DP Physics (first assessment 2025)
Question 23M.2.SL.TZ1.b
| Date | May 2023 | Marks available | [Maximum mark: 2] | Reference code | 23M.2.SL.TZ1.b |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | Explain | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 2]
23M.2.SL.TZ1.b
To determine T more precisely, the student measures the total time for 20 oscillations and divides by 20.
Explain why this is preferable to measuring the time for just one oscillation.
[2]
Markscheme
it reduces «the random» error/uncertainty ✓
by a factor of 20 «compared to that in a single period measurement» ✓
For MP1, allow increasing accuracy/precision.
Award [0] for answers related to number of trials, 20 measurements of one period.
