OCR runs two GCSE science suites. Gateway Science is Physics A, J249, which is this guide. Twenty First Century Science is Physics B, J259 and is organised completely differently.

The code is on your exam timetable. Gateway physics topics are numbered P1 to P6.

This is the Foundation tier guide, offering grades 5 to 1.

At OCR the tier also changes the paper number. Foundation sits Papers 1 and 2 and Higher sits Papers 3 and 4. You are sitting Paper 1 and Paper 2.

Your teacher decides the entry, usually during Year 11. If you are moved up to Higher you will need the Higher guide, which adds the higher-tier content.

Then you need a different guide. Combined Science A is J250, a double award worth two GCSEs, and it examines less physics than the separate Physics A. Working from this guide would mean learning content your papers will not ask for.

The one you want is OCR GCSE Combined Science Physics, Foundation.

Paper 1 covers Electricity, Forces, Magnetism and Magnetic Fields, Matter. Paper 2 covers Energy, Global Challenges, Radioactivity, Waves in Matter.

The second paper assumes the content of the first, so nothing from the first half is ever safely dropped. The full breakdown is here.

Yes, and they sit in the topics they belong to rather than being folded into theory: every equation on the specification with its units and rearrangements, plus gradients and areas from graphs, significant figures, standard form and prefixes.

OCR examines practical work on the written papers rather than in a separate component, so the techniques sit inside the topics they belong to: measuring density, specific heat capacity, resistance and I to V characteristics, waves in a ripple tank and on a string, light and refraction, forces and extension, and acceleration.

By subtopic, never by topic. The largest topic here is 309 questions, which is not a session. It divides into subtopics of 8 to 25 questions, and one of those is twenty minutes.

Any point in Year 10 or Year 11. Both papers are sat at the end of Year 11 and cover the full two years, so no part of the guide is too early.

The usual pattern is a subtopic in the week it is taught, then returns on days 1, 3, 7, 14 and 30.

Yes. This guide handles recall. Past papers handle the six-mark answers, the unfamiliar contexts and finishing the paper in the time. OCR publishes them free.

A PDF of 1,303 exam-style questions covering the whole of OCR GCSE Physics A, Foundation tier, with the answers printed after each topic.

It is not a textbook. It is the tool for getting taught content into memory and for showing whether it went in.

Three things decide it, and all three are on the exam timetable.

The suite. OCR Gateway is Physics A, J249. Twenty First Century is Physics B, J259.
The route. Separate sciences, sat as three GCSEs, are not the same as Combined Science, a double award covering all three.
The tier. Foundation offers grades 5 to 1, and at OCR the tier changes the paper numbers.

This is the separate science GCSE, Physics A (J249), one of three sat alongside the other two sciences. This guide is the Foundation tier, sitting Paper 1 and Paper 2.

There should be handwritten answers on paper and three passes over the same questions. The method produces two numbers each session, the score on the first closed-book pass and the score on the third. Those two numbers are a better thing to ask for than the number of hours spent.

Rereading and highlighting are the two most common revision activities and Dunlosky and colleagues rated both low utility in their 2013 review of ten techniques. They raise how familiar the material feels without raising the ability to produce it with the book shut.

The method page sets out what to do instead.

£7.00 for the whole specification at that tier. A GCSE physics revision guide is usually £6 to £10 and a full textbook £20 to £30. The three separate sciences are sold as three guides because they are three qualifications with three sets of papers.

79 subtopics at roughly twenty minutes each is about 26 hours for a full first pass of the course. Returns afterwards are three to five minutes each.

Partly. Foundation carries the content common to both tiers, so everything in this guide stays relevant. A student moved to Higher would need the Higher guide as well, because Higher adds content that the Foundation papers do not examine.

Past papers, free from OCR, a calculator, and their own notes for anything not yet taught.