IB Physics A.3 Work, Energy and Power | Past Paper Walkthrough | GradePod (SL & HL) скачать в хорошем качестве

IB Physics A.3 Work, Energy and Power | Past Paper Walkthrough | GradePod (SL & HL)

This is the past paper walkthrough for A.3 Work, Energy and Power in IB Physics. I work through 14 exam questions taken from real past papers - multiple choice questions from Paper 1A and calculate-style questions from Paper 2. For each one I show you exactly how to approach it, which technique to use, and how the mark scheme thinks. If you haven't watched the concept tutorial yet, start there first: 👉 A.3 Work, Energy and Power Concept Tutorial:    • IB Physics A.3 Work, Energy and Power | Co...   Want to try these questions yourself before watching the solutions? They're all in the GradePod Exam Pack, sorted by topic with full mark schemes. 👉 Topic page + free checklist: https://www.gradepod.com/topics/a3-wo... ━━━━━━━━━━━━━━━━━━━━━━━ QUESTIONS COVERED IN THIS VIDEO ━━━━━━━━━━━━━━━━━━━━━━━ 0:00 Introduction — what's in this video and how to use it 0:01 Q1 — Stone falling in oil: energy changes with friction 2:17 Q2 — Spring system: elastic PE to KE and gravitational PE 5:12 Q3 — Student climbing ladder: power against gravity 6:08 Q4 — Skier on slope: gravitational PE to KE (show v = 12 m/s) 9:57 Q5 — Motor lifting mass: efficiency using P = Fv 10:03 Q6 — Object falling on moon: ratio of KE to PE at H/4 11:40 Q7 — Spring extension X to X/4: work done 13:02 Q8 — Ball thrown upwards: variation of KE with time 14:13 Q9 — Tennis ball and racket: impulse, average force, work done 18:27 Q10 — Force-distance graph: speed from area = work done 19:47 Q11 — Cyclist up hill: efficiency using P = Fv 20:45 Q12 — Ball dropped and rebounded: KE loss, average force 29:10 Q13 — Specific energy vs energy density ratio 30:01 Q14 — Sankey diagram: nuclear power station thermal loss 30:52 Closing advice ━━━━━━━━━━━━━━━━━━━━━━━ WANT THE QUESTIONS TO PRACTISE YOURSELF? ━━━━━━━━━━━━━━━━━━━━━━━ The GradePod Exam Pack gives you all the past paper questions for every topic, sorted and ready to use: ✓ Topic-by-topic past paper questions. Do them before watching this video! ✓ Full mark schemes for every question ✓ Knowledge questions to test your understanding of the concepts ✓ Revision note template, mock exam and annotated data booklet One-time purchase. £39. Instant download. Every topic included. 👉 Get the Exam Pack: https://www.gradepod.com/exam-pack ━━━━━━━━━━━━━━━━━━━━━━━ ABOUT GRADEPOD ━━━━━━━━━━━━━━━━━━━━━━━ I'm Sally Weatherly, an IB Physics teacher since 2004, Fellow of the Institute of Physics, and founder of GradePod. Every tutorial is free. No login, no catch. 👉 All 24 topics, free: https://www.gradepod.com/topics ━━━━━━━━━━━━━━━━━━━━━━━ #IBPhysics #WorkEnergyPower #IBPhysicsPastPapers #IBPhysicsRevision #GradePod #ConservationOfEnergy #KineticEnergy #IB2025