DP Physics (first assessment 2025)
Question 19M.1B.SL.TZ1.1b.i
| Date | May 2019 | Marks available | [Maximum mark: 2] | Reference code | 19M.1B.SL.TZ1.1b.i |
| Level | SL | Paper | 1B | Time zone | TZ1 |
| Command term | Explain, State | Question number | b.i | Adapted from | N/A |
b.i.
[Maximum mark: 2]
19M.1B.SL.TZ1.1b.i
(b.i)
There is an advantage and a disadvantage in using two masses that are almost equal.
State and explain the advantage with reference to the magnitude of the acceleration that is obtained.
[2]
Markscheme
the acceleration would be small/the time of fall would be large ✔
easier to measure /a longer time of fall reduces the % error in the time of fall and «hence acceleration» ✔
Do not accept ideas related to the mass/moment of inertia of the pulley.
Examiners report
Q 1 b) was quite well answered. Only the weakest candidates presented difficulty in understanding simple mechanics.
