be published
Here is a fact I learned in middle school physics: I hold my arm straight out in front of me. I keep holding it there absolutely stationary for 10 minutes. Physics tells me I did no work... but my shoulder tells me otherwise. What is it that my shoulder was doing? It was exerting a force with zero motion... so zero work. But my muscles are telling me energy was consumed.
You are burning chemical energy in your shoulder muscle (ATP) to keep it contracted, you are consuming chemical energy and storing potential energy cuz your arm will fall if you stop burning ATP
Your five points make a perfectly good outline for a talk, but are *not* different levels of understanding. You had about 1 and a half different "levels of understanding". First is that it is related to the position/configuration of objects in a system. Later, anything that takes work to get it into that state, which can then "do work" to return to the original state, is a more precise explanation and _might_ give more insight with respect to conservative forces. Stating that the value chosen for the zero point is arbitrary/relative is not a deeper explanation of what PE _is_ . Yet, that is given as "Level 3". Showing how the positions can give precise measurements (in a couple specific cases) is a quantification but does nothing to explain what PE _is_ and is certainly not another level of understanding, yet that's given as Level 2.
So potential energy is not so much an attribute of "the thing", but more a description of the space curvature where "the thing" is? That actually makes sense to me, if true.
If possible can you just touch upon, "Half retarded and Half accelerated potentials" which feynmann used at a time? It was a failed theory i think, but it would be cool to know what it means. Great video as always, you revised my entire physics curriculum in 1 go. haha Thanks for making the content. Regards
Hey everyone! Thank you so much for watching, please check out my channel for more fun physics content. Also wanted to say a big thanks to the sponsors of this video - check out Curiosity box at www.curiositybox.com/Parth
and use my code PARTH10 to save $10 on your subscription!
[03/11, 11:26 pm] Abhyuday singh: If in case of planets why should we consider gravitation force as conservation while it depends between distance between two object
[03/11, 11:28 pm] Abhyuday singh: Work will different for all planets for their different orientation
Full description of PE would take like 10 more levels.
It's sad that these 5 are basically all we need for practical purposes, so teachers never bother to explain it further
Really looking forward to the video about the discussion of PE as a theoretical tool!
Yes!
I am a highschool student preparing for JEE ADVANCE exam for engeenering in INDIA ..and your videos are quit really helpfull to me ...what my teacher told to me i connect to you and boom the clearest picture of that topic has been saved to my brain ..😁😁
You should join a coaching centre bcoz it it near to impossible to crack it on your own. If u have money problems you can take unacademy subscription or physics wallah .I am dropper because I didn't take coaching in class 11 and class 11 was a nightmare because even in schools they don't teach properly.
@Kelvin are u indian ? If you were, you wouldn't say that. CBSE is the most prevalent board for conducting high school exams. And it's syllabus is from ncert booklet which is especially pathetic in maths less pathetic in physics and kind of acceptable in chemistry(bcoz it's just theory). CBSE exam may not be very low in level as you need to explain why you are doing(unlike competitive exams like jee main and jee advanced where all are MCQ or integer type answers). And jee main and advanced are on another level. It may seem easy to say it's just from ncert it's just "Applications" of what you have studied in NCERT. But, if it was that easy we would have derived laws of motions earlier than Newton. That's why we need coaching here. Plus any engineering aspirant has to give this exam or else they will not get good colleges.
@@jyotsnasrivastava6373 i already had unacedemy bro ...i said this to motivate him
@@jyotsnasrivastava6373 aaram se bhai aaram se ...
Unfortunately, Jee advanced doesn't need you to understand many things with clear intuition. The videos of this channel aren't for the Jee advanced, they are for beginners who are interested in physics, mostly quantum physics.
For jee, you just need to understand what's in the syllabus. For example, You just need formulae of thermodynamics and little bit of understanding of how it all works, you needn't understand with your heart what everything means.
You can still watch the videos, but it won't be much help in jee. And jee doesn't have much quantum physics too. Your 11th and 12th grade is mostly classical. If you get into IIT, you'll have more exposure on quantum mechanics. I study at IIT Dharwad and I have quantum physics in both physics and chemistry in my first semester.
I can't believe that content of this high quality is available for free. Thank you for making your videos!
Hey Parth, just a Word of Motivation for you-"Love Your Videos and they are the Ones that add just perfect amount of Extra Knowledge which acts as Topping for my Science Studies and Probable Future-so keep Creating these Great Video✌🏻🖖🏻"
(Hope you Find this Comment and it Keeps You Motivated!)
Do a block sliding down an inclined plane , I’ve seen something similar but feel you could do better. It could start with a simplified Newtonian description for example an then build up progressively to something like the Hamiltonian. Would be a fun way to see how such a simple system can be analysed from basic to complex methods.
So far the best explanation of potential energy as a concept, but still not satisfying.
If I'm standing on a mountain, I have some potential energy. If I'm standing in the valley, I no longer have this energy...but if someone starts digging a hole in front of me... I'm gaining potential energy???
To be fair (and that's why your explanation is the best so far), you did mention that potential energy is not really stored in the object.
But clearly, potential energy is situational, virtual, and therefor not real.
Why doesn't anyone explain that???
WOW! Really wonderful. Would love to watch the further levels of it. As far as I guess, I know things till level 6. But what's 7 (or beyond), would love to watch.
Loved the video 🤗
Try to make on electric potential energy, also electromagnetic waves.
I would love another video on this fascinating topic!
Have to say, love this so much better than the other channel's who do this with kids. Instant subscribe! Very succinct and engaging explanations!
Your videos are really really good! I love the way you explain concepts, keeping it simple and nice! Looking forward to the video about the PE!
Great as always. Please do one more video about this!
level X question: you explained conservative forces doing work as the gradient of a scalar potential, but what about forces that don't do work but are the cross product of velocity with a curl of a vector potential (Magnetism, Coriolis)? What is a "vector" potential anyway. Why so many cross products?
Amazing, you should make more videos of basics physics but going deeper
Hello Parth. I really like your videos. I would really love to see a video of entropy explained in 5 different levels.
th-cam.com/video/NfTmy1ApCvI/w-d-xo.html
A very interesting and informative video, indeed. Thanks very much, well done again. Taking PE theoretically to a further level is well worth it. So, go for it please for the sake of many of your viewers.
Hi thank you so much!!!
This video help me to understand better in class, Thank you!!
Great as always. I was slightly surprised that in the examples of PE you stayed entirely within abstract examples when there is a very relatable practical one - hydro-electric power stations especially ones like the site in Wales where they use off-peak electrical energy to pump the water to a mountain-top reservoir storing GPE then releasing ir on demand through the turbines to get "new" electrical energy as the GPE is converted in the fall back to a lower level. Losses ignored of course.
Well, as a physicist, these examples are the most relatable one. Because, they solve it using Newton's laws, all the way upto using Hamilton-Jacobi equations. I understand why he chose these two systems.
Love to see more of this. So so good ,excellent content
Even as a kid i always felt like i didnt fully get potential energy, and thats still the case with a far matured understanding of physics, im looking foreward to this video
Definitely want a more in-depth video. We were still considering potential energy as "stored" energy at the end, despite it being a problematic term and one my brain doesn't really like somehow.
Thank you bro :-)
Thanks Q, you have great stuff
yes i want to watch further more levels of potential energy
I am concerned about this "arbitrary energy level" and General Relativity (GR)…
In GR, energy generates curvature, and curvature is an invariant (e.g. the curvature scalar).
How could the generator of a thing (energy) be arbitrary, but the generated thing (curvature) not be arbitrary?
It's not "arbitrary", it's _relative_ . If you have a system containing potential energy in a box floating in the middle of a galactic void, and you measure the mass using gravity of the box and its contents, you will get a mass that includes the potential of the system. If you let the device release its potential energy and you let that energy escape the box (say, you heat up the box and then let it radiate away massless photons), you'll get a smaller mass now and the battery, spring, or whatever it was reads "zero", because that's how far it was designed to discharge. If you let it discharge further, say, by letting it damage the battery so it can't be recharged again, or letting a mainspring out of its case so it unwinds completely straight, then you will lose even more mass. And by the measure of the original storage device, if it were still working, would show a negative value.
There _is_ an absolute amount though. In the case of gravitational potential energy, there is a limit as to how deep you can dig the basement and allow the ball to continue to fall. The ultimate limit to gravitational potential energy is to drop it into a black hole with the mass of the Earth. For the battery, you can imagine reacting the chemicals into even more stable compounds (e.g. burning the battery). Ultimately, anything made of normal matter can be transmuted into lead, releasing the maximum nuclear energy. And even then, it still has mass, but it's the lowest you'll be able to get it to drop without changing the conditions or introducing something else.
Great video! Even though I was familiar with most of what is here, it gave me the realization that PE is a CONCEPT. Which means that it can be applied where it works and dropped where it doesn't. I used to look for a specific place (on molecular, atomic, subatomic levels) where PE is stored. Now I realize it mostly doesn't work that way.
Space and real particles are made of virtual particles. Higher density space has more potential energy, therefore objects move from higher to lower density space. The space between similar charges or magnetic poles has much higher density than opposite ends causing the charges and magnetic poles to move away from each other. Similarly space density between masses is also lower and objects movetowards each other. Spring when compressed is denser and moves outward and when stretched less denser and moves inward.
Yes,waiting for next level.
For bonus points, discuss whether PE is able to gravitate.
Great video!
Please cover this question: what is the force exerted from a falling object when it hits the ground?
Tnx !!
I would love to see more videos about the concept of potential energy, i am an undergrad in physics in the middle of the course and i still struggle with this, right now i'm taking classical mechanics and this is quite trick to me idk why
I also think the video about PE as a theoretical tool will be a good video. As many levels as are necessary to describe the fundamentals of a subject should be fine, you might as well let it be variable. If you were ever interested in doing videos that describe levels of theory compared to levels of application that would be invaluable as well. All in all 10000 thumbs up!
Please do an deeper video regarding PE. I've came to this video searching to understand some conceptual issues with PE but the video did not went deep enough to answer them.
Make a video on transistor or diode 🥺
Hay parth I want you to make a video on torque or any counter intuitive concepts love your videos.. thank you by the way
This video helped me relate better to the concept of PE, but it feels incomplete (as you too said by the ending). It will be more satisfying (at least for me😅) if you make further videos related to PE. Also, I always enjoy the content of this channel😊.
you should do uhhhh coordination chemistry of metals in 3 levels
You are genius bro
His explanation of the form of the elastic potential energy was unsatisfactory. I'm going to have a go at it. First this is a non-calculus based derivation. In other words, no integrals will be harmed i tis derivation.
Starting with the concept that the work done on the spring will be the "stored" energy, i.e., elastic potential energy.
I. NON-CALCULUS
1) The distance is simply x.
2) The force is the force the spring exerts which is kx. F =kx
3) You might be tempted to just write W = Fx = (kx)x, but there is a problem, the force changes with length. at x = 0, it is zero, at x it is kx. Luckily it is linear so we can use the average force. That would be just the plain old average, (0 + x)/2 = 1/2x
4) So now we get W = (1/2kx)x = 1/2kx^2
II) CALCULUS
For those of you able to do Calculus, you would integrate the equation (kx) dx, the integral is, of course, 1.2kx^2 (the integral of xdx is 1/2x^2. Integrals are used to calculate area so this ties in with the next approach.
III. VISUAL
You can also do it visually. If you draw a rectangle with horizontal length equal to x, and height (vertical) equal to F, then area of the rectangle is Fx, work. That would be the case for gravity, the force is mg and the distance is h.
The spring is different because the force increases steadily from zero to kx. In this case we have a right triangle with base x, and height x. The hypotenuse is the line F =kx. The area of a triangle is 1/2 base x height, so we have 1/2(x)(kx) = 1/2kx^2.
There you have it, take your choice,
Wayne Y. Adams
Retired Physics Instructor (33 yrs. teacing)
please give us an idea of non conservative force like fluid or wind acting on a deforming object
Bhai ...I just wanna say your videos are awesome...can you make videos which can specially help jee and neet exam students...and if you launch a physics crash course for jee and neet students... it will be the most useful content for us... IT HAS ONLY 29 CHAPTERS TO DEAL WITH....plzzz BRO 😊😊😍😍
The potential energy for mechanical systems, seem graspable, but how did physicists come up with expressions for chemical or nuclear systems?
Yess please make it
explain the conservation of mechanical energy.
please have a discussion on PE in potential well and wave function for us too.
excellent video. just curious, what is the gravitation potential energy of a mass that passed a black hole event horizon?
Interested to see the downsides of the PE concept you mentioned.
I would like to see the other video. I always want to learn more. If you did set your arbitrary h = 0 at the top of a cliff and threw a ball off, it gains KE and loses PE then hits the ground and the KE dissipates into the surroundings(sound, heat, etc) but it still has a negative PE??
bro i actually like your videos that explained about black hole standerd equ...i need to know about the equation m theroy..could you explain in upcoming videoes
Excellent video
Respected parth g,We calculate energy per unit volume of electric field of electromagnetic waves with
capacitor arrangement...I tried really hard to understand why do use, energy required to charge the capacitor and we divide by volume of capacitor to calculate energy per unit volume of electric field.... they say the energy is stored in electric field BUT the energy gained by an CHARGE Q in electric field depends on magnitude of Q; (ENERGY GAINED=Q×Electric field×Distance moved in E field;) then how can we predetermine the energy of
electric field per unit volume??(1/2)CV^2 and (1/2)Q^2/C...It's just the energy required to make the E
field in capacitor HOW CAN THIS BE EQUAL TO ENERGY GAINED BY AN CHARGE Q IN THAT FIELD?? CAN YOU EXPLAIN ENERGY PER UNIT VOLUME OF E AND B FIELD INTUITIVELY WHAT DO THEY MEAN??
Clarify what the K.E. of a ball is after a pitcher imparts speed to the ball. To a distant observer, the ball has K.E. before it is thrown. To him, the ball speed is a sum of rates: Earth's orbital movement, Earth's surface movement (spin), Sun movement, and Galaxy movement. So to a distant observer, the ball has more energy than what the pitcher knows about. The pitcher on Earth assumes that everything that is not moving with respect to the inertial frame he rests in, is zero ball K.E. That's just like the distant observer. He would use the total speed of the ball to know the K.E. of the ball compared to what K.E. the ball has when nothing is moving within the distant observer's larger inertial frame.
Very informative bro... Which softwares and hardware you use to create these videos, plz reply
I want to see the 2nd video and n=7
How about Phase transitions (I. and II.) in 5 levels ?
yep
Your concise explanations always mesmerize me. Can you recommend books to learn physics?
He recommended in previous videos. Look at his video feed
Waiting for the next part...
9:50 Why not the absolute value of x, instead of x squared?
Why is it GPE when it's just basically gravitational energy that the earth is exerting on the ball?
The real problem starts when you try to explain and apply field theory to potential energy and deny the luminiferous aether. Light speed is a constant in vacuum because it is just a rate of induction and the aetherial field have entangled distributions. Potential energy is mostly a matter of gravitational acceleration, the gravitational effect we see is just a mix of an incoherent magnetic field and buoyancy.
None of that made any sense to me. Did you use a random word generator to come up with this?
@@bullpup1337 For as long as you don't open your mind to critical thinking and do some research plus experiments you will always limit your understanding of the universe. You don't need to be always right, but question everything.
This is simple: explain what is a field, how and why it works. A real explanation, not the canned description made in books and presentatations. Do the same with mass, force and momentum. You can't, mainstream can't. They are philosophically compromised.
@@1969nitsuga We cannot explain everything yet, and might not ever. But we can explain a lot. Mainstream isn't always right, but you need very good evidence if you argue against it. Do you have that?
Love this ❤️❤️
umm... Parth. I want a video with the graphing of potential energy and stability and stuff.
Sir if the black holes absorb everything in the extended velocity of light then is the relativity gets wrong ?
Sammidha jana Actually the photons do not travel through space, hence no velcity with it.only the 'h' is transfered one place to another just like electrical conductivity. Photon pairs are produced and annihilated through out the path. Mass of photons do not increase!
When a material body moving through space it's mass increases with it's velocity that it can never reach the velocity c in any condition. When a body falling to a black hole what ever the acceleration its velocity should be less than c. It never equals! I really understand your query mind ,appreciate it,doubt every thig, wish you all the best.
Great 💙
Great explanation sir✨☺️...pls make a vedio on current electricity (specially in kvl and kcl)...if you have any time then Absolutely make an TH-cam shorts🙏🏻....pls help me ,i can't visualize kvl by using basic machanics...why there we allways consider 2 or more than 2 different loop current but actually this different loop current are not exist in reality at that circuit .my teacher says that this is the moat difficult topic in our 12th standard physice to visualise
🙂watching now
More potential levels
hlo sir , What is the reason behind INTERFERENCE pattern produced by light when passes through AN NARROW SINGLE SLIT ? Does sound waves or water waves produce single slit interference??... please explain it sir... thank you sir
If you're talking about the double slit experiment its proof of superposition, and proof matter can behave in waves
Anyone else notice the spider on the wall from 0:56 to 1:11 ?
Suoer clear as usual. Are you even capable of saying "Er..." or "Um..." ever?🙂
#Teamseas please be a part of the movment
Quantum field potential energy 🤔
Hi Parth how can I contact you I have some questions to ask
What is wrong in fs to give kx^2
Go for n = 7 levels, fer sher.
Bhaiya can you make video on sonoluminescence
16:46 oh definitely...
If a 5 feet tall stone pillar was holding up an iron ball, and if we suddenly replace it with a person and keep replacing as they get tired...
We spending a lot of energy doing almost nothing and that much energy didn't go anywhere.... (Except a bit of heat and sweat)...
K.E. = 1/2 mv². You are talking about the work to maintain P.E. None with stone and some with the muscle.
You burned lot of chemical energy (ATP) which is also potential energy waiting to be used, so yea that some sweat and muscle are energy used.
@@TheTariqibnziyad Doing work on the ball, adds P.E. The chemicals don't do work on the muscle cells which don't move, so all the work goes to heating the muscle cells.
@@Uri1000x1 even by not moving, just standing up consumes energy
@@TheTariqibnziyad work = Force x Distance. There's nothing moving not the ball, not the muscle cell. So the work in doing isometric exercise must go to heat.
Why does electric potential energy decrease with r? (1/r in the formula), so if two charges are close to each other they have the most potential energy? that makes no sense to me
It makes sense if you think about the fact that like charges repel each other.
@@bullpup1337 Yes but the formula is the same for any charges, could you elaborate pls?
@@andregromann9977 The formula is the same but the sign is not. Anyways dont think just about formulas, think about the logic. If you need a force to to push two things together, you increase the potential energy, which is what is happening with like charges.
Time
As per Rayleigh ritz method, Total Potential Energy of a spring, PE = 1/2 k*x^2 - F*x.
Why is the work done by external force is negated here?
Which external force? This was a totally idealized example without external forces or friction.
@@bullpup1337 I wasn't talking about the video. If you see the equation I've written above, it has -F*x which is an extra term (compared to what shown in video) arising from external force. I still don't understand why that's part of potential energy while 0.5kx^2 should be enough!
@Mr Fl0v Thank you!
I’m still not convinced that potential energy isn’t a purely imaginary property.
Hi
Sir can we ve able to join general relativity with quantum mechanics ?
Research is going on
I will join these two theories
@@samiddhajana8625 All the best
Well I was working for 3 years on such a theory and finally I have made one that doesn't need any sort of unrealistic Copenhagen Interpretation or Born Rule of probability
It can explain
1) Matter Wave Physical Meaning
2) Heisenberg Uncertainty Principle physical meaning
3)De Broglie'swavelength physical meaning
4) Solution of the measurement problem
5) Non probabilistic meaning of imaginary number in Wave function
6) Non probabilistic meaning of wave function norm square
7) Unification of general relativity and Quantum Mechanics
8)Non intrinsic nature of some fundamental quantities like mass and charge
9) Physical meaning of dual nature
10 Gravitational waves
11 Antimatter less quantity
12 Dark matter, dark energy, particle pair autogeneration
With realistic and deterministic approach and predictions match with experimental results
It's ready to be published
Are you doing your phd ?
@@abhipsitbajpai2508 are you going to publish your research paper ? Are you a indian ?
Here is a fact I learned in middle school physics: I hold my arm straight out in front of me. I keep holding it there absolutely stationary for 10 minutes. Physics tells me I did no work... but my shoulder tells me otherwise. What is it that my shoulder was doing? It was exerting a force with zero motion... so zero work. But my muscles are telling me energy was consumed.
You are burning chemical energy in your shoulder muscle (ATP) to keep it contracted, you are consuming chemical energy and storing potential energy cuz your arm will fall if you stop burning ATP
@@TheTariqibnziyad I agree with you except for one fact: there is no increase of potential energy.
@@laurendoe168 yes, you are storing the same PE, no increase i agree, the very fact of storing it consumes energy
@@TheTariqibnziyad I guess this is one of the many science things I won't understand. One of the seemingly simpler, though.
@@TheTariqibnziyad I guess this is one of the many science things I won't understand. One of the seemingly simpler, though.
What is your name?
Woow
quantum chromo dynamics in 5 levels
Your five points make a perfectly good outline for a talk, but are *not* different levels of understanding. You had about 1 and a half different "levels of understanding". First is that it is related to the position/configuration of objects in a system. Later, anything that takes work to get it into that state, which can then "do work" to return to the original state, is a more precise explanation and _might_ give more insight with respect to conservative forces.
Stating that the value chosen for the zero point is arbitrary/relative is not a deeper explanation of what PE _is_ . Yet, that is given as "Level 3". Showing how the positions can give precise measurements (in a couple specific cases) is a quantification but does nothing to explain what PE _is_ and is certainly not another level of understanding, yet that's given as Level 2.
hey parth i have mailed you my research paper i would be grateful if you could reply
hi
advance PE in 5 level
I'm a physics student, why did I even clicked? xd
So potential energy is not so much an attribute of "the thing", but more a description of the space curvature where "the thing" is?
That actually makes sense to me, if true.
Oh man, what did I see? g = 10? duuuuuude
Keeping it simple ;)
If possible can you just touch upon, "Half retarded and Half accelerated potentials" which feynmann used at a time? It was a failed theory i think, but it would be cool to know what it means.
Great video as always, you revised my entire physics curriculum in 1 go. haha
Thanks for making the content. Regards
I thought he was wearing a dressing gown, then realised it was just the way the microphone was just pulling down the neck of the shirt.
🤍