I stayed overnight beforehand and got a free breakfast in the college. I had 3 interviews and 2 tests. My first 2 interviews were mathematical, with the second one based around the test; the last was for physics and based on the test. There were 2 interviewers in each, I think. They were all technical interviews, with some discussion of my EPQ in the physics interview.

Between interviews I sat in the JCR chatting with the other interviewees. The maths test had a lot of questions, I remember one was a probability question about a tennis match that I couldn't answer because I didn't know about tennis much to the interviewer's surprise. In the corresponding interview we discussed the question's I'd tried (they hadn't been checked in advance I don't think) and we looked at some of the other questions. I felt really comfortable in the interviews. I think they were probably all around 30-40 mins, and the maths test was probably 45-60 mins, the physics test 30 mins.

Maths Interview 1: We discussed a mechanics question that was quite complicated but based on A level content, and a graph plotting question with the modulus function. I made a sign error but the lead interviewer was nice and asked about it but said it was ok.

Maths Test: I don't remember much, think I answered 2 or 3 questions and tried 1. There was a range of topics.

Maths Interview 2: We went over the test and the interviewer went through some of the other questions with me. There was some question about mechanics needing integration which I hadn't yet studied but the interviewer helped me through it.

Physics Test: It was a question about a pulley with friction in lots of parts. I can't remember if there was just 1 question or we only had to answer 1.

Physics Interview: We talked a bit about my EPQ, then spoke about the test question and expanded on it a bit, then did a question about the geometry of footballs. When expanding on the first question we used differential equations, which I hadn't studied yet so I pointed this out but we pressed on anyway.

It was important to be up to scratch with all the A level content we'd done so far. The most useful thing was definitely doing mock interviews with my teachers. Practicing STEP questions is good for the maths interview (and the mechanics questions would also be good for a physics interview) - they're probably harder than the interview questions but that makes them even better practice! Also just Googling past questions.

It's obviously not this easy but try and relax in the interview - you probably actually quite like maths/physics and the questions you're being asked should be interesting, so try and enjoy it and make it clear you're interested in what you're doing.