Hey, youre doing the same board as me:
1. Make sure your equations are in the right unit: I've been caught out many a time by not converting km into m or mins into secs
2. Learn the electricity equations: they're the only ones you cant really figure out in the exam
3. Take some time to learn longer answers for things like the electric motor, air resistance, measuring the speed of sound etc- they always come up.
4. Flashcards are great to look at last minute before the exam
5. Go in there confident, youll be fine!