Grade A* · A-Level · A-Level Physics
How to get an A* in A-Level Physics
What does getting a A* in A-Level Physics take?
An A* in A-Level Physics needs equation fluency across mechanics, electricity, waves, fields and nuclear physics; precise use of significant figures; and structured 6-mark synoptic answers. Required-practical questions and the 'explain the physical mechanism' synoptic questions are where the A* gap sits.
What grade-A* students do differently
- 1
Memorise non-formula-booklet equations
AQA, Edexcel and OCR publish a formula sheet. The equations NOT on that sheet (definitions, derivations, special cases) must be memorised — a one-page summary card by topic is the gold standard.
- 2
Drill significant-figure precision
Final answers are typically expected to 2–3 sig figs and must match the data precision. Practise this; a 5-mark calculation can lose 1 mark on sig figs alone.
- 3
Practise the 6-mark explain-why synoptic answers
These reward a structured chain: physical principle → mathematical relationship → application to the scenario → consequence. Practise specifically — do not improvise.
- 4
Master the required practicals
12 required practicals per board. Each can appear with apparatus, method or analysis variations. Build flashcards covering: apparatus, variable control, sources of uncertainty, expected graph shape.
- 5
Run a personal Error Log
Physics errors cluster: unit confusion (kg·m·s vs N·s), forgotten 1/2 in the kinetic-energy equation, missing the negative sign in centripetal acceleration. Logging fixes patterns fast.
Where the marks are lost
Examiner reports highlight:
- Significant-figure precision — quoting 4 sig figs from 3 sig fig data loses marks.
- Vector questions — students often work in scalars where vectors are required (forces, velocities).
- Required practical questions — students recall the experiment generally but miss specific apparatus details.
- Synoptic questions linking fields and circular motion — these are predictable but commonly underprepared.
Board-specific considerations
AQA 7408, Edexcel 9PH0 and OCR A H556 (and OCR B H557 — Advancing Physics) have different paper structures. AQA Paper 3 has a written practical paper component; Edexcel includes a synoptic paper; OCR splits the synoptic content across Papers 1 and 2.
Frequently asked
- What percentage is an A* in A-Level Physics?
- Typically 80–85% across all three papers in recent years. Confirmed by the board each summer after marking.
- Should I memorise the formula booklet?
- Memorise the equations NOT on the booklet first (definitions, derivations, special cases). The booklet equations should be familiar enough that you don't waste exam time looking them up.
- How important is the maths in A-Level Physics?
- Around 40% of marks involve quantitative work. A-Level Maths concurrent study is strongly recommended; without it, the calculus-based topics (capacitor decay, simple harmonic motion) become much harder.
Go deeper on the topics that matter
Topic-by-topic guides aligned to the exam-board specifications.
A-Level Physics glossary terms
- Projectile motionProjectile motion describes the path of an object moving under gravity alone after being launched at an angle. Horizontal motion has constant velocity; vertical motion has constant acceleration g downwards. Resolve initial velocity into horizontal (v cosθ) and vertical (v sinθ) components, then apply suvat to each component independently. Range, maximum height and time of flight are the three exam-favourite calculations.
- Specific heat capacitySpecific heat capacity (c) is the energy required to raise the temperature of 1 kg of a substance by 1 °C (or 1 K). The defining equation is ΔE = mcΔθ where m is mass in kg, c is in J/(kg·°C) and Δθ is temperature change. Water has c = 4181 J/(kg·°C); aluminium is around 900; lead is around 130. The substance with the higher c needs more energy for the same temperature rise.
- Hooke's LawHooke's Law states that the force required to extend (or compress) a spring is proportional to the extension, provided the spring is within its elastic limit: F = kx, where k is the spring constant (N/m) and x is the extension from natural length. Past the elastic limit the relationship becomes non-linear and the spring may deform permanently. A force-extension graph rewards correct gradient calculation (gradient = k).
- Simple harmonic motionSimple harmonic motion describes oscillation where the restoring force is proportional to displacement and directed toward equilibrium: a = −ω²x. The system oscillates with constant period T = 2π/ω regardless of amplitude. SHM examples: mass on a spring (ω = √(k/m)), simple pendulum (ω = √(g/L) for small angles), molecular vibrations. A-Level Physics examines displacement, velocity and acceleration equations, energy in SHM and damping.
- RefractionRefraction is the change in direction of a wave (typically light or sound) when it crosses a boundary between two media of different propagation speeds. Snell's Law quantifies it: n₁ sin θ₁ = n₂ sin θ₂, where n is the refractive index. Total internal reflection happens when light moves from a denser to less-dense medium and hits the boundary at or above the critical angle. A-Level Physics extends to fibre optics and thin-film interference.
- Required practicalsRequired practicals are specified science experiments that students must carry out to pass the practical-skills component of GCSE and A-Level Sciences. Exam boards (AQA, Edexcel, OCR) publish a list of around 8 GCSE and 12 A-Level required practicals per science. They are not directly marked, but written exams ask questions about apparatus, technique, hazards and analysis using the required practicals as context.
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