Class 11 Physics - Chapter 04: Rotational & Circular Motion Notes (New Curriculum 2022-2023)

 If you are a Class 11 (HSSC-I) FBISE student, these handwritten notes for Physics Chapter 04: Rotational and Circular Motion are prepared strictly according to the new FBISE National Curriculum (2022–2023). The notes focus on concept clarity, formulas, and numerical problem-solving, making them ideal for exam preparation. You can find the download/view link at the end of this post.

Chapter Overview: Rotational and Circular Motion

This chapter explains the motion of bodies that rotate about an axis or move along a circular path.

It introduces important rotational quantities such as angular displacement, angular velocity, torque, moment of inertia, and angular momentum. This is a high-weightage chapter, especially for numerical problems and conceptual questions in exams.

Topics Covered

The following topics are fully covered according to the FBISE syllabus Angular Position, Angular Displacement, Angular Velocity, Angular Acceleration, Relationship Between Linear and Angular Kinematic Quantities, Centripetal Force, Centripetal Acceleration, Banking of Roads, Moment of Inertia, Angular Momentum, Relation Between Torque and Angular Momentum, Torque and Angular Acceleration and Numerical Problems. Each topic is explained using standard formulas, derivations, and step-by-step methods where required.

Important Concept Explanations

Angular Motion: Angular quantities describe rotational motion in terms of angles instead of linear distance. These quantities are directly related to linear motion.

Centripetal Force: Centripetal force is the force that keeps an object moving in a circular path and always acts towards the center of the circle.

Banking of Roads: Banking of roads helps vehicles take turns safely by reducing reliance on friction and preventing skidding.

Moment of Inertia: Moment of inertia is the rotational analogue of mass and depends on the mass distribution of a body about the axis of rotation.

Angular Momentum and Torque: Angular momentum depends on moment of inertia and angular velocity, while torque causes changes in angular motion.

Why These Notes Are Helpful

These notes help students to Understand rotational motion concepts clearly, Learn relationships between linear and angular quantities, Solve centripetal force and banking numerical problems easily and Practice exam-oriented numerical problems. The notes are written in simple language, suitable for quick revision and exam preparation.

Download/View Class 11 Physics Notes - Chapter 04 Rotational and Circular Motion

Chapter 04 - Rotational and Circular Motion

Final Tip for the Students

Always write formulas first, convert values into SI units, and mention proper units in final answers to score maximum marks in numerical problems.