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# OCR Gateway Physics P4P5P6 - 18/06/13 Watch

1. (Original post by BrokenS0ulz)
Pretty much

Yay lol, someone in the same boat as me!

I got a B last year.... Hoping for an overall tbh but not sure whether ill get it...

just hope motors, diodes and generators don't turn up lol, which they probably will :'(
2. (Original post by Knowing)
I think this is because:

To find the relative speed, you take the first velocity and minus the second velocity. To find the vector sum, you get the first force and add the second force.

i.e.

Velocity of car 1 = 10m/s
Velocity of car 2 = -10m/s
Relative velocity = 10m/s - -10m/s = 20m/s

Force 1= 200N
Force 2 = -200N (other direction)
Resultant force = 200N + - 200N = 0N

EDIT: If the door doesn't move, it means all the forces acting upon it are balanced, so it couldn't be 400N.

Something like that, if I've explained it ok
Ah, that makes sense, thanks

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3. I'm acc gonna do **** in this test :/

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4. I'm too burnt out from other exams to revise much for this. I think I'm good for an A, but not too sure about an A*. I really want one A* in a science though...
5. (Original post by dazzer19)
Yay lol, someone in the same boat as me!

I got a B last year.... Hoping for an overall tbh but not sure whether ill get it...

just hope motors, diodes and generators don't turn up lol, which they probably will :'(
I really don't like the motors or generators or diodes, or any of P6. But I am sure there is going to be a question about motors ):
6. (Original post by jay_em)
I'm too burnt out from other exams to revise much for this. I think I'm good for an A, but not too sure about an A*. I really want one A* in a science though...
I feel the same as you.. my head does not have the capacity for anymore revision
7. How many raw marks for an b?

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8. I think this year a B will have raw marks of 50/85
9. Are you Sure? Everyone was saying on the bio paper you needed like 60-65% Raw marks for an a*

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10. (Original post by Ani97)
I think this year a B will have raw marks of 50/85
50/85 is a bit high for a B? I mean A* will probably be around 50-55?
11. (Original post by Knowing)
50/85 is a bit high for a B? I mean A* will probably be around 50-55?
My thoughts exactly, I think an a will be like 40-45 and a b would be 34-39

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12. (Original post by dazzer19)
Yay lol, someone in the same boat as me!

I got a B last year.... Hoping for an overall tbh but not sure whether ill get it...

just hope motors, diodes and generators don't turn up lol, which they probably will :'(
Okay, what the hell is your avatar? Every time I see it I'm just like "wut"
13. what do people think the 6markers are likely to be? Physics is my worst subject eurgh I hate it! and I need as much help as I can get! also I really don't understand the whole polarising light..? if anybody could explain that it would be great! and if there's time how a motor or generator actually works? (I think I know the basics, but that's not enough if it's a six marker!!)
14. Please can someone explain to me rectifier circuits and also nuclear fission and fusion please? In including the part about how the nuclear reactor works. Thankyou!
15. Can anyone explain to me Q 12 b on the spec paper :

http://www.ocr.org.uk/Images/80674-u...accredited.pdf
Okay, what the hell is your avatar? Every time I see it I'm just like "wut"
Hahahahahaha, lololololol (but at the same time) :O :O

how could you not know who Dara O'Briain is!!??
17. (Original post by ryanb97)
Can anyone explain to me Q 12 b on the spec paper :

http://www.ocr.org.uk/Images/80674-u...accredited.pdf
1/3 + 1/4 + 1/5 = 1/Rt

47/60 = 1/Rt

Rt = 60/47 = ???
18. (Original post by dazzer19)
Hahahahahaha, lololololol (but at the same time) :O :O

how could you not know who Dara O'Briain is!!??
How is that a picture of Dara O'Brian?!
19. (Original post by ryanb97)
Can anyone explain to me Q 12 b on the spec paper :

http://www.ocr.org.uk/Images/80674-u...accredited.pdf
Does this help (attached)?

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How is that a picture of Dara O'Brian?!

Ahhhhhhh yeeeaaaahhhhhhhh

with a police helmet on....

and looking pretty weird......

but it is still the D meister...

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