Physics

Areas of Physics

Interdisciplanary areas of physics

Quantities in Physics

Base Units

Convention for indicating units

Derived Units

S.I. Units (International System of Units)

Supplementary units

Significant figures

Rules of Significant figures

Further discussion on Significant figures

Scientific notation

Scalars and Vectors

Addition and subtraction of co-planar vectors

Rectangular components of a vector

In order to check the correctness of an equation, we are to show that the dimensions of the quantities on both sides of the equation are the same, irrespective of the form of the formula. This is called the principle of homogeneity of equations.

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