DP Physics (first assessment 2025)
Question 23M.2.SL.TZ2.i
| Date | May 2023 | Marks available | [Maximum mark: 3] | Reference code | 23M.2.SL.TZ2.i |
| Level | SL | Paper | 2 | Time zone | TZ2 |
| Command term | Calculate, State | Question number | i | Adapted from | N/A |
i.
[Maximum mark: 3]
23M.2.SL.TZ2.i
Calculate the absolute uncertainty in for Δp = 30 kPa. State an appropriate number of significant figures for your answer.
[3]
Markscheme
15 % seen anywhere ✓
«Δ(F3) =» 39.4 × 105 × 0.15 = 5.9 × 105 ✓
±6 × 105 ✓
MP1 is for the propagation of 5 %. It can be shown differently, e.g. 3 × 5% Allow students to use 40 × 105 (from the graph).
Award MP3 for any uncertainty rounded to 1 significant digit
Award [3] for a BCA.
Allow ECF from MP1 and MP2
