1.2P Additional mechanics units
Additional mechanics units describe rotational effects and moving mass, using newton metres for moments and kilogram metres per second for momentum.
- Syllabus
- 2024
- Objective
- 1.2
- Level
- —
Exam analysis
Chance of appearing3%of analysed past papers
Latest appearanceJune 2022
Most common paperPaper2P
Typical marks1
Common command terms
- Identify
Recent exam appearances
June 2022Paper2P [null] · TZ02(a)[ 1 ]1.2P Additional mechanics units
Practice this objective
Coverage 2022–2022 · Updated 16 Jul 2026
1.2P Additional mechanics units
Use the following units: newton metre (Nm), kilogram metre/second (kg m/s)
Concept essentials
- A moment uses newton metres because it combines force with distance from a turning point.
- Momentum uses kilogram metres per second because it combines mass with velocity.
- The order and powers inside a compound unit must match the physical quantity relationship.
- A force-like unit with seconds squared does not represent momentum.