===== Chapter 04: Work and Energy ===== Notes of Chapter 04: Work and Energy of “Physics XI” for FSc Part 1 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 1 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan. === Summary and Contents: === The work done by a constant force is defined as The product of magnitude of displacement and the component of the force in the direction of the displacement. * Work Done by a Constant Force * Work Done by a variable Force * Work Done by Gravitational * Power * Energy * Work Energy Principle * Absolute Potential Energy * Escape Velocity * Interconversion of Potential Energy and Kinetic Energy * Conservation of Energy * Non Conventional Energy Sources * Energy from Tides * Energy from Waves * Solar Energy * Energy from Biomass * Energy from Waste Products * Geothermal Energy === View Online & Download ===