Year 10 to year 11 advice?Watch
For science I'd say the most important thing is remembering and understanding the content, you can do that by using flashcards, a method that helped me a lot, or mind maps. My school paid for a site called my-gcse-science which was really helpful for me, so it might be worth emailing your school if they could do the same.
More specifically physics, I'd say a major thing that will be useful is being able to memorise equations and also link them together, you may some some high marking questions that will require you to remember 2 different equations and use the answer from 1 in the other. There's an app called 23 equations which is quite popular for learning equations, but I personally think it's easier to just understand why the equation is how it is.
It's great that you're already getting ready for year 11, that'll put you ahead of most already, so good luck and try not to stress out too much 😉.
It's already a great thing that you're asking on here- you're gonna smash year 11, all the best!