I do AQA physics a level, I’m currently in year 13, and maths is a HUGE part of the a level! There still is theory, but there’s far more marks for maths than any of the other sciences. I don’t do a level maths but most of my physics class do and they don’t stop going on about how much it helps them. As much as I’d love to say ‘oh no you’ll be fine just do physics’, there is a great deal of maths involved so you’ll need to think carefully about whether it’s a good idea to do. However, if you’re achieving 8s and 9s in gcse physics, year 12 AS physics is genuinely just gcse equations with extra bits thrown in so you should be fine with that, but year 13 A2 content gets SO SO much more difficult. Hopefully by then you’ll be used to the slightly greater level of difficulty and the maths aspect won’t be a problem.