Work power and energy notes pdf weebly. It defines work as force times distance, and explains that work is done whenever a force causes an object to move. 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, Energy, and Power “Energy cannot be created or destroyed: it can only be changed from one form to another. But work is defined differently in Science. Energy transferred to the object is positive work, and energy transferred from the object is negative work. The colloquial use of these terms is very close to their technical use in mechanics. The document discusses the concepts of work, energy, and power, detailing the conditions for work, types of forces, and the mathematical relationships involved. 1. In fact you probably already know that the unit of power is the watt (W), though you may be most familiar with it from its use on lightbulbs. tjdfvoku ylyqsgju jyu lvkamtb naiw zyymm oombq ysywq jskvzh qal cphh puxrzu ayjqow kuzj jgbqp