DP Physics (first assessment 2025)
Question 23M.2.SL.TZ1.1bi
Date | May 2023 | Marks available | [Maximum mark: 4] | Reference code | 23M.2.SL.TZ1.1bi |
Level | SL | Paper | 2 | Time zone | TZ1 |
Command term | Show | Question number | i | Adapted from | N/A |
i.
[Maximum mark: 4]
23M.2.SL.TZ1.1bi
(i)
Show that the collision is elastic.
[4]
Markscheme
Use of conservation of momentum. ✓
Rebound speed = 2.16 «m s−1» ✓
Calculation of initial KE = « × 0.800 × 4.3172» = 7.46 « J » ✓
Calculation of final KE = « × 0.800 × 2.162 + × 2.40 × 2.162» = 7.46 «J» ✓
«hence elastic»
