Momentum as a Vector & Change in Mass | O Level/IGCSE Physics 5054/0625 | Momentum L2

Momentum as a vector quantity: the sign convention (right/up positive, left/down negative) with +6 N s and −6 N s examples. Change in momentum Δp = final − initial momentum, the three ways momentum changes, and change in mass Δp = (mf − mi)v with a rocket-burning-fuel example, for O Level 5054 / IGCSE 0625. Timestamps: 00:00 Momentum as a vector: magnitude & direction 01:03 Sign convention: positive & negative 01:52 Examples: +6 N s and −6 N s 04:51 Change in momentum Δp = pf − pi 06:47 Three ways to change momentum 08:57 Change in mass: Δp = (mf − mi)v 10:04 Example: rocket burning fuel ▶ Full O Level/IGCSE Physics 2026-27 course:    • 2026-27 Course | Complete Syllabus | O Lev...   ⏮ Previous lesson (Momentum L1):    • What is Momentum? p = mv Explained | L1 O ...   ⏭ Next lesson (Momentum L3):    • Change in Momentum Explained: Δp = m(v − u...   Enrol in online O Level / IGCSE Physics (5054/0625) classes with Sir Haris: WhatsApp: +92 312 8594118 Instagram: @phywithsirharis #OLevelPhysics #IGCSEPhysics #Momentum