According to this law,“energy can only be converted from one form to another; it can neither be created or destroyed. The total energy before and after the transformation remains the same.” The law of conservation of energy is valid in all situations and for all kinds of transformations. Consider a simple example. Let an object …
Energy is a scalar quantity whose SI unit is the joule (J). Energy is found in many things and thus there are different types of energy. All forms of energy are either kinetic or potential. Kinetic EnergyThe energy in motion is known as Kinetic Energy. For example, a moving ball, flowing water etc. The SI …
What is Energy ? The capacity to do work is energy. Energy can only be changed from one form to another; it cannot be created or destroyed. Energy is measured in the same manner as work, i.e. Joules. There are various types of energy because it is present in many different things. There are two …
What is Work ? A force must be applied for work to be completed, and there must also be motion or displacement in the force’s direction. The amount of force multiplied by the distance moved in the force’s direction is known as the work done by a force acting on an object. Work has no …
James Prescott Joule was an outstanding British physicist.He is best known for his research in electricity and thermodynamics.Amongst other things, he formulated a law for the heating effect of electric current. He also verified experimentally the law of conservation of energy and discovered the value of the mechanical equivalent of heat. The unit of energy …
