DP Physics (last assessment 2024)
Question 19M.2.HL.TZ2.di
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.HL.TZ2.di |
| Level | HL | Paper | 2 | Time zone | TZ2 |
| Command term | Draw | Question number | di | Adapted from | N/A |
di.
[Maximum mark: 1]
19M.2.HL.TZ2.di
The sound wave in air in (c) enters a pipe that is open at both ends. The diagram shows the displacement, at a particular time T, of the standing wave that is set up in the pipe.
A particular air molecule has its equilibrium position at the point labelled M.
On the diagram, at time T, draw an arrow to indicate the acceleration of this molecule.
[1]
Markscheme
horizontal arrow «at M» pointing left ✔
Examiners report
Very few candidates could interpret this situation and most arrows were shown in a vertical plane.
