Complete O Level & IGCSE Physics Revision Marathon Part 1 | 5054/0625

O Level Physics 5054 & IGCSE 0625 revision marathon Part 1 in Urdu: motion graphs, Newton's laws, braking distance, momentum | Sir Mahad Amer 📲 Live classes & admissions — WhatsApp Sir Mahad Amer: wa.me/message/CKEDMPETUF4KA1 ▶ Next: Part 2 – Nuclear, Space, Waves & Sound Revision    • Nuclear, Space, Waves & Sound Revision | O...   ▶ Oct/Nov 2026 final revision playlist (O Level & IGCSE):    • Oct/Nov 2026 Final Revision | O Level & I… Recorded live on 3 May 2026 · Part 1 of 2 (59 min) · Part 2 is in the same playlist A recorded live revision marathon of key O Level and IGCSE Physics topics, streamed before the May/June 2026 exams and useful for any session. Use it for a fast recap before your papers; Edexcel International GCSE Physics students can use it too. What you'll revise across the marathon (Parts 1 & 2): • Motion and forces – scalars and vectors, distance–time and speed–time graphs, Newton's laws, friction, terminal velocity, thinking and braking distance • Momentum, impulse and collisions; kinetic and gravitational potential energy, moments, power and efficiency • Waves and sound – transverse and longitudinal waves, v = fλ, diffraction, speed of sound, echoes, ultrasound and electromagnetic waves • Electricity – e.m.f. and resistance questions using V = IR • Nuclear physics – atomic structure, alpha-particle scattering, α, β and γ radiation, decay equations, half-life, fission and fusion • Space physics – orbits and orbital speed, the Solar System, galaxies, light-years, life cycle of stars, redshift and the Big Bang ⏱️ Chapters: 0:00 Introduction and Plan for the Session 2:17 Scalar and Vector Quantities: Displacement 4:00 Direction and Sign Convention 6:00 Circular Motion: Why the Object Accelerates 7:00 Acceleration and Deceleration 8:00 Distance-Time Graphs: Gradient Gives Speed 9:38 Q: Distance-Time Graph for a Bus 11:00 Comparing Speeds Using the Gradient 13:00 Maximum Speed from the Steepest Gradient 14:00 Calculating Speed from the Gradient 15:00 Average Speed: A Common Mistake 19:53 Speed-Time Graphs: Area and Gradient 21:00 Speed-Time Graphs with Changing Acceleration 21:55 Q: Car Approaching Traffic Lights 23:00 Q: Constant Deceleration of the Car 24:00 Distance Travelled from Area Under the Graph 26:13 Forces and Their Effects 27:00 Equilibrium and Newton's Second Law 27:58 Newton's Third Law 29:00 Weight, Normal Reaction and Balanced Forces 📲 Live classes & admissions — WhatsApp Sir Mahad Amer: wa.me/message/CKEDMPETUF4KA1 30:00 Friction and Heating 31:00 Circular Motion: Centripetal Force 32:00 Free Fall and Terminal Velocity 33:29 Q: Balanced Forces and Friction 35:12 Q: Thinking Distance and Braking Distance 37:00 Factors Affecting Braking Distance 40:00 Momentum and Change in Momentum 42:00 Impulse and Change in Momentum 43:00 Conservation of Momentum 44:00 Q: Velocity After a Collision 45:24 Q: Likely Exam Question on Momentum 47:00 Q: Collision Between Two Trains 51:00 Kinetic Energy 52:00 Q: Salmon Jumping a Waterfall 53:00 Maximum Height: Kinetic to Gravitational PE 54:00 Key Formulas: Speed, Acceleration and Weight 55:00 Principle of Moments 56:00 Power and Efficiency 56:58 Introduction to Nuclear Physics ▶ Full playlist:    • Physics Revision Marathons & Live Streams… 📚 Related:    • O Level & IGCSE Physics Past Papers Solve… 🔗 Links Definitions: drive.google.com/file/d/1ZPe25SaYxffqSQIlGsCwRd79x… Practice paper: drive.google.com/drive/folders/1irgPvxeuc33EfKCOlW… Yeh revision Urdu mein hai, motion graphs, Newton ke laws, braking distance, momentum aur energy ke sawal jaldi dohra kar ke tayari mazboot karein. ━━━━━━━━━━━━━━ 🎓 Study with Sir Mahad Amer — Cambridge-certified Physics teacher (MSc Physics), founder of MAC Education Network (Physics with MAC). Live online classes + a complete recorded course for O Level Physics (5054) & IGCSE Physics (0625) — structured lessons, notes, topical past papers and doubt-clearing sessions. 7+ years • 1,000+ students • 90% A*/A 💬 Enrol, batch timings & fees (WhatsApp): wa.me/message/CKEDMPETUF4KA1 📘 Free notes & past papers: sirmahadamer.com/resources/ 🌐 Website: sirmahadamer.com/ 📸 Instagram: www.instagram.com/mahad__amer/ 👍 Facebook: www.facebook.com/MahadAmer2000 #OLevelPhysics #IGCSEPhysics #PhysicsRevision #5054 #PhysicsInUrdu