physics prac

I belong to the lucky group of people who did expt 1 first. i made two mistakes initially. Firstly, i though the distance x/cm is the distance between the equilibrium position and the original position.... so half way though the expt (3 data sets) i realised i couldn't get the set up work anymore. once the magnet started oscillating it would flip over and be attracted to the othe magnet. by the time i spotted my mistake there were only 30 minutes left. so i decided to perform the rest timings once only. however i a hurry i forgot to log the period expression... ended up couldn't get a straight line graph. i tried to repeat expt, but obviously the points didn't fit.

time's up. the electrical one is always easy. half and hour later i'm back on expt 1. i decided to fake data, but one point is just too difficult to be fitted into the faked line... so treat it as anomalous lah... until when i have finished writing those rubbish for anomaly, some arrow of enlightenment struck me, and i realised the 'log' mistake... hehe, i still have 25 minutes... so i quickly hurried to finish the paper... though the scale of the graph was not that good. how to accommodate 1.5 in 12 grids? and the graph section was obviously much smaller than the graph paper we had used. nvm. i still had 10 minutes to waste so i quickly pressed my calculator to see whether the gradients and intercepts are accurate. not bad.... so there went the whole paper.