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

[email protected]
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#1361
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#1361
(Original post by jamesbird18)
I bet we get a ridiculous paper
Yeah I fear that as well!!!
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Malgorithm
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#1362
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#1362
(Original post by coder4)
Oh right thanks! Opposite directions you mean perpendicular?
Yep, sorry.
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WillGood
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#1363
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#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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Zenarthra
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#1364
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#1364
WHats likely to come up on the essay questions you think?
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MrChemKid
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#1365
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#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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pje1000
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#1366
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#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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Doctopus
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#1367
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#1367
(Original post by [email protected])
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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Louise6061
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#1368
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#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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FeelsToWaltz
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#1369
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#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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bmwdestroyer
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#1370
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#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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Malgorithm
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#1371
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#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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mamacita
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#1372
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#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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Tazmain
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#1373
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#1373
Do you have the markscheme as well?
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FeelsToWaltz
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#1374
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#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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jamesbird18
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#1375
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#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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Zenarthra
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#1376
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#1376
What hasnt been on the spec rcently
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mamacita
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#1377
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#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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[email protected]
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#1378
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#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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Tazmain
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#1379
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#1379
Thanks
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Zenarthra
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#1380
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#1380
Any others?
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