Angular momentum
What Angular momentum means in Physics A-Level, as defined for AQA.
Definitions of Angular momentum
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Angular momentum in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The product of moment of inertia I and angular velocity ω, so L = Iω, with units kg m² rad s⁻¹ or kg m² s⁻¹.
L = Iω, and it is conserved when the net external torque is zero.
Topics that use Angular momentum
- Angular momentum (A-level only) (AQA A-Level)
Related terms
- Angular velocity
- Frictional torque
- Moment of inertia
- Rotational kinetic energy
- Angular impulse
- Change in angular momentum
- Conservation of angular momentum
- Newton's second law for rotation
Using Angular momentum in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge