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

3 years ago
#1361
(Original post by jamesbird18)
I bet we get a ridiculous paper
Yeah I fear that as well!!!
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3 years ago
#1362
(Original post by coder4)
Oh right thanks! Opposite directions you mean perpendicular?
Yep, sorry.
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3 years ago
#1363
Does anyobe have the 2014 paper? Only one i havent done and forgot to ask teach. Just realized that now.
Pleaseeeeeeee
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3 years ago
#1364
WHats likely to come up on the essay questions you think?
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3 years ago
#1365
in the equation I=Ie^mu X ( for x rays)

does the mu and x have to be in cm or m?
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3 years ago
#1366
i dont understand magnetix flux/magnetic flux density/magnetic flux linkage, could somebody explain like...all of it please. And the common exam questions that come up on it as i think its my only weak area, thanks!
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3 years ago
#1367

The ones in the spec
Thanks.

If there are certain parts of the spec that have been asked recently, in a lot of detail, then they are unlikely to be tested again. I.e - which parts of the spec haven't been asked recently in great detail.
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3 years ago
#1368
(Original post by MrChemKid)
in the equation I=Ie^mu X ( for x rays)

does the mu and x have to be in cm or m?
If both mu & x are given in cm keep them in cm
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3 years ago
#1369
(Original post by MrChemKid)
in the equation I=Ie^mu X ( for x rays)

does the mu and x have to be in cm or m?
It doesn't matter as long as they're the same unit, as the units cancel out in the calculation. So m and cm wouldn't work but cm and cm, or m and m would work!
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3 years ago
#1370
Any advice on cramming for this exam this evening, barely done any revision at all so far, only been over some universe stuff and capacitors
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3 years ago
#1371
(Original post by MrChemKid)
in the equation I=Ie^mu X ( for x rays)

does the mu and x have to be in cm or m?
If they have different units, which is unlikely, then it's easiest to convert them both into metres.
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3 years ago
#1372
(Original post by WillGood)
Does anyobe have the 2014 paper? Only one i havent done and forgot to ask teach. Just realized that now.
Pleaseeeeeeee
https://www.dropbox.com/sh/6hx59wmym...20Physics?dl=0
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3 years ago
#1373
Do you have the markscheme as well?
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3 years ago
#1374
(Original post by bmwdestroyer)
Any advice on cramming for this exam this evening, barely done any revision at all so far, only been over some universe stuff and capacitors
Don't do any so we get lower grade boundaries!

No but seriously, I suggest making sure you're completely familiar with everything in the formula booklet, and making some notes on the big topics that could come up i.e gamma cameras, MRI, CAT scans, evolution of the universe etc..
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3 years ago
#1375
My predictions
- Some **** question on the structure of the atom or universe
- Evolution of the universe
- gamma camera
- a difficult graph
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3 years ago
#1376
What hasnt been on the spec rcently
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3 years ago
#1377
(Original post by Tazmain)
Do you have the markscheme as well?
https://www.dropbox.com/sh/6hx59wmym...20Physics?dl=0

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3 years ago
#1378
(Original post by Doctopus)
Thanks.

If there are certain parts of the spec that have been asked recently, in a lot of detail, then they are unlikely to be tested again. I.e - which parts of the spec haven't been asked recently in great detail.
(Original post by Zenarthra)
What hasnt been on the spec rcently
Ultrasound
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3 years ago
#1379
Thanks
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3 years ago
#1380

Ultrasound
Any others?
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