Does the wall get somewhat warped from me pushing it?

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Discussion Overview

The discussion revolves around the physics of forces, specifically the interaction between a person pushing against a wall and the resulting forces involved. Participants explore concepts related to force application, material deformation, and the transparency of thin materials. The scope includes conceptual understanding and technical explanations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions how the ground applies an upward force when they push against it, seeking clarity on the nature of this force.
  • Another participant suggests that walls can warp slightly under pressure, comparing them to stiff springs.
  • A participant discusses the mutual repulsion of electrons as the reason for the resistance felt when pushing against a wall.
  • There is a mention of how the transparency of materials relates to their thickness, with a focus on the atomic structure affecting light passage.
  • Another participant provides an analogy involving shining light through a book to illustrate how thickness impacts transparency.

Areas of Agreement / Disagreement

Participants express various viewpoints on the nature of forces and material properties, with no clear consensus reached on the complexities of these concepts.

Contextual Notes

Some statements involve assumptions about atomic interactions and material properties that may not be universally agreed upon. The discussion includes speculative elements regarding the effects of pushing against solid objects and the implications of material thickness on transparency.

Who May Find This Useful

This discussion may be of interest to students and individuals seeking to understand basic physics concepts related to forces, material properties, and the behavior of light in relation to thickness.

Anonymous9001
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Although I do not remember the name of such question I am asking I am able to describe it in a sense. My Physics teacher had tried explaining and I was unable to conceive it, but maybe someone else can put it in laymen terms I suppose?

I walk against the ground applying 100 N (random amount) and the ground shifts from 0 N applied to 100 N upward from where I am standing, how exactly does it apply the upward force? What force is it that's acting on me that's 'holding' me up?
I hope I have explained this well, I am pretty tired from my Algebra 2 homework so I am unable to completely think clearly.

Another example of what I am asking/needing further help on: I push against a wall of 5 N, and the wall pushes me back of 5 N, where does this force come from and how does it push me back? Does the wall not get somewhat warped from me pushing it?

Something else that has me perplexed would be that my teacher said if you made something thin enough it would be see through no matter what the material was, so I had asked her if the wall had no paint and had been cut down to the thinnest possible but able to stand firm it would be like a glass window? She responded yes, maybe someone can help me perceive the complexities of science and such, but if it's a strenuous task to do so, please do not answer the question just say so and I'll figure it out somewhere else, I thank you all for your time.
 
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Anonymous9001 said:
Does the wall get somewhat warped from me pushing it?
Yes, it's similar to a very stiff spring, the wall or the ground compresses a small amount when there's a force involved.
 
Thank you for the quick response although not entirely explaining what I asked in the previous comment, I greatly (I seriously mean greatly) appreciate your answer.
 
Anonymous9001 said:
Made something thin enough it would be see through.
If the coating on a mirror is made very thin, you get partial transparency, it's partially reflective and partially see through.
 
Welcome to PF, Anonymouse9001.
The basic answer as to what is holding you back is the mutual repulsion of electrons. Electrons are negatively charged and in "orbit", as opposed to the positive protons in the nucleus. Since like charges repel, two atoms approaching each other tend to not cohabitate. You would have to figure out some way to exceed the "electron degeneracy pressure" in order to make them merge.
As for the transparency issue, opacity or reflectivity (aspects of the same thing) is based upon the absorption and re-emission of photons from a particular atomic structure. The thinner the material, the fewer atoms there are between the source and the observer. Your teacher is correct, but it is something that is very hard to explain.
 
Try to shine a light through a book. Most likely none of the light will go through it. If you shine it through just a few pages of the book, some light will get through. Even more will get through just one sheet.

It pretty much works that way with every material.

You can always go thinner, until you reach one atom of thickness. One atom thick is VERY thin. Considering that atoms are mostly empty space, it's not hard to see how light would get through.
 
Thank you all for your answers, I understand now.
 
Anonymous9001 said:
I understand now.

Good. Now go shake hands with your teacher and tell him to get his butt onto this site where he can help a lot more kids than he can within the bounds of schoolroom walls. :biggrin:
 

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