I just done the as physics prac. It was on resistance and resistrors. the planning exercise was on a rotating table with a slit through it, paint being sprayed through a slit etc. Can someone tell me what they put for the planning excersie, i.e what variable etc, and what they got for value of r1 on last question?
i did that too, i varyed the distance between the can and the loop/disk thing, so that the drops slow down, such a dodgy plannig question though, who cares about how fast spray paint goes, apart from chavs maybe! i completely cocked up reading the ammeter, but when i got home, i worked it out to be about 43ohms.
i swear i read it had a constant speed, but the speed of the loop is a more sensible idea since it limits the time that the slit is in line with the paint. i cant remember how i set up my graph. i dont think i scraped a c. oh well, il see what happens on the electricity written, since if i can get 100% in that, i may be able to pull off an a overall. What module did you do in january?