Question 22M.2.HL.TZ1.d
| Date | May 2022 | Marks available | [Maximum mark: 2] | Reference code | 22M.2.HL.TZ1.d |
| Level | HL | Paper | 2 | Time zone | TZ1 |
| Command term | Describe | Question number | d | Adapted from | N/A |
A mass–spring system oscillates horizontally on a frictionless surface. The mass has an acceleration when its displacement from its equilibrium position is .
The variation of with is modelled in two different ways, A and B, by the graphs shown.
The graph shows for model A the variation with of elastic potential energy Ep stored in the spring.
Describe the graph for model B.
[2]
same curve OR shape for small amplitudes «to about 0.05 m» ✓
for large amplitudes «outside of 0.05 m» Ep smaller for model B / values are lower than original / spread will be wider ✓ OWTTE
Accept answers drawn on graph – e.g.
Candidates were generally successful in describing one of the two aspects of the graph of B compared to A, but few were able to describe both. It should be noted that this is a two mark question, so candidates should have considered the fact that there are two distinct statements to be made about the graphs. Examiners did accept clearly drawn graphs as well for full marks.
