DP Physics (first assessment 2025)
Question 22N.2.SL.TZ0.b
| Date | November 2022 | Marks available | [Maximum mark: 3] | Reference code | 22N.2.SL.TZ0.b |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Explain | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 3]
22N.2.SL.TZ0.b
Explain, by reference to the vertical forces, how the raindrop reaches a constant speed.
[3]
Markscheme
Identification of air resistance/drag force «acting upwards» ✓
«that» increases with speed ✓
«until» weight and air resistance cancel out
OR
net force/acceleration becomes zero ✓
A statement as “air resistance increases with speed” scores MP1 and MP2.
Examiners report
This was very well answered with most candidates scoring 3. The MP usually missed in candidates scoring 2 marks was MP2, to justify the variation of the magnitude of air resistance, although that rarely happened.
