OCR Physics A G485 - Frontiers of Physics - 18th June 2015 Watch

ecsefem
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#1521
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#1521
Simply can't wait for this to be over
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chocolatemonkey7
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#1522
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#1522
Good luck everyone!!!!!
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ecsefem
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#1523
What's the equation E=BLv used for?
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randlemcmurphy
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#1524
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(Original post by ecsefem)
What's the equation E=BLv used for?
To calculate the induced e.m.f of a moving conductor (wire).
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Alex621
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#1525
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#1525
Thanks to everyone who has contributed to this thread, reading through it has helped my understanding of certain topics, along with answering a few of my own questions. All I can say now is good luck
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rachelc142
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(Original post by AlexParmenter)
Thanks to everyone who has contributed to this thread, reading through it has helped my understanding of certain topics, along with answering a few of my own questions. All I can say now is good luck
seconded :-D hope everybody gets what they need for uni/what they want and deserve

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FeelsToWaltz
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#1527
(Original post by AlexParmenter)
I just had a dream that it was a really easy paper and then I woke up to realise I hadn't even sat it yet
**** man, I had the exact same dream haha
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LilDurk
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#1528
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#1528
(Original post by lollipopsftw)
Lil Durk doing G485? :P how was Remember my Name?
it was a let down tbh
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Jigardubal
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#1529
(Original post by rachelc142)
I always feel ready then come on this thread like "lol nope"

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This is exactly how I feel dw!!
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Alex621
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#1530
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#1530
I need a mark scheme as soon as possible omg I felt like I guessed so many answers, I don't think the paper was too bad it just caught me out on things I didn't know well enough
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seizetoday
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#1531
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#1531
I think the paper was very good. Not sure how well I've done
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L'Evil Fish
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#1532
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#1532
Was sweet
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Genty Boy
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#1533
High grade boundaries for sure


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L'Evil Fish
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(Original post by Genty Boy)
High grade boundaries for sure


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Quite annoying but I feel there was quite a bit of maths for a non maths person

Think I got that average current one wrong though, probably way overcomplicated it
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Devran22
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#1535
I know I Deffo lost 11ish marks, but I don't think I'll go below 80.i think I'll be in the 80's. Hoping boundaries are like 76 for A

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seizetoday
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(Original post by L'Evil Fish)
Quite annoying but I feel there was quite a bit of maths for a non maths person

Think I got that average current one wrong though, probably way overcomplicated it
How did you work it out? I was so confused so I just did V=IR
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jcwh97
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#1537
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#1537
I think that was a good paper. Couple of hard maths questions and tricky 2 markers but feeling confident. I think A* will be 80ish and low 70's for an A.
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Devran22
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(Original post by seizetoday)
How did you work it out? I was so confused so I just did V=IR
That's what I did. But I realised after you use exponential formula. Should have realised it! How could I forget

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L'Evil Fish
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#1539
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#1539
(Original post by seizetoday)
How did you work it out? I was so confused so I just did V=IR
I thought that couldn't be it for 3 marks

And that would have meant 120Hz was completely irrelevant

So I did

V/R + (V/R)e^-(T/RC)

Where T was one oscillation

But then that would mean it's always increasing so the average would keep increasing so I was a bit confused

Got 5.9 x 10^-3
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jcwh97
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#1540
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#1540
The current question was the hardest. Ended up with 1.something x 10^-3
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