Physics Revision Guide: Flashcards & Spaced Repetition Plan
How to do physics revision: the ten equations every deck needs, four flashcard types and a six-week spaced repetition plan for GCSE, A-level, IB and AP.
What Is the Best Way to Do Physics Revision?
The best way to do physics revision is to combine retrieval practice on flashcards (equations, definitions, units and diagrams) with timed past-paper questions, and to space both across several weeks instead of cramming. Flashcards secure the facts you must recall; past papers train you to apply them to unfamiliar problems.
Retrieval practice is the habit of pulling an answer out of memory instead of re-reading it. Spaced repetition is reviewing each item at growing intervals, just before you would forget it. Together they are the core of this physics revision plan, and they work for GCSE, A-level, IB and AP Physics alike.
This guide covers what to put on your physics flashcards, the ten equations almost every revision deck needs, a six-week timetable built on spaced repetition, and the mistakes that waste revision time.
Why Does Re-Reading Fail for Physics Revision?
Re-reading fails for physics revision because it feels like learning while testing none of the skills an exam asks for. You recognise an equation on the page, but in the exam you must recall it, choose it, and rearrange it for the unknown.
Two well-documented findings explain the gap:
- The forgetting curve: the German psychologist Hermann Ebbinghaus showed in 1885 that memory for new material falls quickly unless it is reviewed. Our science of spaced repetition guide explains the curve in detail.
- The testing effect: in a 2008 study published in the journal Science, Jeffrey Karpicke and Henry Roediger found that students who kept testing themselves remembered far more a week later than students who kept re-reading the same material.
Physics adds a third problem. A topic such as electricity can feel clear on Monday and unfamiliar on Friday because the equations and units are easy to confuse. Frequent, short recall sessions fix that.
Physics Revision Flashcards: What Should Go on Each Card?
Physics revision flashcards should hold one fact per card, written as a question on the front and a short answer on the back. Our guide to effective flashcards covers the general rules; for physics, four card types cover almost everything.
Equation Cards
Put the quantity on the front and the equation on the back: "Equation for kinetic energy?" answers "Ek = ½ × m × v²". Add a second card for the units ("Unit of kinetic energy?" answers "joule, J") so that the equation and its units are recalled separately.
Definition and Law Cards
A definition card asks for a term in the words your exam board expects. Examples: "Define the principle of conservation of energy" or "State Newton's third law". Keep the answer to one or two sentences so you can tell at once whether you recalled it correctly.
Quantity and Unit Cards
Physics marks are lost on units. Make cards that pair each quantity with its symbol, unit and whether it is a scalar or a vector, for example "Is velocity a scalar or a vector?" answers "vector: it has magnitude and direction".
Diagram Cards
Sketch or paste a circuit symbol, a ray diagram, a free-body diagram or a wave diagram on the front and ask what it shows or what is missing. Diagram cards train the visual recall that exam questions on circuits, forces and optics depend on.
Which Physics Equations Belong in Every Revision Deck?
Ten physics equations appear in almost every school-level physics course and belong in every revision deck. Check your exam board's specification to see which equations you must recall and which are given on the exam's equation sheet, then add any missing ones.
| Quantity | Equation | Unit of the answer |
|---|---|---|
| Speed | speed = distance ÷ time | metres per second, m/s |
| Force | F = m × a | newton, N |
| Weight | W = m × g (g is about 9.8 N/kg at Earth's surface) | newton, N |
| Kinetic energy | Ek = ½ × m × v² | joule, J |
| Gravitational potential energy | Ep = m × g × h | joule, J |
| Density | ρ = m ÷ V | kilograms per cubic metre, kg/m³ |
| Pressure | p = F ÷ A | pascal, Pa |
| Potential difference | V = I × R | volt, V |
| Electrical power | P = I × V | watt, W |
| Wave speed | v = f × λ | metres per second, m/s |
For each row, make three cards: the equation, the unit, and one worked example with numbers. The worked-example card is the one that turns recall into exam marks.
How to Build a Physics Revision Timetable With Spaced Repetition
A physics revision timetable built on spaced repetition schedules every new card for review at growing gaps. A common schedule reviews a card one day, three days, one week, two weeks and one month after you first learn it.
| Review | Gap after first learning |
|---|---|
| First review | 1 day |
| Second review | 3 days |
| Third review | 7 days |
| Fourth review | 14 days |
| Fifth review | 30 days |
A card that you miss goes back to the start of the schedule. Because the last review falls about a month after the first, begin at least six weeks before your exam. Our study planning and scheduling guide shows how to fit these reviews around lessons and homework.
A Six-Week Physics Revision Plan
- Weeks 1 and 2: build cards for forces, energy and electricity, and review them daily for 10 to 15 minutes. Do one timed set of past-paper questions per topic.
- Weeks 3 and 4: add waves, particles and matter, and magnetism. Keep reviewing older cards on their schedule while new cards enter.
- Week 5: take full past papers under exam timing and add a card for every mark you lose.
- Week 6: review the cards you miss most, redo the questions you got wrong, and stop adding new material three days before the exam.
Which Active Recall Methods Work Best for Physics Revision?
Active recall methods for physics revision force you to produce an answer before you check it. Beyond flashcards, four methods work well, and our active recall study technique guide covers the general method.
- Blank-page recall: close your notes, write everything you know about one topic, then compare against the specification and fill gaps.
- Timed past-paper questions: answer without notes, then mark against the official mark scheme and note exactly which marks you missed.
- Explaining aloud: explain a concept such as why a heavier and a lighter object fall together in a vacuum, as if teaching a friend. Where you stall is what to revise.
- An error log: write each mistake as a flashcard the same day, so wrong answers become the highest-value cards in your deck.
What Are the Most Common Physics Revision Mistakes?
The most common physics revision mistakes are all forms of passive study or poor card design:
- Copying equations without units. An answer without its unit usually loses a mark, so every equation card needs a unit card.
- Making cards too long. A card holding a whole paragraph cannot be scored as right or wrong; split it into several cards.
- Skipping the maths. Recalling "F = ma" is not the same as rearranging it for a, so practise rearranging on cards and in past papers.
- Revising only favourite topics. Spaced repetition only helps with the cards that exist, so write cards for the topics you avoid first.
- Leaving past papers to the last week. Start timed questions in week one, because applying equations is the skill the exam rewards.
How Can Study Genius AI Speed Up Physics Revision?
Study Genius AI can speed up physics revision by turning your own notes into flashcards and scheduling their reviews automatically. Upload a PDF of your revision guide or lecture notes, as described in our PDF to flashcards guide, and the app generates cards you can edit before you start. It then applies spaced repetition so that each card returns at the right time. You still need to check every generated card against your exam board's specification, because the specification, not the app, decides what is examined.
Key Takeaways: Physics Revision
- Physics revision works best when flashcard recall is paired with timed past-paper questions.
- Every equation needs three cards: the equation, its unit and a worked example.
- Review new cards after 1, 3, 7, 14 and 30 days, and start at least six weeks before the exam.
- Turn every mistake into a card the same day, so your weakest facts return most often.
- Check your exam board's specification to know which equations to memorize and which are provided.
Frequently Asked Questions
How many flashcards do I need for physics revision?
A reasonable target for physics revision is 80 to 150 cards for one exam course: about 30 to 50 equation and unit cards, 30 to 50 definition and law cards, and 20 to 40 diagram cards. Build the deck from your exam board's specification so that every card maps to something you can be examined on.
When should I start physics revision?
Start physics revision at least six weeks before the exam. A card reviewed after 1, 3, 7, 14 and 30 days needs about a month to complete its schedule, and the remaining two weeks leave room for full past papers and for the topics you keep getting wrong.
Are flashcards enough for physics revision?
No, flashcards alone are not enough for physics revision. They secure recall of equations, definitions and units, but exams reward applying equations to new situations. Pair flashcard review with timed past-paper questions and mark them against the official mark scheme to practise using what you have memorized.
Should I memorize physics equations or use the formula sheet?
Check your exam board's specification to see which equations you must recall and which appear on the exam's equation sheet. Memorize every equation you must recall, and still practise the ones on the sheet, because knowing when to use an equation and how to rearrange it matters as much as having it in front of you.
Ready to build your physics deck? Download Study Genius AI and turn your revision notes into flashcards with built-in spaced repetition.
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