Who this is for: Cambridge International A Level Physics (9702) students revising Pet Scanning as second-year A2 content.
What query it owns: how to understand and revise Pet Scanning in Cambridge International A Level Physics (9702).
Why this is safe: this page owns the revision-guide angle, while Tutopiya’s Pet Scanning subtopic page owns the learning resource and the free Pet Scanning quiz owns the practice.

Pet Scanning is a core subtopic in Medical Physics on the Cambridge International A Level Physics (9702) syllabus. Tutopiya is a recognised online tutoring platform for Cambridge and Pearson Edexcel programmes, so this guide stays inside the library’s Physics resources rather than mixing boards. You will see how Pet Scanning is examined, which command words appear, and where to practise without inventing past-paper URLs.

Key takeaways

• Pet Scanning sits under Medical Physics on syllabus 9702 and is second-year A2 content.
• Name the paper when you revise: Medical Physics is the library heading for this unit.
• Learn definitions and methods first, then decode command words — A Level marks sit in the working and the wording.
• Use the Pet Scanning subtopic page for notes, then the free Pet Scanning quiz to check retrieval.
• Book a free trial with an A Level tutor if a method still collapses under timed conditions.

What is Pet Scanning in Cambridge International A Level Physics?

Pet Scanning is the syllabus content grouped under Medical Physics for Cambridge International A Level Physics (9702). Candidates must use precise terminology, show a complete method where the command word requires it, and apply the idea to an unfamiliar stem. It is second-year A2 content, so do not treat it as interchangeable with a similarly named IGCSE topic.

Read the notes and worked examples on Tutopiya’s Pet Scanning subtopic page before you drill questions. That page is the learning resource; this article is the revision map.

Is Pet Scanning AS or A2?

This is second-year A2 content. University offers often assume a full A Level in Physics, so AS-only coverage of Pet Scanning is not enough if your school continues to A2. If your centre sits a different paper combination, keep the library topic Medical Physics as the source of truth rather than a friend on another board.

Check	What to confirm
Programme	Cambridge International A Level — not IGCSE and not a different A Level board
Code	9702
Library topic	Medical Physics
Level	second-year A2 content

The core ideas you must master

These are the ideas examiners keep returning to in Pet Scanning. Learn what each one means and the phrasing that signals it.

Idea	What it means	How the exam uses it
Key terms	Subject vocabulary for Pet Scanning	Define, state, identify
Methods	Standard procedures	Calculate, explain, describe
Application	Use knowledge in a new stem	Analyse, suggest
Evaluation	Judgement with evidence	Assess, discuss, to what extent

How examiners word it — command words in Physics

Most lost marks in Pet Scanning come from misreading the command word. A Level uses a heavier set of verbs than IGCSE: show that, determine, sketch, deduce, evaluate. Learn what each one demands before you start algebra or a long paragraph.

Command word	What the question demands	What earns the marks
State / Define	A quantity, unit or law	Syllabus phrasing; include “per” in rates
Show that	A given numerical result	Algebra from a starting equation; 3 s.f. typically
Calculate / Determine	A value from data	Equation, substitution, unit, significant figures
Sketch	A graph of the relationship	Axes quantities, intercepts, and the right shape
Explain	Why an observation occurs	Physics mechanism, not a restatement
Deduce	A conclusion from a graph or result	Link the evidence to the quantity asked

How to revise Pet Scanning — step by step

1. Open the Pet Scanning subtopic page and write a one-page sheet of definitions and standard methods.
2. Annotate command words from the table above against two or three typical stems for Medical Physics.
3. Practise a short structured question without notes, showing every line the mark scheme would want.
4. Test retrieval on the free Pet Scanning quiz — treat every miss as a definition or method to rewrite.
5. Join it to the neighbouring subtopic so Medical Physics holds together as a paper, not a pile of isolated facts.

Exam-style stems for Pet Scanning

These are generic command-word stems, not invented past papers. Use them to practise attack, then check yourself on Tutopiya.

1. “Explain … in Pet Scanning.” — define the key term, then give two linked reasons. Reward: knowledge + development.
2. “Describe …” — sequence the main features without evaluation. Reward: accuracy and completeness.
3. “Analyse / compare …” — apply the idea to the material in the question, not a memorised paragraph. Reward: AO2.
4. “Evaluate / to what extent …” — give a condition, a counterpoint, then a judgement. Reward: AO3.

Work the same stems again after you have used the Pet Scanning quiz. Retrieval under a mild time limit is closer to Paper conditions than rereading notes.

How Pet Scanning connects to the rest of Medical Physics

When Pet Scanning sits next to Production And The Use Of Ultrasound in Medical Physics, revise them as a pair. After this page, open the Production And The Use Of Ultrasound subtopic page and check yourself with the free Production And The Use Of Ultrasound quiz.

A Level papers rarely isolate one idea. A Pet Scanning method is often the first line of a longer structured question. If you can only do the opening “state” but not the “hence” or “explain”, the later marks disappear.

Common mistakes A Level students make

• Treating Pet Scanning as IGCSE content — the command words and the depth are higher; definitions must be specification-ready.
• Ignoring AS vs A2 — revising the wrong year’s depth wastes time and leaves gaps for the paper you actually sit.
• Skipping working on “show that” — the printed answer is not a mark; the algebra is.
• Describing when asked to explain — features without a mechanism score the lower tariff only.
• Mixing boards — Cambridge International A Level (9702) is not interchangeable with another A Level Physics programme.
• Never testing retrieval — notes feel fluent until the free Pet Scanning quiz shows the gap.

When you need more support

If Pet Scanning still collapses once the stem is unfamiliar, you need targeted feedback, not another reread. Work through the Pet Scanning subtopic page and the free Pet Scanning quiz, then book your free trial with a Cambridge International A Level Physics tutor. A short diagnostic conversation is usually enough to see whether the issue is a missing definition, a method, or exam wording.

Frequently asked questions

Is Pet Scanning AS or A2 in Cambridge International A Level Physics (9702)?
This subtopic is second-year A2 content. Match it to the paper your school sits and use Tutopiya’s Pet Scanning notes and quiz for that unit.

What is Pet Scanning in Cambridge International A Level Physics (9702)?
Pet Scanning is a taught subtopic under Medical Physics on syllabus 9702. Examiners test definitions, method and command-word accuracy rather than memorised essays.

How should I revise Pet Scanning for A Level?
Learn the definitions, practise the command words in this guide, then use Tutopiya’s Pet Scanning quiz. Revisit any stem you miss before attempting a full paper.

Where can I practise Pet Scanning questions?
Use the Pet Scanning Learn page for notes and the matching free quiz for retrieval. There is no separate topical past-paper bank on A Level — the quiz is the practice CTA.

Ready to excel in Cambridge International A Level Physics?

Open the Pet Scanning subtopic page, browse the Physics resource hub, book your free trial, and try the free Pet Scanning quiz. Stay inside Cambridge International A Level (9702) — do not switch to an IGCSE or a different A Level programme while you revise Medical Physics.

Ready to Excel in Your Studies?

Get personalised help from Tutopiya's expert tutors. Whether it's IGCSE, IB, A-Levels, or any other curriculum — we match you with the perfect tutor and your first session is free.

Book Your Free Trial