DP Physics (first assessment 2025)
Question 20N.2.HL.TZ0.7a
| Date | November 2020 | Marks available | [Maximum mark: 3] | Reference code | 20N.2.HL.TZ0.7a |
| Level | HL | Paper | 2 | Time zone | TZ0 |
| Command term | Explain | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 3]
20N.2.HL.TZ0.7a
(a)
Explain the direction in which the person-turntable system starts to rotate.
[3]
Markscheme
«person rotates» anticlockwise ✓
the person gains angular momentum «in the opposite direction to the new wheel motion» ✓
so that the total angular momentum is conserved ✓
OWTTE
Award [1 max] for a bald statement of conservation of angular momentum
