Pietro Meloni Mentor

IGCSE Topic Guide

IGCSE Momentum: Conservation of Momentum, Collisions and Impulse

Momentum is a core IGCSE Physics topic that combines conceptual understanding with calculation skills. I help students master the conservation of momentum, analyse collisions and apply impulse concepts — all with a focus on the exam techniques that earn full marks.

Understanding Momentum and Its Conservation

Momentum (p = mv) is conserved in all collisions when no external forces act. I teach students to set up conservation equations correctly, handle direction carefully with signs, and distinguish between elastic and inelastic collisions. These skills are essential for multi-mark IGCSE questions.

Impulse, Force and Time Calculations

Impulse (F × t = change in momentum) links force, time and momentum change. IGCSE exams often test this through car safety features, sports scenarios and force-time graphs. I ensure students can interpret these graphs, calculate areas and explain real-world applications clearly.

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