Work Energy And Power Class 11 Notes

Work energy and power class 11 notes physics chapter 6 work is said to be done when a force applied on the body displaces the body through a certain distance in the direction of applied force.

Work energy and power class 11 notes.

Regarding the work energy theorem it is worth noting that i if w net is positive then k f k i positive i e k f k i or kinetic energy will increase and vice versa. Work done by the force is positive if the angle between force and displacement is acute 0 θ 90 as cos θ is positive. Dronstudy provides free comprehensive chapterwise class 11 physics notes with proper images diagram. Notes for work energy and power chapter of class 11 physics.

Cbse class 11 physics work energy and power notes. Physics notes class 11 chapter 6 work energy and power work when a force acts on an object and the object actually moves in the direction of force then the work is said to be done by the force. Work power and energy are among the most important concepts of mechanics. And k f final kinetic energy.

It is measured by the product of the force and the distance moved in the direction of the force i e w f s. Work work done w is defined as the dot product of force f and displacement s. Work done by the force is equal to the product of the force and the displacement of the object in the direction of force. This signifies when the force and displacement are in same.

Revision notes on work power and energy. A moving car walking up stairs lifting heavy objects an aeroplane flying etc are among the most common examples that give us insight into the concept of work power and energy. Where k i initial kinetic energy.