Energy Transferred Into and Out of a System

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Flipping Physics

Күн бұрын

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@andrewjustin256 5 күн бұрын

2:29, Mr. P, have you been able to make videos about th e other modes of the energy transfer?

@sharykoya630 3 жыл бұрын

thanks for your usual nice vidios

@eXfilPr4tik 3 жыл бұрын

This is a NICE video!

@eXfilPr4tik 3 жыл бұрын

I am going to watch it till end

@FlippingPhysics 3 жыл бұрын

So, how was it?

@eXfilPr4tik 3 жыл бұрын

@@FlippingPhysics as AWESOME as always it has been! 🙂

@broysthgaming3877 Жыл бұрын

Why ∆E of the system = ∆ME + ∆ internal E ?

@godussop9882 9 ай бұрын

true

@Anveshkrishna 8 ай бұрын

Why is change in internal energy equal to the negative of the work due to non conservative force? Does this also mean that the final internal energy in a system is always lesser than the initial energy of a system?

@martinsanchez-hw4fi 4 ай бұрын

A force applied (like the one I do when lifting the book) is also non conservative, but it is not changing mechanical energy into internal, right?

@azrajamal1121 3 жыл бұрын

Thank you, sir👍🏻❤️

@FlippingPhysics 3 жыл бұрын

You are very welcome

@azrajamal1121 3 жыл бұрын

@@FlippingPhysics You are a great human being. Thanks for all your effort...❤️

@Anveshkrishna 8 ай бұрын

Mr. P, why does force of friction not equal change in internal and mechanical energy? Why is that only for force applied?

@kellyhighmore2982 2 жыл бұрын

Hi Mr.P. i really really need your help , i'm a selflearning student , i droped out of school last year and decided to be a selflearning studend and now i've finished my highschool here in home and i've never done any final exams for my grades in highschool i've never went to any highschool , so do you think i will be able to only do the US diploma exam and go to college without having gone to any highschool??

@daniellelafferty142 3 жыл бұрын

Hi Mr. P.! First off, thank you so much for your videos! They are probably the only reason I managed to get a 5 in AP Physics 1. Now, I am using your videos to self-study AP Physics C! I do have one question about this video, though. It's probably a stupid question, but what do you mean by applied force (do you mean a force external to the system?), and how is this different from a nonconservative force? Thank you so much!!!

@carultch 3 жыл бұрын

You can think of an "applied force" as a human force in most simple examples. It could be something else, like the forces from the work of a motor or engine, if it is beyond the capabilities of a human to apply. A force of a human's intervention to either set things in motion or assist them as they come to a stop. An "applied force" is a force where the details of its cause are unspecified for the problem, and can be whatever force we define it to be. Human forces are non-conservative, because you usually cannot store energy as you bring an object to a stop with your muscles, and resupply that energy later as work you do. Your muscles dissipate the energy of motion as heat, when they assist an object to a stop. Any new work you do, must come from the chemical energy of your food. Non-conservative forces in general, are forces which have no associated potential energy, and likely have a path-dependence on the work done by them. They are associated with energy either entering (usually originating as chemical energy) or leaving the domain of mechanical energy (usually as thermal energy). A non-conservative force is also associated with an irreversible process, unlike conservative forces where energy can reversibly change between the two forms in either direction. Ultimately, energy IS conserved in some form or another, no matter what the interaction is, even if the energy doesn't remain in the mechanical energy domain. In a more abstract sense, even chemical and thermal energy are forms of mechanical energy, just not immediately obvious to us on a macroscopic scale. Thermal energy is ultimately the scattered kinetic energy of motion at the molecular level, and chemical energy is ultimately the electric potential energy of atom configurations.

@Anveshkrishna 8 ай бұрын

Sorry for the repetition of the messages. Not intended😢

@farhadali9069 3 жыл бұрын

Sir one question wave is disturbance of medium through which energy is transferring but sir there is no medium in electromagnetic waves.

@carultch 3 жыл бұрын

"Wave is disturbance of medium through which energy is transferring" is an oversimplified statement, and a statement that is biased for waves like sound waves, elastic response waves, and fluid waves, whose mechanism of propagation is more obvious to us. You could say that the medium of electromagentic waves is the electric and magnetic fields, or you could say that they are a special case of a wave where there is no medium, because they can travel through empty space. Electric and magnetic fields certainly do exist, and can contain both energy and momentum. They just don't have matter as we usually think of it.

@andrewjustin256 5 күн бұрын

In the case of Electromagnetic waves, the medium is not the matter but electric and magnetic field. And you know what I found much more smashing is that matter itself is the disturbance of Higgs Boson field so now matter has an overlap with the waves! Oh my goodness! I'm getting goosebumps...