45 HSC Exam Practice
Model Solutions & Answer Technique
45.1 Overview
This section provides complete model solutions for NSW HSC Physics examinations (2019–2024), structured using the UNBLUF-P house style protocol.
How to use this section
- Start with the House Style Guide — learn the UNBLUF-P protocol before attempting questions
- Practice by year — work through full papers under timed conditions
- Review solutions — compare your answers mark-by-mark
- Identify patterns — notice recurring question types and marking expectations
45.2 Coverage Summary
| Statistic | Count |
|---|---|
| Years covered | 6 (2019–2024) |
| Total questions | 199 |
| Multiple choice (Q1–Q20) | 120 |
| Extended response (Q21+) | 79 |
| Marks per paper | 100 |
45.3 The UNBLUF-P Protocol
Before diving into solutions, master the house style:
- UN — Underline + Number requirements during reading time
- BLUF — Bottom Line Up Front (answer first, boxed)
- P — Proof (minimal working that earns marks)
For MCQs, the protocol adds:
- Underline the command and target quantity
- Eliminate distractors with one-line physics checks
- Fast solve to separate remaining options
- Commit and move on
See the House Style Guide for full details.
45.4 Solutions by Year
45.4.1 Year 12 HSC Examinations
| Year | Questions | MCQ | Extended | Key Topics |
|---|---|---|---|---|
| 2024 | 33 | 20 | 13 | DC motors, Hubble’s law, electron deflection, eddy currents |
| 2023 | 34 | 20 | 14 | Chadwick’s neutron, photoelectric effect, Lenz’s law |
| 2022 | 35 | 20 | 15 | Orbital energy, double-slit, Bohr model, eddy braking |
| 2021 | 35 | 20 | 15 | Faraday’s law, special relativity, Pu-238 decay |
| 2020 | 27 | 20 | 7 | Wien’s law, Standard Model, black body radiation |
| 2019 | 35 | 20 | 15 | Escape velocity, Maxwell’s EM theory, time dilation |
45.5 Module Distribution
Each HSC paper covers all four Year 12 modules:
| Module | Typical Weighting | Core Topics |
|---|---|---|
| M5 Advanced Mechanics | ~20% | Projectile motion, circular motion, gravity, orbits |
| M6 Electromagnetism | ~25% | Motor effect, induction, transformers, charged particles |
| M7 Nature of Light | ~25% | EM spectrum, wave-particle duality, photoelectric, relativity |
| M8 Universe to Atom | ~30% | Atomic models, nuclear physics, spectra, cosmology |
45.6 Mark Allocation Patterns
Understanding how marks are distributed helps you budget time:
Typical paper structure
- Section I (Q1–Q20): 20 marks, ~35 minutes
- Section II (Q21+): 80 marks, ~140 minutes
- Extended responses range from 2–9 marks each
45.7 Study Strategy
- Timed practice — Complete a full paper in 3 hours
- Self-mark — Use solutions to award yourself marks honestly
- Gap analysis — Track which modules/topics need more work
- Technique refinement — Focus on UNBLUF-P structure, not just content