OCR B (Advancing Physics) G492, 25th May 2012 Afternoon
Physics exam discussion - share revision tips in preparation for GCSE, A Level and other physics exams and discuss how they went afterwards.
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Re: OCR B (Advancing Physics) G492, 25th May 2012 AfternoonSo far, I've found the actual exam questions for quantum quite easy, although I agree that the concepts are quite confusing.(Original post by Wulf chan)
I have a booklet full of past papers which I should start. I feel guilty for start starting revision yet but I have a week plus I had other exams before, heh.
I find all the quantum stuff really confusing tbh. -
Re: OCR B (Advancing Physics) G492, 25th May 2012 Afternoon
i'm thinking there will be questions on:
sensitivity (as it talks about response time)
we might get a graph and we might need to work some values out.
circuits (possibly, it mentions currents and voltages. it might even have some potential dividers in it, who knows)
wave theory (definitely. i'd be surprised if they didn't ask you to calculate anything after they gave you all those values and janx.)
photon energy
i want to say gravity stuff, bit that's G494...maybe just simple algebra manipulation and re arrangements.
it would be healthy to expect stuff from the actual text too, they do like to make you analyse stuff once in a while
also, if you are given crap text books like my school, try this, VERY VERY useful:
http://www.scribd.com/doc/91553024/A...Revision-Guide -
Re: OCR B (Advancing Physics) G492, 25th May 2012 Afternoonnot partying... revising hard and trying not to be distracted by the computer(Original post by When you see it...)
I quoted 26 people (although I may have quoted some twice...) and only one has responded (and that response came before I even put the quotes in!). I know it's friday night and everything, but are you all really out partying in exam season? -
Re: OCR B (Advancing Physics) G492, 25th May 2012 Afternoon(Original post by When you see it...)
x.
(Original post by Wulf chan)
x
Can anyone help me on question 10cii on this paper?? Thanks
Please help question 10.pdf
(Original post by Dhanu123)
x[/url]Last edited by master y; 20-05-2012 at 08:39. -
Re: OCR B (Advancing Physics) G492, 25th May 2012 AfternoonHiya, please could you post your link? Thank you(Original post by Andy16)
Count me in, to get things going I shall finish off my pre release article analysis by 9:30. I will post a link to the thread when its done.
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Re: OCR B (Advancing Physics) G492, 25th May 2012 Afternoon(Original post by master y)
Can anyone help me on question 10cii on this paper?? Thanks
Please help question 10.pdf

Where did you get that paper from? I thought that the earliest unit 2 exam was June 09.
Could you post the mark scheme please? Also the grade boundaries?
BTW for that question you know that:
P is proportional to v^(3)
So if v doubled the RHS would turn into:
(2v)^(3)
Which expands to give:
8v^3
Therefore in order to make the above proportionality equation still true (with the same constant I mean - it would still be true if you changed the constant, but you can't because the density, shape and area are all... well, constant!) you need to multiply the RHS by a factor of... 8! So the answer is 8. -
Re: OCR B (Advancing Physics) G492, 25th May 2012 AfternoonThanks a lot!!(Original post by When you see it...)

Where did you get that paper from? I thought that the earliest unit 2 exam was June 09.
Could you post the mark scheme please? Also the grade boundaries?
BTW for that question you know that:
P is proportional to v^(3)
So if v doubled the RHS would turn into:
(2v)^(3)
Which expands to give:
8v^3
Therefore in order to make the above proportionality equation still true (with the same constant I mean - it would still be true if you changed the constant, but you can't because the density, shape and area are all... well, constant!) you need to multiply the RHS by a factor of... 8! So the answer is 8.
I got it off my school portal.... i think the school has access to it, ask your teacher!! There are no mark schemes on there though... i send it to my teachers to mark. Sorry! -
Re: OCR B (Advancing Physics) G492, 25th May 2012 AfternoonIs it actually a past paper or is it just something you teachers compiled?(Original post by master y)
Thanks a lot!!
I got it off my school portal.... i think the school has access to it, ask your teacher!! There are no mark schemes on there though... i send it to my teachers to mark. Sorry! -
How do you turn it off?!(Original post by ElleRose)
Oh gosh, I didn't realise it was going to put that at the end of my post! It was the first time I've used the app. But, no, I don't have a fancy phone. I was using my outdated iPod touch, so not quite as fancy!
I think I've managed to turn it off now, haha.
This was posted from The Student Room's iPhone/iPad App

