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A2 6PH04 Physics Unit 4 'Physics on the Move' - 11th June 2012

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sick

Original post by Yorrap

What happens then? (I am not asking the fusion process but the expirements at CERN)

What is the purpose of colliding them and overcoming strong nuclear force(s)?

If protons are collided together with not enough energy, the positively charged protons will repel each other and bounce back off keeping their internal secrets. Scientists collide protons with high energies so that when they collide the repulsive forces and then the forces holding the structure of the protons are overcome and they break off into their sub-particles. By determining the mass of these sub-particles, their nature is determined. This allows scientists to either discover new particles or confirm the existence of already discovered ones.

Reply 22

d_94

Ughhh!! I freaking hate this unit. But somehow I like Unit 5 better than this crap!!!

Reply 23

584385

http://www.thestudentroom.co.uk/showthread.php?t=1971547 this is a link to another thread contains all the jan 2012 papers for physics

Subscribing

Great thread!

I managed an A in the Jan paper, but I'm trying for an A*, so I'm retaking it. I find that sometimes the EM fields questions go right over my head, which is where I lose marks (and certainly where I lost marks in that god-awful Jan exam! :P)

Reply 26

Abrar_Higuain

Does any one have freaking predictions about this year's physics Unit 4 paper????? any ideas what type of question will come most and from what topic???......

Reply 27

TenaciousMonkey

Original post by Abrar_Higuain

Does any one have freaking predictions about this year's physics Unit 4 paper????? any ideas what type of question will come most and from what topic???......

If you try to work out what's going to come up, it'll probably take as much as effort as going over the material and preparing for any possibility.

But I'm really hoping we don't have another ridiculously fields-heavy paper like in Jan...

Reply 28

d_94

I hope a big question on further mechanics won't come. Its soo hard! Harder than Unit 1 Phys!!

Reply 29

ahmedm0209

I have a feeling the questions (and diagrams) from January will be re-used but the questions very slightly altered.

Reply 30

Josh.Holloway

why would you think that?

Reply 31

ahmedm0209

The other units consisted of essentially the same material as the January modules... Exam boards are lazy.

Reply 32

Josh.Holloway

I dont trust you ahmed. Its like you want to fool me into revising for the same stuff that came up in jan, only to be thrown into the deep end when i open up the paper to see otherwise. Sneaky, very sneaky.

Reply 33

M Kh

Original post by Josh.Holloway

Do you consider people's advices over the internet that seriously?
I wouldn't even take my teacher's word for gold, let alone someone else's. Anyways, we cannot predict anything really. Just learn what's on the spec., the important definitions and know your content inside out and then hopefully you will be fine. And yes, past papers are your best friends, so do not forget to solve any that you can get your hands on. Hope this helps. All the best for the exam.

Reply 34

Josh.Holloway

Original post by M Kh

Alright calm it man, was just joking around. Not taking your teachers word for gold is a bit of an over exaggeration though.

Reply 35

M Kh

Original post by Josh.Holloway

Alright calm it man, was just joking around. Not taking your teachers word for gold is a bit of an over exaggeration though.

I meant I wouldn't take my teachers' words about any exam predictions for gold. Actually, I don't really have a teacher. The ones I used to have were learning the new spec. at the same pace as us.

Reply 36

ahmedm0209

Original post by Josh.Holloway

Hahaha, I'm learning it all, just have a feeling it will be v similar

Reply 37

nevetstreblig

Ok kiddies, put the claws away :P

It would probably be a safe bet more run of the mill (as opposed to the chinese which was in our paper in jan) mechanics will turn up... my guy instinct says a 3/4/5 marker on conservation momentum in 2 dimensions. But with a bit of luck, a bit less qualifying of EM stuff and a bit more quantifying :P

Reply 38

d_94

Original post by nevetstreblig

Ughh! God. I freaking hate further mechanics. Yaa. I've been thinking they'd bring up those; also what else do you think would come? What else did your teacher say?

Reply 39

whooshpaddy

Original post by nevetstreblig

It would probably be a safe bet more run of the mill (as opposed to the chinese which was in our paper in jan) mechanics will turn up... my guy instinct says a 3/4/5 marker on conservation momentum in 2 dimensions. But with a bit of luck, a bit less qualifying of EM stuff and a bit more quantifying :P

I'm convinced that we're overdue a 2d momentum question.
This time around, I am going to write the equation in the answers for all the quantifying questions even if it is a long wordy question as looking at the Jan 12 markscheme I lost a lot of marks by not doing this.