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DSE Physics Paper 1: Time in Section A, Method in Section B
Sixty per cent of the subject sits here: time in Section A, working in Section B
Section A of Paper 1 carries 21% of the subject and Section B another 39%, sixty per cent together, with Paper 2 electives and SBA making up the rest. Section A is lost to time and Section B to working: formula, substitution and unit earn the method marks, and the essay wants the conclusion before the reasoning.
How is DSE Physics Paper 1 assessed, and what does each part carry?
Section A (multiple-choice): Compulsory Part; 21% of the subject mark (21%); Section B (short, structured, essay): Compulsory Part; 39% of the subject mark, ending with an essay questio (39%); Paper 1 total: All questions compulsory; Paper 2 (Electives) is another 20% in 1 hour (60%)
Assessment at a glance (2027)
| Component | Content | Weighting | Duration |
|---|---|---|---|
| Section A (multiple-choice) | Compulsory Part; 21% of the subject mark | 21% | 35-40 min |
| Section B (short, structured, essay) | Compulsory Part; 39% of the subject mark, ending with an essay question | 39% | 100-110 min |
| Paper 1 total | All questions compulsory; Paper 2 (Electives) is another 20% in 1 hour (four topics at 10%, answer two) plus SBA 20% for school candidates | 60% | 2 h 30 min |
Cut the 150 minutes as 38 for Section A, 105 for Section B and 7 to check. Section B marks sit in the three steps formula, substitution, units – write all three and you keep method marks even if the number slips.
What each paper is actually testing
| Paper | Drill focus | How marks are lost |
|---|---|---|
| Section A (multiple-choice) | Formula and concept only; flag anything you cannot route | Overrunning in Section A on one graph, leaving half the time for ten items. |
| Section B (short, structured, essay) | Formula first, then substitute; keep units and significant figures | Formula correct but no substitution line, so the method marks go. |
| Paper 1 total | Keep 12-15 minutes for the essay question | Only the compulsory part drilled, leaving the other forty per cent untouched. |
What is each DSE Physics Paper 1 paper really testing, and what should you drill?
Section A (multiple-choice): Formula and concept only; flag anything you cannot route; Section B (short, structured, essay): Formula first, then substitute; keep units and significant figures; Paper 1 total: Keep 12-15 minutes for the essay question
Drill order: by topic, then by year, then the mark scheme
| Step | What you do | Why |
|---|---|---|
| 1. By topic | Work through each topic, starting with the paper that allows least help (no calculator / closed book) | Exposes what is genuinely not understood |
| 2. By year | Whole papers to time, one or two a week | Trains pace, stamina and question selection |
| 3. Mark scheme | Go through the marking scheme question by question and log the scoring steps you missed | Most lost marks are written wrong, not thought wrong |
Should drilling go by topic first or by year?
By topic first, then whole papers by year, then the mark scheme. The first third of the time goes topic by topic (8-10 years of the same topic back to back), the middle switches to timed whole papers, and the last fortnight only redoes the recurring errors from your log.
A 12-week drilling timetable
| Week | Phase | What to do |
|---|---|---|
| Weeks 1-3 | By topic: foundation | Topic by topic, starting with the easiest marks, building habits and recall |
| Weeks 4-6 | By topic: core | 8-10 years of the same topic back to back, errors classified by topic |
| Weeks 7-8 | By topic: advanced and electives | Elective and higher-order topics, now under time pressure |
| Weeks 9-10 | By year: timed papers | One full paper a week, timed, no reference materials |
| Week 11 | Mark scheme work | Question by question against the marking scheme; list the scoring steps you omitted |
| Week 12 | Plug holes and simulate | Only the recurring errors from your log, then one full exam simulation |
Subject-specific weighting for this timetable: Weeks 1-3: a self-built formula sheet, three columns per topic, formula, symbols with units, one known trap, listing only what actually slips.\nWeeks 4-6: twenty Section A items in fifteen minutes, with every miss redone on the spot and the cause written down.\nWeeks 7-9: Section B in a fixed format, formula, substitution, answer with unit, even when the arithmetic is mental.\nWeeks 10-12: two essay questions a week, conclusion first, then a full timed paper.
Use it properly: this is not a checklist to finish. Every week must keep time for redoing errors, or from week 9 you will be repeating the same batch.
Pacing
| Paper | Time | Suggested split |
|---|---|---|
| Section A (multiple-choice) | 35-40 min | 35-40 min |
| Section B (short, structured, essay) | 100-110 min | 100-110 min |
| Paper 1 total | 2 h 30 min | 150 min (about 40 for A and 105 for B) |
How should the time be split inside each DSE Physics Paper 1 paper?
Section A (multiple-choice): 35-40 min; Section B (short, structured, essay): 100-110 min; Paper 1 total: 150 min (about 40 for A and 105 for B)
The drilling mistakes that cost the most marks
| Mistake | What it looks like | What actually happens | Instead |
|---|---|---|---|
| Answers without formulas | Writing the number straight away | Structured physics marks are formula + substitution + answer | Open every part with the formula and what each symbol means |
| Units and significant figures | Bare numbers | Wrong or missing units and accuracy lose marks directly | Carry units through the substitution and check accuracy at the end |
| Treating the essay as a gap-fill | Two or three lines | The essay is marked per point with a reason | Give every point a reason and a course example |
| Mixing up series and parallel | Just adding resistances | Parallel resistance is always smaller than the smallest one | Decide series or parallel first, then add or take reciprocals |
The error log and the mark scheme
Three columns: the question and the working used; the step missing, formula, substitution, unit or direction; whether the cause was conceptual or arithmetic. Missing units and directions get their own tally, and a third repeat means rewriting the topic notes.
How many years should you drill?
Paper 1 is stable, with mechanics and electricity dominating year after year, so five to seven years covers most patterns; newly added topics need the official sample papers, with old items kept for concept practice.
How many years of past papers is enough?
Paper 1 is stable, with mechanics and electricity dominating year after year, so five to seven years covers most patterns; newly added topics need the official sample papers, with old items kept for concept practice.
Frequently asked questions
Is this page a mock paper or a drilling guide?
This is the DSE Physics Paper 1 drilling guide: assessment structure, drill order, a 12-week timetable, pacing, common mark losses and the error-log method. For questions with answers, use the DSE Physics Paper 1 mock papers linked under Related.
By topic or by year first?
By topic. Eight to ten years of the same topic back to back is what exposes repeating errors; going straight to whole papers just repeats the same batch under time pressure.
How should the error log be written?
Do not copy out questions. Per error record four things: question reference, which step failed (concept, wording, calculation), what the mark scheme requires, and the correct action next time.
Why lose marks when the mental arithmetic is right?
Usually a missing substitution line or unit, since method marks are awarded step by step regardless of a correct final answer.
Should the essay open with the reason or the conclusion?
Conclusion first, then the reasons in points, then a limitation, because the mark scheme ties the judgement to the reasoning.
Official references
| Resource | What to use it for |
|---|---|
| HKEAA 2027 HKDSE Physics Assessment Framework | Confirm Paper 1’s 60%, 2 h 30 min, Section A 21% and Section B 39% |
| https://www.tutorzone.com.hk/en-dse-physics-paper-1-drill-guide/ | Paper 1 drilling guide: pacing and structured-question writing |
| https://www.tutorzone.com.hk/en-dse-physics-paper-2-electives-drill-guide/ | Paper 2 (Electives) drilling guide |
Related: practice area · Paper 2 electives guide · Maths Paper 1 mock
Next step: find a tutor / register as a tutor
After drilling, the hard part is telling a conceptual error from a writing error. Tell us the year group, the school and your available times, and TutorZone will match you with a tutor who knows the HKEAA assessment requirements.
Demand for tutors in this subject is steady, and those who can explain the marking scheme and where marks are won are especially sought after. Register free; you pay only when a match succeeds.