Notes of Chapter 05: Circular Motion 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.

When a body is moving in a circle, its motion is called circular motion.The angle through which a particle moves in a certain interval of time, while moving in a circle, is called its angular displacement. It is denoted by ‘θ’. The angular displacement is a vector quantity and its SI unit is radian. The other units of angular displacement are degrees and revolution.

• Angular Displacement
• Angular Velocity
• Angular Acceleration
• Relation between Angular and Linear Velocity
• Centripetal Force
• Moment of Inertia
• Angular Momentum
• Law of conservation of Angular Momentum
• Rotational Kinetic Energy
• Artificial Satellities
• Real and Apparent Weight
• Weightlessness in Satellites and Gravity Free System
• Orbital Velocity
• Geostationary Orbits
• Communication Satellites
• Newton’s and Einstein’s View of Gravitation