OCR runs two GCSE science suites. Gateway Science is Combined Science A, J250, which is this guide. Twenty First Century Science is Combined Science B, J260 and is organised completely differently.

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

This is the Higher tier guide, offering grades 9-9 to 4-4 of the double award, with an allowed 4-3.

At OCR the tier also changes the paper number. Foundation sits Papers 1 to 6 and Higher sits Papers 7 to 12. You are sitting Paper 11 (Physics) and Paper 12 (Physics).

Higher carries everything on the Foundation papers plus the higher-tier content, so a student later moved to Foundation has lost nothing.

Then you need a different guide. The separate sciences are Physics A (J249) and they examine more physics than Combined Science does.

The one you want is OCR GCSE Physics A, Higher.

Paper 11 (Physics) covers Electricity, Forces, Magnetism and Magnetic Fields, Matter. Paper 12 (Physics) 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 320 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 1,222 exam-style questions covering the whole of OCR GCSE Combined Science Physics, Higher 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 Combined Science A, J250. Twenty First Century is Combined Science B, J260.
The route. Separate sciences, sat as three GCSEs, are not the same as Combined Science, a double award covering all three.
The tier. Higher offers grades 9-9 to 4-4 of the double award, with an allowed 4-3, and at OCR the tier changes the paper numbers.

This is Combined Science A (J250), the double award worth two GCSEs, of which this is the physics third. This guide is the Higher tier, sitting Paper 11 (Physics) and Paper 12 (Physics).

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 sciences within Combined Science are sold as three guides because biology and chemistry are examined on their own papers.

74 subtopics at roughly twenty minutes each is about 25 hours for a full first pass of the course. Returns afterwards are three to five minutes each.

That is your school’s decision and they will make it on mock performance. What is worth knowing is that Higher offers grades 9-9 to 4-4 of the double award, with an allowed 4-3 and Foundation caps at grade 5-5.

Higher content is a superset of Foundation content, so a student preparing on this guide who is later moved to Foundation has lost nothing.

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