Physics at Cambridge — Admissions Guide 2026

For Physics and Astronomy, Cambridge is 5th in the world in QS 2025. In the UK, it is 1st for Physics and Astronomy in the Complete University Guide 2026. In Times Higher Education Physical Sciences 2026, Cambridge is =5th globally and the top UK university in that subject table.

Against Oxford, Cambridge offers Natural Sciences breadth and earlier optionality. Oxford is better for students who want a single-subject Physics degree from day one. Imperial is strongest for students who want a large London STEM environment, closer links to engineering, and a less collegiate experience.

Choose Cambridge if you want elite physics taught through a supervision-heavy course with early breadth. Choose Oxford for a purer single-subject route. Choose Imperial for London and a larger specialist STEM culture.

At the time of writing, Cambridge states that 2027-entry subject requirements for Natural Sciences were due to be published in April 2026. The currently published requirement is A*A*A at A level, or 41–42 points with 776 at Higher Level in the IB.

Applicants need Mathematics plus two other science or mathematics subjects. For Physical Natural Sciences, Cambridge’s published entrant profile says recent successful applicants were typically stronger than the minimum offer.

Applicants for Natural Sciences must sit the ESAT. For Cambridge, that means Mathematics 1 plus two further modules chosen from Biology, Chemistry, Physics, and Mathematics 2.

For 2027 entry, Oxford Physics also uses the ESAT, replacing the PAT. That matters for course comparison, although applicants still cannot apply to Oxford and Cambridge in the same UCAS cycle.

Cambridge interviews are academic conversations, not personality tests. Most applicants have one or two interviews, usually lasting 35 minutes to an hour in total. You can prepare with a mock interview built around the same style of questioning.

Interviewers are looking for subject understanding, readiness for advanced study, critical thinking, curiosity, and the ability to explain your reasoning clearly. For physics applicants, that often means school material used in unfamiliar ways: mechanics, graphs, approximations, modelling, and mathematical reasoning.

Cambridge does not make decisions on one metric alone. Colleges consider your academic profile, predicted grades, subject combination, ESAT performance, school context, written application, and interview.

For Physics through Natural Sciences, mathematical strength matters heavily. Strong applicants usually show both high attainment and the ability to adapt ideas under pressure.

A strong application should be academic, specific, and reflective. Your personal statement should focus mainly on your subject, show engagement beyond school, and explain what you actually learned from that work.

For physics, the best statements usually show mathematical curiosity, clear thinking, and real reflection. One well-explained example is stronger than a long list of undeveloped resources.

Physics at Cambridge sits inside the Natural Sciences Tripos. In Part IA, students take three science subjects and one mathematics option. In Part IB, future physicists usually take Physics A, Physics B, and Mathematics.

In Part II, students usually specialise in Physics or Astrophysics. There is then an optional fourth year, Part III, leading to the MSci for Cambridge undergraduates. The same programme is available to external postgraduate applicants as the MASt.

Teaching combines lectures, classes, labs, projects, and supervisions. Cambridge says first-year Natural Sciences students usually have around 12 lectures a week and one supervision a week for each of their four courses.

The best preparation is 6–12 months of steady immersion. Use Isaac Physics every week, follow Cavendish Laboratory news, and watch a small number of serious channels such as PBS Space Time, Veritasium, and Fermilab.

Add one or two podcasts, then read one short book you can actually finish. Depth matters more than volume. The goal is to understand ideas well enough to explain what interested you, what confused you, and what questions came next.

Your college choice matters less than many applicants think. Teaching for the degree is shared across the university, while supervisions are organised at college level.

If one college is oversubscribed, strong applicants may be considered by another through the winter pool. The right approach is to choose a college for fit, location, or atmosphere, not because you think it is an easier route in.

Cambridge presents Natural Sciences as strong preparation for both research and a wide range of quantitative careers. Around half of graduates continue with further study or research, while others move into programming, software development, finance, consultancy, and teaching.

For Physics students, the degree is valued for mathematical fluency, modelling, coding, and problem-solving. It opens many doors, but students still need to build technical depth and use the careers support available.

International applicants need the same academic standard as UK applicants and may also need to meet Cambridge’s English-language requirement. The current published minimums are IELTS Academic 7.5 overall with 7.0 in each element, or TOEFL iBT 110 overall with 25 in each element.

For IB applicants aiming at Physical Natural Sciences, Cambridge says that if you take Higher Level Mathematics, it expects Analysis and Approaches. Applicants should also check visa requirements and Cambridge’s international guidance before applying.

Cambridge considers school context as part of admissions. Strong applications are judged in light of the opportunities available to the student, not just raw attainment in isolation.

If your academic record has been affected by illness, disruption, or other serious circumstances, those should be declared properly through the application process so colleges can take them into account.