's Introduction to Elementary Physics

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Elementary physics encompasses fundamental laws related to motion, electricity, and other natural phenomena. The discussion emphasizes the importance of asking specific questions rather than general ones to receive meaningful guidance. A suggestion is made to focus on classical theories, such as E=mc^2, while avoiding complex topics like relativity for beginners. Participants highlight that general inquiries can lead to overwhelming responses, akin to summarizing an entire physics textbook. Engaging with targeted questions will yield better insights and understanding in the field of physics.
Mrod777
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I am just starting in elementry Physics and so in fear of asking an over simplified Question Can some one break down the common Law's of Physic's relating to natural occurances such as Motion/Electricity/Vortex's and any other relitive information you may deem esential.
Mark
 
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Hi Mark and welcome to the Forums,

Perhaps it would be easier if you asked the question you want to ask...
 
Start with--E= mc^2
 
If your just starting elementary physics, and judging by the thread title I'm guessing that your just after classical theories, I would stay a way from relativity for the moment.
 
Hi my back ground is in Electronics in the Medical field.
 
The reason Hootenanny gave you the response he gave is that your question is so general you are essentially asking us to post the first several chapters of a physics book. That isn't how a discussion forum works. You need to ask more specific questions if you want real help.
 

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
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