DP Physics (last assessment 2024)
Question 22N.2.SL.TZ0.b.i
| Date | November 2022 | Marks available | [Maximum mark: 2] | Reference code | 22N.2.SL.TZ0.b.i |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Determine | Question number | b.i | Adapted from | N/A |
b.i.
[Maximum mark: 2]
22N.2.SL.TZ0.b.i
A string of length 0.80 m is fixed at both ends. The diagram shows a standing wave formed on the string. P and Q are two particles on the string.
It is suggested that the speed c of waves in the string is related to the tension force T in the string according to the equation T = ac2, where a is a constant.
Determine the fundamental SI unit for a.
[2]
Markscheme
kg m s−2 OR m2 s−2 seen ✓
kg m−1 ✓
Award [2] for a BCA.
Examiners report
Students seem to be well prepared for this sort of question, as it was high-scoring.
