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# P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME Tweet

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1. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
for the true or false question it was definately: false for the second, true for the third and fourth. not sure about the first
2. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by JLR96)
for the true or false question it was definately: false for the second, true for the third and fourth. not sure about the first
think it was true false true true? any other?
3. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by Smko)
think it was true false true true? any other?
thats what i put
4. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by JLR96)
thats what i put
any others you remember ? seem to have wrote about most Q's
5. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
for the one with average speed and instantaneous speed, the other was for velocity
6. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
Yes that it! thanks!
7. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
the circuit table:
i think the answers were: decrease, the same, the same, increase
8. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
hi everyone- is this thread for ocr a or ocr b?! i did this (a) one today and i dont recognise the questions but i think it went okay

max:P
9. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by JLR96)
for the one with average speed and instantaneous speed, the other was for velocity
did we have to link all 3 of the left hand boxes with the right hand boxes? I have a feeling i only linked the 'average' one for some reason?
10. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by melv97)
hi everyone- is this thread for ocr a or ocr b?! i did this (a) one today and i dont recognise the questions but i think it went okay

max:P
hi its for the old spec p4 p5 p6 not sure if its A or b think A..
11. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by physicshelpme)
did we have to link all 3 of the left hand boxes with the right hand boxes? I have a feeling i only linked the 'average' one for some reason?
12. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by physicshelpme)
did we have to link all 3 of the left hand boxes with the right hand boxes? I have a feeling i only linked the 'average' one for some reason?
one of my friends said that it said to only do one, but i didnt realise and did all 3?
13. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by Smko)
hi its for the old spec p4 p5 p6 not sure if its A or b think A..
its A
14. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
for the interaction pairs, it was:
the weight of the gymnast and the pull of the gymnast on the earth
& something else

I THINK
15. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by JLR96)
for the interaction pairs, it was:
the weight of the gymnast and the pull of the gymnast on the earth
& something else

I THINK
it was somthing to do with the hoops the other one
16. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
what about the question with the rods?
17. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by JLR96)
one of my friends said that it said to only do one, but i didnt realise and did all 3?
Yeah, I'm that friend.

It did say draw one line, from the correct reason to the correct explanation.

What did you lot put down for the question to do with KwH and an hour costing 20p???
18. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by ollielawn)
what about the question with the rods?
They repel each other because same charges repel each other, so as both are identical they get the same charge, and so they repel each other.

Right, or am I missing something?
19. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
yeh that's right,:confused but I mean did they gain a negative charge or positive, because I thought that the cloth 'brushed' the electrons of the rod giving the rod a positive charge and because they both have the same charge they repel. Did I get that wrong?
20. Re: P4 P5 P6 JUNE 2012 OCR 21c PHYSICS UNOFFICAL MARKSCHEME
(Original post by ollielawn)
yeh that's right,:confused but I mean did they gain a negative charge or positive, because I thought that the cloth 'brushed' the electrons of the rod giving the rod a positive charge and because they both have the same charge they repel. Did I get that wrong?
Im not sure, didn't think about that i just wrote negative straight away for a reason I can't remember. You will get a chunk of the marks for saying that they repel each other due to them having the same charge though.
Last edited by vxrz; 21-05-2012 at 16:44.