Not bad at all. Particle physics was easier (and less random) than the past papers thankfully. I only did units 2 and 3 though (Im in the LVIth).
I found both ffe and unifying concepts bareable, i was expecting them to be much harder, and i'm not bothered what they ask, its always related to whats on the sylabus and i'm usually quite good at applying it to other things, often better than just doin it in its normal form
What did everyone put for the bit where they asked you to describe 2 experiments to show that there are 3 types of radiation (i think)?
I put one where you have a source aimed at a magnetic field, and the second one was totally random and irrelevant...holding an alpha source above a wire held at a potential and watching the sparks lol.
I'm curious to find out if anyone answered the question about testing for helium gas with 'swallow it and see if your voice goes squeaky'. Of the thousands that took the paper, surely there must be at least one!
(Apologies for the double post)
I did the magnetic field one, and placing a source which emits all 3 kinds of radiation next to a Geiger counter and putting paper, aluminium and lead in between the two.
I managed to muster the words 'spectrometer' and 'absorption spectrum' from the Cosmology module so I think I got away with that one.
i thought it was hydrogen that made squeeky pops!!!
and atomic emission is a form of spectroscopy (thats what the answer to that question was - analyse line spectra and compare the energy differences of electron states in helium - should match up)
i asked before but noone answered, 30/60 for an A?
i did OCR syllabus B(advancing physics) this morning. has anyone here sat that, or is there another thread.
that was a pretty dull paper. The very last question of paper 5 (Field+particle physics) was really tough if you didn't know anything about Hall Voltages. I just looked in the text book OCR/the Institute of Physics set, and there is about 4 lines about it in the whole book... and yet they dedicate a 10-marker to it. humph. don't like OCR syllabus B!
i got 54/60 on my coursework
and probably 20/60 on this
what grade will i have