Physics A-Level
Conservation of angular momentum
What Conservation of angular momentum means in Physics A-Level, as defined for AQA.
Definition of Conservation of angular momentum
Check what you remember
Read the wording for your board, then hide it and explain Conservation of angular momentum in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
If the resultant external torque on a system is zero, its total angular momentum remains constant, so I₁ω₁ = I₂ω₂.
Topics that use Conservation of angular momentum
- Angular momentum (A-level only) (AQA A-Level)
Related terms
- Angular momentum
- Angular velocity
- Frictional torque
- Moment of inertia
- Rotational kinetic energy
- Angular impulse
- Change in angular momentum
- Newton's second law for rotation
Using Conservation of 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.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge