Hi, ive just taken higher physics at my local college, its been a few years since i left school and need to do some revision. They expect me to be able to do some formula manipulation, i have no idea how to do this.. i need a beginners tutorial or if someone really nice person can explain the basics, because i am totally stuck, im not even sure what i should be looking for on the net. it's only my first lesson, my second on friday and i feel like im falling behind already. also if if anyone could advise on what kind of skills i should need at higher level i would be greatful. Cheers.