AQA Physics PHYA5 - 28th June 2016 [Exam Discussion Thread]

Oh dear.... Good luck.... I'd definitely speak to the exam officer at your centre though...

Panic over, PHYA5 doesn't define Astro, PHYA5/A does. I am on PHYA5/C which is Applied Physics which is what I've actually studied for... phew!

Jesus, do not need that sort of stress just before an exam!

Reply 641

Mango Milkshake

2

Good luck, stressed for this

Reply 642

philo-jitsu

2

For turning points

Have we ever had a 6 marker about finding h?

By using photocell and photoeldctric effect?

Reply 643

Whizbox

7

Original post by Questioner1234

If we're given masses of atoms in a nuclear decay equation for mass defect do we need to subtract the electrons or will they just cancel out?

Posted from TSR Mobile

I'd say it's worth subrtracting them out, just for peace of mind. Then if you have time try it the other way

Reply 644

C0balt

16

Original post by Stormin'

Panic over, PHYA5 doesn't define Astro, PHYA5/A does. I am on PHYA5/C which is Applied Physics which is what I've actually studied for... phew!

Jesus, do not need that sort of stress just before an exam!

Good to hear! Good luck nevertheless

Original post by Questioner1234

If we're given masses of atoms in a nuclear decay equation for mass defect do we need to subtract the electrons or will they just cancel out?

Posted from TSR Mobile

For mass defect no you need not to

Reply 645

jamiemok

Original post by Exams987

does anyone know potential 6 markers for both unit 5 and astro

Reckon something on brownian motion and for astro how stars are formed possibly

Reply 646

crashMATHS

16

That was beautiful

Posted from TSR Mobile

Reply 647

C0balt

16

I AM FREEEE

Applied was quite good

Reply 648

marioman

8

Both papers (Nuclear/Thermal and Astrophysics) went pretty well for me. Hopefully A* in the bag unless I bombed the EMPA.

Reply 649

Ac19951

1.22x10^8 AU for the last question in Astrophysics anyone? I think i forgot to square root my answer.

Also what did you guys write for the first part of the CCD question? Regarding structure.

(edited 7 years ago)

Reply 650

aelahi23

2

Found the exam to easy quite. I did turning points for optional module

although one question threw me off, the 4 mark question in turning points that asked to find specific charge I got 2.1 * 10^8 what did other people get?

since F=Bev and F= Mv^2/r
I did equated them to each other then rearranged to get
e/m = v/Br

"v" mean velocity
"V" means PD

To find v (velocity) I did v=V/Br

so subbed in the v=V/Br into e/m = v/Br to get rid of velocity from the equation to get e/m= V/Br/Br
which simplified to e/m= V/ B^2 * r^2
Is that correct?

Section A was very easy so I don't have any queries about that

Reply 651

Examguy123

2

What did everyone write for the 6 marker on the neucleur section

Reply 652

Mattematics

5

Was it just me or was Section A really long?

Reply 653

crashMATHS

16

Original post by aelahi23

Found the exam to easy quite. I did turning points for optional module

although one question threw me off, the 4 mark question in turning points that asked to find specific charge I got 2.1 * 10^8 what did other people get?

since F=Bev and F= Mv^2/r
I did equated them to each other then rearranged to get
e/m = v/Br

"v" mean velocity
"V" means PD

To find v (velocity) I did v=V/Br

so subbed in the v=V/Br into e/m = v/Br to get rid of velocity from the equation to get e/m= V/Br/Br
which simplified to e/m= V/ B^2 * r^2
Is that correct?

Section A was very easy so I don't have any queries about that