A paper-by-paper guide to an A in H2 Physics (9478) for 2027: what each paper tests, the topics that cost the most marks, how to use the data and formulae list, Paper 4 spreadsheet skills, and a 12-week plan to the exam.
To score an A for H2 Physics, secure the definitions and recall equations early, practise applying principles to unfamiliar contexts for Paper 3 (35% of the grade), and treat the Paper 4 practical, including its spreadsheet work, as a full fifth of your result rather than an afterthought.
This guide is built on SEAB's 2027 H2 Physics syllabus (9478). It covers what each paper tests, where students tend to lose marks, how to use the formula list, and a JC1 to JC2 plan that ends with the last 12 weeks before the exam. For the full topic list in one place, see our JC2 H2 Physics syllabus page.
Which syllabus are you sitting?
SEAB's list of syllabuses for 2026 shows two H2 Physics syllabuses side by side: 9478 and the older 9749, which it marks as having its last exam in 2026. For 2027 and later, school candidates sit 9478 only. Check that your notes, ten-year series and assessment books are written for 9478, not 9749.
A few rules from the syllabus itself:
It builds on O-Level Physics and assumes you know it, either as a pure subject or within combined science.
You cannot take H1 and H2 Physics at the same time. H1 Physics (8867) leaves out the Waves and Thermal Physics sections.
Any calculator you bring must be on SEAB's list of approved calculators.
H2 Physics also matters for university. NUS's programme prerequisites (accurate as of December 2025) list H2 Chemistry plus either Biology or Physics for Medicine and Dentistry, and note that Computer Engineering students admitted without H2 Physics must take a Physics bridging course. Our H1 and H2 subject combination guide covers how Physics fits with your other subjects.
The four papers at a glance
compulsory papers
4
total raw marks
230
Paper 3, the largest share
35%
Paper 4 practical
20%
Paper
Format
Marks
Time
Weighting
Paper 1
30 multiple-choice questions, four options each
30
1 h
15%
Paper 2
Structured questions plus one or two data-based questions worth 20 to 25 marks, all compulsory
75
2 h
30%
Paper 3
Section A: 55 marks of compulsory structured questions. Section B: one of two 20-mark questions
75
2 h
35%
Paper 4
Practical in two sections, with spreadsheet data processing
50
2 h 30 min
20%
SEAB also weights the paper by skill, not just by paper. Knowledge with understanding is 36% (Papers 1 to 3). Handling, applying and evaluating information is 44% (Papers 1 to 3). Experimental skills are 20% (Paper 4). In other words, more of the grade rewards applying physics than recalling it.
How raw marks turn into weighted marks
Each paper is scaled to its weighting. Here is a worked example with made-up scores, to show where the marks come from:
Paper
Raw score
Weighted share
Paper 1
24 out of 30
24 ÷ 30 × 15 = 12.0%
Paper 2
55 out of 75
55 ÷ 75 × 30 = 22.0%
Paper 3
50 out of 75
50 ÷ 75 × 35 = 23.3%
Paper 4
38 out of 50
38 ÷ 50 × 20 = 15.2%
Total
72.5%
One raw mark on Paper 1 is worth 0.5% of the grade, while one raw mark on Paper 4 is worth 0.4% and one on Paper 3 about 0.47%. This is arithmetic, not a grade prediction. SEAB states that grading is not based on fixed cut-off marks or a fixed percentage of candidates, so no percentage guarantees an A. Our A-Level grading guide explains how grades are set.
What the syllabus covers: six sections, 20 topics
The 9478 syllabus is organised into six sections. The syllabus threads three conceptual strands through all of them: motion, forces and energy. It also asks you to bring knowledge from different areas together in a single question, which is why Paper 2 and Paper 3 mix topics.
Section
Topics
Where students tend to struggle
I Foundations of Physics
1 Quantities and Measurement, 2 Forces and Moments, 3 Motion and Forces, 4 Energy and Fields
Uncertainty in derived quantities, free-body diagrams and vector triangles for equilibrium, reading gradients and areas from graphs with non-uniform acceleration
Projectiles with air resistance (qualitative), field versus potential in gravitation, signs of potential energy, phase and energy graphs in simple harmonic motion, damping and resonance
III Waves
10 Wave Motion, 11 Superposition
Displacement against time versus displacement against position graphs, path and phase difference, standing waves, single slit, grating and the Rayleigh criterion
IV Thermal Physics
12 Temperature and Ideal Gases, 13 Thermodynamic Systems
The sign convention in the first law, ΔU = Q + W, where W is work done on the system
Exponential charge and discharge, potential gradients, directions in magnetic force questions, explaining Lenz's law in full sentences
VI Modern Physics
19 Quantum Physics, 20 Nuclear Physics
Wavefunctions and probability density, including normalisation for square and sinusoidal wavefunctions, a particle in a one-dimensional infinite square well, the uncertainty principle, binding energy per nucleon
The hardest areas, and why
These are the topics where the syllabus asks for the most reasoning rather than recall:
Electromagnetic induction. You need Faraday's law for the size of the induced e.m.f. and Lenz's law for its direction, and you must explain the direction in words. One-word answers lose marks.
Fields (gravitational and electric). The two topics mirror each other. Field strength is the negative potential gradient, potential is negative for attractive fields, and the formula list only gives potential, not field strength. Learn them as a pair.
Oscillations and superposition. Questions switch between equations, graphs and words. You need to read a phase difference off a graph and turn it into a path difference.
Quantum physics. The 9478 outcomes include wavefunctions, the square of the amplitude as a probability density, normalisation, standing-wave solutions for a particle in a box and the energy levels En = h²n²/8mL². Students used to O-Level atomic models often find this the least intuitive section.
RC circuits and capacitance. Exponential decay needs log manipulation, and the same maths returns in radioactive decay.
A JC1 to JC2 timeline for the 2027 exam
School promotional exams and preliminary exams are set by each JC, so the exact weeks differ from school to school. SEAB has not yet published the 2027 A-Level timetable, so the national dates below are expected windows, with the 2026 actual dates beside them.
JC1 Terms 1 and 2 (2026)Foundations and mechanicsMeasurement and uncertainty, forces, kinematics, energy, then projectiles, collisions and circular motion. Learn the recall equations as you meet them.
JC1 second half (2026)Fields, waves and thermalGravitational fields, oscillations, waves and superposition, thermal physics, as your school schedules them.
End of JC1 (school-set)Promotional examSet by your JC. Use the script to list your weakest three topics before the December holidays.
December holidaysClose the gapsRedo promo questions you lost marks on and preview electric fields and circuits.
JC2 Terms 1 and 2 (2027)Electricity, magnetism and modern physicsElectric fields, capacitance, circuits, electromagnetism, induction, quantum and nuclear physics. Start timed Paper 3 practice.
Mid JC2 (school-set)PrelimsSet by your JC. Mark every script against the paper weightings.
Mid to late Oct 2027 (expected)Paper 4 practicalThe 2026 Physics practical was on Mon 19 Oct 2026. Confirm 2027 dates when SEAB releases the timetable.
Nov 2027 (expected)Written papersPapers 1, 2 and 3. In 2026, written A-Level papers ran into November, with the last papers on 27 Nov 2026.
Late Feb 2028 (expected)ResultsThe 2026 results are tentatively due between Fri 19 and Tue 23 Feb 2027.
You have 60 minutes for 30 questions, which is 2 minutes a question. Every option is a direct choice from four.
Do a first pass and answer what you can in under a minute. Mark the rest and return.
Use units to eliminate options. The syllabus expects you to check equations for homogeneity using SI base units, and that same skill rules out wrong answers fast.
Estimate before you calculate. If an option is a thousand times too big, cross it out.
Watch "which is not correct" wording. Underline the negative.
Paper 2: structured and data-based questions (30%)
Two hours for 75 marks gives about 1.6 minutes a mark. The data-based question, worth 20 to 25 marks, often presents an unfamiliar context with graphs or tables.
Read the whole data-based question first. Later parts often depend on a value or graph from earlier parts.
When asked to determine a quantity from a graph, draw a large gradient triangle and show the coordinates you used.
The mark value tells you how much to write. A 1-mark "state" needs a short answer. A 3-mark "explain" needs a chain of reasoning, usually three linked points.
Paper 3: where the A is decided (35%)
Paper 3 is the largest paper, and both sections include questions that bring together knowledge from different parts of the syllabus. A Section B question is worth 20 marks, which at 1.6 minutes a mark is about 32 minutes. Plan your time around that.
Choose Section B in two minutes. Read both questions fully, then pick the one where you can do the later, high-mark parts, not just the opening definitions.
Write the principle first. Start a calculation with the law you are using, for example "by conservation of momentum" or "gain in kinetic energy equals loss in potential energy". Examiners can award method marks even if the final number is off.
Expect the unfamiliar. The syllabus says questions testing application may use information that is new to you. Practise by asking, for any new context, which conservation law or field idea applies.
Answer "suggest" and "deduce" on their own terms. SEAB's glossary says "deduce" means making a logical connection from information given, not recalling an answer, and "suggest" can mean there is no single right answer.
Paper 4: the practical (20%)
Paper 4 has two sections. You get 1 hour 15 minutes with the apparatus for each, and you are told which section to attempt first. You cannot refer to notes or textbooks. Each candidate has a computer with spreadsheet software and a quick reference guide for the whole exam.
The four skill areas:
Skill area
What you must do
Share of grade
Planning (P)
Define the problem, give a clear procedure, explain how the data leads to a conclusion, assess risks and precautions
4%
Manipulation, measurement and observation (MMO)
Handle apparatus well, record measurements to a suitable precision, spot anomalous readings
16% across MMO, PDO and ACE
Presentation of data and observations (PDO)
Tables with units and consistent decimal places or significant figures, processed data to show trends
Analysis, conclusions and evaluation (ACE)
Interpret data, draw conclusions, identify significant errors and limitations, suggest specific improvements
Spreadsheet skills for the practical
The 9478 syllabus lists what you must be able to do in the spreadsheet. Practise each one until it is routine:
1Get data inImport an xlsx data file, or type in your own readings.
2Write formulaeEnter a formula once and copy it down a column. Set the number format so values show the right significant figures.
3Use radiansSpreadsheet sine, cosine and tangent work in radians. Convert degrees first, or every trigonometric value will be wrong.
4Use logs and powersUse lg, ln and exponentials, and read scientific notation such as 3.00E+14.
5Plot and fitPlot a labelled line graph from selected data, adjust both axes, add a linear trendline and display its equation.
6Areas and gradientsFind the area under a curve by adding rectangles or trapezia, and a gradient at a point from a small change in y over a small change in x.
The trendline equation gives you a gradient and intercept, but you still need to link them to the physics. If you plot lg T against lg L, for example, the gradient is the power in the relationship.
Practical skills that win marks
A worked uncertainty example
Suppose a question gives T = 2π√(L/g) for a pendulum and you measure L = 0.800 ± 0.002 m and T = 1.80 ± 0.02 s.
Rearrange: g = 4π²L ÷ T² = 39.48 × 0.800 ÷ 3.24 = 9.75 m s⁻².
Fractional uncertainty in L: 0.002 ÷ 0.800 = 0.0025.
Absolute uncertainty: 9.75 × 0.0247 = 0.24, rounded to one significant figure as 0.2.
Final answer: g = (9.7 ± 0.2) m s⁻². The value is rounded to match the uncertainty.
The syllabus asks for exactly this: adding absolute or fractional uncertainties, or using numerical substitution. No statistics are needed.
The planning question
The planning task is set in the context of the syllabus and may ask you to analyse a proposed plan or given data. A strong plan covers:
the independent and dependent variables, and what you keep constant and how
the apparatus, with how you measure each quantity
the procedure in order, including repeats
how you will process the data, usually by rearranging into y = mx + c and plotting a straight-line graph
the risks and specific precautions.
Using the data and formulae list
The syllabus prints its data and formulae list as pages 2 and 3 of Papers 1, 2 and 3. Download our copy of the H2 Physics data and formulae list (9478) and keep it beside you every time you practise, so you learn exactly what is there and what is not.
On the list (given in the paper)
Not on the list (you must recall)
Constants: c, e, h, u, mₑ, mₚ, R, Nₐ, k, G, g, μ₀ and ε₀
F = ma and Hooke's law, F = kx
s = ut + ½at² and v² = u² + 2as
Eₖ = ½mv² and Eₚ = mgh
W = pΔV, p = F/A, T/K = T/°C + 273.15, p = ⅓(Nm/V)⟨c²⟩ and mean kinetic energy ⟨Eₖ⟩ = (3/2)kT
v = rω and centripetal acceleration a = rω² = v²/r
Gravitational potential φ = -GM/r
Newton's law of gravitation and g = GM/r²
Electric potential V = Q/4πε₀r
Coulomb's law and E = Q/4πε₀r²
Simple harmonic motion: x = x₀ sin ωt, v = v₀ cos ωt
v = fλ, double-slit ax = λD, grating a sin θ = nλ
Current I = nAvq, resistors and capacitors in series and parallel
pV = NkT and the first law ΔU = Q + W
Capacitor energy, charging, discharging and τ = RC
E = hf, λ = h/p and E = mc²
Magnetic flux density for a wire, coil and solenoid
Malus' law and the Rayleigh criterion
En = h²n²/8mL², x = x₀e^(-λt), λ = ln 2 ÷ t½
The right-hand column comes from outcomes the syllabus says you must "recall and use". Make a one-page sheet of them and test yourself weekly from JC1.
A worked formula-list example
A 470 μF capacitor discharges through a 100 kΩ resistor. How long until its charge halves?
From the list, τ = RC = 100 000 × 0.000470 = 47 s.
From the list, Q = Q₀e^(-t/RC). Set Q = ½Q₀, so t = RC × ln 2 = 47 × 0.693 = 32.6 s, about 33 s.
The list gives you both equations, but not the step of taking natural logs. That algebra is yours to bring.
Common mark losses
Most lost marks are habits that targeted practice can fix:
Definitions that are not formal. SEAB's glossary says "define" needs a formal statement or the defining equation with every symbol identified.
"Show that" with steps missing. "Show" means an algebraic deduction with the terms stated explicitly. Write every step, so the examiner can follow the deduction.
Units and significant figures. Answers carried to too many or too few figures, and missing units on final answers and table headings.
Signs. Negative potential and potential energy, work done on versus by a gas, and vector directions in collisions.
Field versus potential. Treating g = GM/r² and φ = -GM/r as interchangeable.
Sketch graphs without labels. The glossary says a sketch must show what is plotted on each axis, and may be expected to show an intercept or asymptote.
Degrees in the spreadsheet. Feeding degrees into a spreadsheet trigonometric function.
Vague evaluation. Naming "human error" instead of a specific source of uncertainty and a specific fix.
Wrong syllabus. Revising from 9749 material that does not match 9478 wording or content.
A revision plan for the last 12 weeks
Count back 12 weeks from the expected start of the written papers. For the 2027 exam, that puts week 1 around mid August 2027, with the practical expected around week 9 or 10. Fit your JC's prelims into weeks 2 to 6 as your school sets them.
1Weeks 1 and 2: auditSort all 20 topics into green, amber and red using your promo and recent test scripts. Rebuild your recall sheet and definitions list.
2Weeks 3 and 4: red topicsWork topical questions on the two or three weakest topics, usually from fields, induction, oscillations or quantum. Rewrite every wrong answer.
3Weeks 5 and 6: prelims and reviewSit your school prelims. Afterwards, list each lost mark by cause: concept, method, careless or time.
4Weeks 7 and 8: full papersOne timed Paper 3 and one timed Paper 2 each week, marked strictly. Practise the two-minute Section B choice.
5Weeks 9 and 10: practical focusTwo full Paper 4 runs with spreadsheet processing, plus planning questions. Drill tables, trendlines and uncertainties.
6Week 11: Paper 1 and gapsTimed Paper 1 sets at 2 minutes a question. Return to amber topics.
7Week 12: consolidateLight mixed practice, recall sheet and definitions daily, sleep and exam logistics. No new material.
If the 2027 timetable puts the practical earlier or later, swap weeks 9 and 10 to sit just before it.
Check where you stand
Once you have your prelim grades, use our rank points calculator to see how H2 Physics fits into your overall score out of 70.
A-Level UAS Calculator
Select the grade for your three H2 content subjects and H1 General Paper. The University Admission Score is calculated out of 70 under the revised system for admissions from 2026 onward. Add a 4th content subject or H1 Mother Tongue if you took one: it is counted only if it raises the score.
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Select the three H2 grades and General Paper to see the UAS (out of 70).
An A in an H2 subject is worth 20 rank points. Our rank points (UAS) guide explains the calculation.
Looking for 1-to-1 help with H2 Physics? See H2 Physics tuition for JC1 and JC2 tutor profiles, and our pricing page for hourly rates. If you are comparing group classes too, our list of the best physics tuition centres sets them side by side.
Common questions
What do I need to score an A in H2 Physics?
There is no fixed mark. SEAB grades A-Level against standards rather than fixed cut-off marks or a set percentage of candidates, so the safest aim is strong marks on all four papers, especially Paper 3 at 35%.
Which H2 Physics paper is the most important?
Paper 3 carries 35% of the grade, followed by Paper 2 at 30%, Paper 4 at 20% and Paper 1 at 15%. Paper 3's Section B lets you choose one of two 20-mark questions.
Is the formula list given in the H2 Physics exam?
Yes. The 9478 syllabus prints the data and formulae list as pages 2 and 3 of Papers 1, 2 and 3. Many core equations, including F = ma, E = hf and Coulomb's law, are not on it and must be memorised.
What does the H2 Physics practical involve?
In 9478, Paper 4 lasts 2 hours 30 minutes, is worth 50 marks and 20%, and requires candidates to process and analyse data in spreadsheet software, including trendlines, areas under curves and gradients.
How is the practical split between planning and lab skills?
Planning carries 4% of the overall grade. The other three skill areas, manipulation and measurement, presentation of data, and analysis and evaluation, carry 16% together.
Which topics are hardest in H2 Physics?
Electromagnetic induction, gravitational and electric fields, oscillations and superposition, and quantum physics ask for the most reasoning. Quantum physics in 9478 includes wavefunctions, normalisation and a particle in an infinite square well.
Can I use my older siblings' 9749 notes?
Use them with care. SEAB's 2026 list shows 9749 has its last exam in 2026, and 2027 school candidates sit 9478, so check each topic against the 9478 syllabus before relying on older notes or papers.
When are the 2027 H2 Physics exams?
SEAB has not published the 2027 timetable yet. The practical is expected in mid to late October 2027 and the written papers in November 2027. In 2026 the Physics practical was on 19 October.
Do I need H2 Physics for engineering at NUS?
NUS lists an H2 pass in Mathematics or Further Mathematics for Engineering. Its listing for Computer Engineering notes that students admitted without H2 Physics must take a Physics bridging course.
How much time should I spend on each mark?
About 2 minutes per question on Paper 1, and about 1.6 minutes per mark on Papers 2 and 3. A 20-mark Section B question in Paper 3 is worth roughly 32 minutes.
Written by Theon Teo, Founder and Mathematics Tutor, The Singapore Syllabus. DigiPen Institute of Technology Singapore, Game Development & Computer Science · 3 years' Mathematics teaching (Primary & Secondary). More about Theon
For 2027. Free to ask.
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