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.

Work power and energy are among the most important concepts of mechanics. Revision notes on work power and energy. 1 watt 1 joule second. Dimensions of power linear momentum of an isolated system is always conserved in a collision.

It is a scalar quantity. A collision in which the total kinetic energy of the system is conserved is called elastic. H m is the mass g is the gravitational acceleration and h is the distance potential energy of the spring. Power is defined as work done per unit time.

Power is the rate at which work is done or energy is transformed. 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. The output power of a motor is the product of the torque that the motor generates and the angular velocity of its output shaft. This signifies when the force and displacement are in same.

In the international system of units the unit of power is the watt equal to one joule per second. Work done by the force is equal to the product of the force and the displacement of the object in the direction of force. Ek 1 2mv m is the mass v is the velocity work power energy exams and solutions. Here θ is the angle between and.

The unit of power is watt. Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. In older works power is sometimes called activity. 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.

Work done by the force is positive if the angle between force and displacement is acute 0 θ 90 as cos θ is positive. In physics power is the amount of energy transferred or converted per unit time. Work formula example of work types of energy power formula questions. In this article we will learn all about the concept of work power and energy.

Free pdf download of physics class 11 chapter 6 work energy and power formula prepared by subject expert teacher at vedantu. Cbse class 11 physics work energy and power notes.