Rotational Motion – Moment of Inertia, Torque, Angular Momentum
Physics · Grade 11 · Week 19 · 25 questions
Rotational Motion is a foundational Grade 11 physics chapter that covers Moment of Inertia, Torque, and Angular Momentum. These concepts reappear throughout Grade 12 and in competitive exams like JEE and NEET.
What you'll practise
- Analyse Moment of Inertia
- Derive Torque
- Calculate Angular Momentum
- Apply rotational motion concepts to NCERT exercise and exemplar problems
All 25 questions in this Rotational Motion – Moment of Inertia, Torque, Angular Momentum quiz
Grade 11 Physics — Rotational Motion – Moment of Inertia, Torque, Angular Momentum: 25 practice questions with instant scoring and explanations.
- Moment of inertia is the rotational analogue of:
- SI unit of moment of inertia:
- MOI of a ring of mass M and radius R about its axis perpendicular to its plane:
- MOI of a disc about its axis:
- MOI of a solid sphere about its diameter:
- MOI of a hollow sphere about diameter:
- MOI of a rod of length L about centre perpendicular to length:
- MOI of a rod about one end perpendicular to length:
- Torque equals:
- Unit of torque is:
- Rotational analogue of Newton's second law:
- Angular momentum L equals:
- SI unit of angular momentum:
- Law of conservation of angular momentum states:
- An ice skater pulls arms in; her angular velocity:
- Relation between τ and L:
- Parallel axis theorem: I = I_cm + Md². Here d is:
- Perpendicular axis theorem applies to:
- Perpendicular axis theorem: I_z = :
- Radius of gyration k is defined by:
- A torque produces:
- MOI depends on:
- Kinetic energy of rotation equals:
- Work done by torque = :
- Power in rotation P = :
Question 1 of 250 correct so far