Energy: Kinetic Energy | Conservative and Non Conservative forces | Potential Energy (Gravitational and Spring) | Work energy theorem | Law of conservation of energy

Energy: Kinetic Energy | Conservative and Non Conservative forces | Potential Energy (Gravitational and Spring) | Work energy theorem | Law of conservation of energy

Work done by various forces, Potential and kinetic energy. Conservative and non conservative forces

Concept of conservative and non conservative force

Illustration and Conservative Forces

A force is said to be conservative if work done by or agains the force depends only on initial and final positions of the body and not on the nature of path followed. A force is said to be non-conservative, if work done by or against the force in moving a body from one position to another, depeds on the path followed between these two positions. Potential energy is defined only for conservative forces. It does not exist for non-conservative forces. Read the above passage and answer the following question : (i) Give two examples, each for conservative and non-conservative forces. (ii) Potential energy does not exist for non-conservative forces. What does it imply ini day to day life ?

Is friction a non-conservative force?

Define the conservative and non -conservative forces. Give examples of each.

Identify conservative and non-conservative forces given below and write one main difference between them on the basis of work done : frictional force, electrostatic force, gravitational force and viscous force.

Potential Energy|| Potential Energy and Force ( Conservative ) Relation || U is Given Find F|| F is Given Find U