Physics Formulae

This aim of this article is to provide links to external articles on tabulations of fundamental physics formulae, laws, principles, definitions of important quantities, and their application to useful results which are frequently encountered in physical problems. As physics is such a large subject, each branch of physics requires its own article for tabuluations of equations.

The scope is that of advanced school/ introductory degree level Physics, and beyond. For generality the language of calculus (including multiple integrals and partial differentials), vector algebra and calculus and matrices is neccersary. Tensors are also sometimes required for generality, but kept to a minimum. Only SI units and their corresponding dimensions are used (i.e. no natural/characteristic units or non-dimensional equations).

## Fundamental, General Quantities

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The quantities below recur throughout all fields of physics, characteristic to the foundational SI units. The articles which follow use this nomenclature unless otherwise stated.

Quantity (Common Name/s) | (Common) Symbol/s | SI Units | Dimension

|
|
|

Length, width, height, depth |  a , b , c , d , h , l {\displaystyle a,b,c,d,h,l\,\\!}

r , w , x , y , z {\displaystyle r,w,x,y,z\,\\!}

| m | [L]
(Spatial) Position Vector |  r , R , a , d {\displaystyle \mathbf {r} ,\mathbf {R} ,\mathbf {a} ,\mathbf {d} \,\\!} | m | [L]
Area |  A , S {\displaystyle A,S\,\\!} | m2 | [L]2
Area Vector |  A = A n ^ , S = S n ^ {\displaystyle \mathbf {A} =A\mathbf {\hat {n}} ,\mathbf {S} =S\mathbf {\hat {n}} \,\\!} | m2 | [L]2
Volume |  V {\displaystyle V\,\\!} | m3 | [L]3
Plane Angle |  α , β , γ , θ , ϕ , χ {\displaystyle \alpha ,\beta ,\gamma ,\theta ,\phi ,\chi \,\\!} | rad | dimensionless
Solid Angle |  ω , Ω {\displaystyle \omega ,\Omega \,\\!} | sr | dimensionless
Angular Position,

Angle (of Rotation)

|  θ {\displaystyle \theta \,\\!} | rad | dimensionless
Time |  t {\displaystyle t\,\\!} | s | [T]
Mass |  m {\displaystyle m\,\\!} | kg | [M]
Temperature |  θ {\displaystyle \theta \,\\!} | K | [Te]

## Derived General Quantities

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Many quantities in the classical physics section, such as mass, momentum, force, energy are are also continuously used throughout all fields of physics, with appropriate modifications. They are not fundamental as they can be derived.

## Main Articles

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General Physics

Conservation and Continuity Equations

Classical Physics

Classical Mechanics Formulae

Equations for Properties of Matter

Thermodynamics Formulae

Waves Formulae

Gravitation Formulae

Foundational Modern Physics

Electromagnetism Formulae

Electric Circuits Formulae

Equations of Light

Advanced Modern Physics

Quantum Mechanics Formulae

Special Relativity Formulae

General Relativity Formulae

Astronomy and Cosmology Formulae

Particle Physics Formulae

## References

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* David Halliday; Robert Resnick; Jearl Walker (15 March 2010). Fundamentals of Physics. John Wiley and Sons. ISBN 9780470469118. http://books.google.com/books?id=y7lYHi4OZB0C. Retrieved 31 March 2011.

* Nouredine Zettili (2009). Quantum mechanics: concepts and applications. John Wiley and Sons. ISBN 9780470026786. http://books.google.com/books?id=6jXlpJCSz98C. Retrieved 31 March 2011.

## External links

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* Physics formulae at xs4all.nl
* Physics formulas at Physics Wallah