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.

The work done on a body 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.Energy is defined as the ability of the body to do work is called energy.

• 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