National 5 Physics: The Paper, the Assignment, and Whether It Is Hard

National 5 Physics has a reputation for being one of the harder sciences at this level. The 2025 figures do not really support it: 13,678 candidates sat it, and 87.9% got a grade. The no-award rate of 12.1% is lower than National 5 Maths, National 5 Chemistry and National 5 Biology.

What is true is that it is unforgiving in one particular way, and that way is arithmetic rather than physics.

The two components

This is the course as it stands for pupils sitting the exam from 2027 — course specification version 5.0, valid from session 2026–27:

The 2025 and 2026 diets ran on the previous version: a 135-mark question paper over 2 hours 30 minutes, scaled to 100, plus the same 20-mark assignment scaled to 25, giving a 125-mark total. The 2025 boundaries below are marks out of 125, which matters when you turn them into percentages.

The course is 24 SCQF credit points at SCQF level 5. The assignment is done in class, under supervision for the report stage, and marked externally by SQA.

Note the scaling. The assignment is worth 20 raw marks but counts as 28 (25 until 2026), which makes it about a fifth of the final total. That is a large, controllable block of marks available before the exam diet even starts — and in practice it is where the gap between an A and a B is most often decided, because it is the one part of the course where a pupil can take time, ask questions and revise a draft.

The 2025 grade boundaries

Cumulatively, 72.6% achieved a C or better. Entries were slightly up on 2024 (13,353).

Read those boundaries against the maths ones and the difference in character is obvious: a C in National 5 Physics needs around 45% of the marks (56 out of 125), where a C in National 5 Maths needs just over half. Physics papers are set to be discriminating at the top rather than forgiving at the bottom.

The thing that actually catches people out

The specification lists the skills the course develops, and the ones that lose marks are not the physics knowledge. They are: processing information using calculations and units, presenting information appropriately, and applying knowledge to new situations.

In an exam that means three recurring failure modes, none of which is about understanding physics:

• Units. A correct number in the wrong unit is a wrong answer. Physics at this level is relentless about it, and it is the cheapest mark to lose and the cheapest to fix.
• Rearranging before substituting. Pupils who substitute first and rearrange afterwards make more errors and take longer. It is a habit, and habits are trainable.
• Reading data from a graph or table. A large share of the paper hands you information and asks you to select from it. Practising with real past papers, rather than topic sheets, is what builds that.

None of this needs Higher-level maths — the algebra in National 5 Physics is National 5 algebra. But it needs that algebra to be automatic, which is why pupils who are struggling with National 5 Maths very often present as struggling with physics too.

The assignment is the marks to protect

Twenty raw marks, scaled to 28 from 2027, marked by SQA. It rewards process rather than results: a clear aim, data you actually collected, sensible processing, appropriate presentation, an honest evaluation of what went wrong.

The single most common way to lose marks is treating it as a lab write-up rather than a report — no stated aim, no evaluation, results presented without units or uncertainty. It is also the one piece of the course where a pupil can ask their teacher what a good one looks like, which is worth doing in September rather than in February.

Where it leads

National 5 Physics is the entry point to Higher Physics, which in turn is expected by essentially every Scottish engineering degree and most physics and astrophysics routes — see subject choices for engineering. Schools rarely start a pupil on Higher Physics without the National 5, so the decision that matters is made at option-choice time in S3 or S4, not in S5.

For revision, this is a past-paper subject more than most: the question styles repeat, the data-handling questions repeat, and SQA past papers are free and official.