Physics is a fascinating subject, and understanding its formulas is essential for any student who wants to excel in the field. From Ohm's Law to the lens manufacturer's formula, this guide will provide you with a comprehensive list of the most important physical formulas and concepts. The formula for gravity is one of the most fundamental in physics. It measures the force with which an object falls due to gravity, and is expressed as **F = mg**, where F is the force, m is the mass of the object, and g is the acceleration due to gravity.

Another important formula is the ideal gas law, which states that **PV = NkT**. Here, P is the pressure, V is the volume, N is the number of molecules, k is the Boltzmann constant, and T is the temperature of the gas. Ohm's Law states that **I = V/R**, where I is the current passing through some conductive material, V is the potential difference between two conductor endpoints, and R is the resistance. The lens manufacturer's formula can be used to calculate the focal length of a lens based on its physical parameters.

It states that **1/f = 1/d + 1/s**, where f is the focal length of the lens, d is its object distance from the lens, and s is its image distance from the lens. In addition to these formulas, it's important to remember some key indicators in SI units. These include acceleration (m/s2), force (N), energy (J), power (W), pressure (Pa), and temperature (K). To truly understand physics, it's not enough to just memorize these formulas.

You should also review the fundamental concepts behind them. This will help you derive or remember them more easily when solving problems. This guide has provided you with a comprehensive list of basic physics formulas and concepts. With a proper understanding of these formulas and concepts, you'll be able to solve any challenge presented in your chosen competitive exam.