The Physics PHYA2 thread! 5th June 2013

PHYA1 =
Question 6 – Don’t even know, seemed cool..

6) First phase difference was 90 degrees or pi/2. Second was 270 degrees or 3pi/2
b) Oscillation between maximum and minimum amplitude; i.e moves up and down
c) Polarisation only occurs in transverse waves; mention something about plane of polarisation
d) Define frequency
e) 750m
.

For part a) I did 1/4 lambda and 3/4 lambda, would that be considered correct?

Reply 1621

mikey2912

Original post by pearson1995

really hard :frown:

I needed a B in this.... dont think I got it.... how did everyone else find it?

i think it could have gone worse though! the 6 marker was pretty nice! i just need a B as well and think i should get it

Reply 1622

_JasmineMistry

2

doesn't intensity increase as it's deflected more?

Reply 1623

HeyThereEveryone

I may of lost 4 marks being harsh with myself hopefully that doesn't affect my chances of a 120ums

Reply 1624

Goods

16

Original post by _JasmineMistry

So people stressing over makes, what do you guys want to do at uni?

We want to study at cambridge so we need full(ish) marks :redface:

Posted from TSR Mobile

Reply 1625

Bookaky

Original post by _JasmineMistry

doesn't intensity increase as it's deflected more?

Not in the single slit no

Reply 1626

t-mister

what question did everyone think was the hardest in the paper?

Reply 1627

chatty95

in the 6 marker how many marks will it have been for stating newtons first law correctly, newtons second law correctly and state that the gradient of a velocity-time graph is acceleration?

also would i get the marks for saying 90 degrees 'out of phase', and 270 degrees 'out of phase'?

Reply 1628

FLLF

Original post by _JasmineMistry

So people stressing over makes, what do you guys want to do at uni?

Maths

Reply 1629

Bookaky

Original post by chatty95

in the 6 marker how many marks will it have been for stating newtons first law correctly, newtons second law correctly and state that the gradient of a velocity-time graph is acceleration?

also would i get the marks for saying 90 degrees 'out of phase', and 270 degrees 'out of phase'?

First one 3-4 marks depends what you said I'm sure you wrote about it in a lot more sophisticated and detailed manner. Second bit 2 marks fine

Reply 1630

_JasmineMistry

2

Anyone want to do engineering?

Reply 1631

IWantSomeMushu

17

What do you guys think the 120ums boundary will be?

Reply 1632

t-mister

Original post by chatty95

in the 6 marker how many marks will it have been for stating newtons first law correctly, newtons second law correctly and state that the gradient of a velocity-time graph is acceleration?

also would i get the marks for saying 90 degrees 'out of phase', and 270 degrees 'out of phase'?

You may get a couple marks for that but I think it was looking for how the laws have an effect and how the acceleration is changing i.e decreasing acceleration