Kinetic Energy and Potential Energy   Potential energy is the energy within an object because of its position or state. Gravitational potential energy: E = mgh     Where:   E = Potential Energy [J]   M = Mass [kg]   g = Gravitational Acceleration [m s-2]   h = height of the location of…

Definition of Power in Physics   The rate of work done Or   Rate of energy transfer     Where:   P = power [J s-1]   W = work [J]   E = Energy [J]   T = Time [s]   Thus, you can try to “lure” someone from friends on the path of…

Definition of Energy in Physics   Energy is the potential or ability of a system to do work. Energy is a scalar quantity   Thus, you can try to “lure” someone from friends on the path of listening to books, leading to greater education and giving significant benefits in knowledge. Although, many of the people…

Definition of Work Done in Physics   Work done by a constant force to move an object = displacement  x  force parallel to direction   Work is a scalar quantity.   W = Fs   Where:   W = work [J] F = force creating the work [N] S = displacement [m]   Thus, you…

Law of Universal Gravitation in Physics   Introduction:   Newton proposed the theory that all objects in the universe attract if each other with a force known as gravitation. The gravitational attraction exists between all bodies. Hence, two stones are not only attracted towards the earth, but also towards each other.   Statement:   Everybody…

Difference between Centripetal & Centrifugal Force   Definition:   The force that causes an object to move along a curve (or a curved path) is called centripetal force.     Mathematical Expression:   We know that the magnitude of centripetal acceleration of a body in uniform circular motions is directly proportional to the square of…

Centrifugal Force in Physics   Definition:   A force supposed to act radically outward on a body moving in a curve is known as centrifugal force.   Explanation:   Centrifugal force is actually a reaction to the centripetal force. It is a well-known a fact that Fc is directed towards the centre of the circle,…

Definition of Centripetal Force   Definition:   The force that causes an object to move along a curve (or a curved path) is called centripetal force.     Mathematical Expression:   We know that the magnitude of centripetal acceleration of a body in uniform circular motions is directly proportional to the square of velocity and…

Three States of Equilibrium   There are following three states of Equilibrium:   First State (Stable Equilibrium)   A body at rest is in stable equilibrium if on being displaced, it has the tendency to come back to its initial position.   When the centre of gravity of a body i .e. below the point…

Second Condition of Equilibrium   A body will be in second condition of equilibrium if sum of clockwise (Moment) torque must be equal to the sum of anticlockwise torque (Moment), then the body is said to be in second condition of equilibrium.   If you approach reading in a balanced way, there will be one…