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

Original post by nothepreacher

I don't remember wave diffraction and all that. Or circuits! Just a bit of mechanics, even that I have lost touch with. I just hope they don't decide to be too synoptic.

If any wave diffraction stuff comes up I will have no idea what to do lol

They might ask us to use a bit of g484 like last year in one part of a question

Reply 1264

ecsefem

Dont suppose someone has a convenient document with all the graphs we need to know for this?

Reply 1265

Original post by SkilledNChilled

Can anyone explain the reasoning to this question? It has me stumped. Thank you.

can't read the question but you have the same curtains as my room lmao
all i could notice was that we have the same curtains

Reply 1266

Original post by SkilledNChilled

Can anyone explain the reasoning to this question? It has me stumped. Thank you.

What year and paper Question is it

Reply 1267

Original post by ETRC

If any wave diffraction stuff comes up I will have no idea what to do lol

They might ask us to use a bit of g484 like last year in one part of a question

G482 is quite common in this exam

Reply 1268

Original post by chem@uni

G482 is quite common in this exam

hoping none of it comes up
its too late to revise g482 now anyways

Reply 1269

actanide

Original post by SkilledNChilled

Can anyone explain the reasoning to this question? It has me stumped. Thank you.

year and question?

Reply 1270

jcwh97

I doubt there will be any wave diffraction. How is that even relevant for g485

Reply 1271

actanide

Original post by jcwh97

I doubt there will be any wave diffraction. How is that even relevant for g485

came up in some past paper, you also had to describe what the absorption spectrum is

Reply 1272

Jim997

MASS SPECTROMETERS GUY!

How do the work?

Reply 1273

jcwh97

Original post by actanide

came up in some past paper, you also had to describe what the absorption spectrum is

I wouldnt classify that as wave diffraction although it wont get any more intensive then that.

Reply 1274

Oraeng

In one of the mark schemes for the strong nuclear force it says it is attractive at 'larger' distances and repulsive at 'short' distances and is short ranged.

Since when is the strong nuclear force repulsive? I thought it is just short ranged and attractive???

Reply 1275

Malgorithm

6

Original post by Oraeng

In one of the mark schemes for the strong nuclear force it says it is attractive at 'larger' distances and repulsive at 'short' distances and is short ranged.

Since when is the strong nuclear force repulsive? I thought it is just short ranged and attractive???

As far as I know, the strong nuclear force becomes repulsive at shorter distances in order to stop nuclei from occupying the same space. I'm sure someone else has a better explanation though.

Reply 1276

Original post by ETRC

hoping none of it comes up
its too late to revise g482 now anyways

Usually it is just using equations from G482 topic more than anything

Reply 1277

Original post by Oraeng

In one of the mark schemes for the strong nuclear force it says it is attractive at 'larger' distances and repulsive at 'short' distances and is short ranged.

Since when is the strong nuclear force repulsive? I thought it is just short ranged and attractive???

What paper?

Reply 1278