Work Power And Energy Formulas Pdf

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.

Work power and energy formulas pdf.

Before moving to physics formula pdf sheet of chapter work energy power complete the theory form your text book than read the physics formula sheet of entrancei for effective revision do practice the questions from entrancei physics sections of chapter work energy power. The unit of power is watt. Free pdf download of physics class 11 chapter 6 work energy and power formula prepared by subject expert teacher at vedantu. In the international system of units the unit of power is the watt equal to one joule per second.

Dimensions of power linear momentum of an isolated system is always conserved in a collision. X k is the spring constant and x is the amount of compression or streching kinetic energy. H m is the mass g is the gravitational acceleration and h is the distance potential energy of the spring. Work work done w is defined as the dot product of force f and displacement s.

It is a scalar quantity. In this article we will learn all about the concept of work power and energy. Work done by the force is equal to the product of the force and the displacement of the object in the direction of force. Cbse class 11 physics work energy and power notes.

Revision notes on work power and energy. In physics power is the amount of energy transferred or converted per unit time. A collision in which the total kinetic energy of the system is conserved is called elastic. Work power and energy are among the most important concepts of mechanics.

1 watt 1 joule second. Power is a scalar quantity. 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. This signifies when the force and displacement are in same.

Power is defined as work done per unit time. Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. Work done by the force is positive if the angle between force and displacement is acute 0 θ 90 as cos θ is positive. Ek 1 2mv m is the mass v is the velocity work power energy exams and solutions.

The output power of a motor is the product of the torque that the motor generates and the angular velocity of its output shaft. In older works power is sometimes called activity.