Our Physics

I'm in the 6th class in my school. Our results are terrible imagine a science-stream student that don't ever try to listen what the maths teacher is talking about. This Exam's killer-Physics often made jokes between us students all kinds of jokes are made out of it. Our teacher's advice was to memorise the formulae and we are gurranted to pass in our exam. Eventually our class top score was 44( in our school the passing mark is 60). This came out in the formula d=2g (Optical Geometry) and the formula of gravational g=9.8ms-2. Someone in our class made this, the angle of deviation d=2(9.8ms-s) so d=19.6ms-2