This exam focus covers Exam Focus within Momentum for GCSE Physics. Revise Momentum in Forces for GCSE Physics with 13 exam-style questions and 6 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 10 of 12 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 10 of 12
Practice
13 questions
Recall
6 flashcards
🎯 Exam Focus
Frequently Examined
Momentum conservation calculations are a staple of AQA Physics Paper 1. Question types include:
- Calculate momentum — p = mv, always include direction and unit (kg m/s)
- Collision calculations — find velocity after collision using conservation of momentum
- Explosion calculations — find velocity of one piece given the other
- Explain conservation of momentum — link to Newton's Third Law for 3+ marks
- Vector sign convention — correctly assign positive/negative to directions
Common calculation trap: In a head-on collision, one object moves in the negative direction — assign it a negative velocity BEFORE calculating. Missing the negative sign is the most common error in momentum questions.