A.4.10 (HL)—Angular momentum conservation Topic Practice
A.4.10 (HL)—Angular momentum conservation Topic Practice
Practise deciding when angular momentum is conserved and using it to compare speeds before and after changes in radius or collisions.
How this is tested
- decide if angular momentum is conserved by checking whether the chosen system has zero external torque
- apply conservation of angular momentum in collisions or sticking problems to find a new angular speed
- explain speed changes in orbits or spinning bodies by using L = mvr or L = Iω when r or I changes