AQA Physics: PHYA1 Tuesday 19th May 2015 (AM) and PHYA2 Thursday 04th June 2015 (PM)x

Reply 1780

bboys

Cap is likely 65 and A 52-55. They won't change that much from last year even tho it was a hard paper.

Reply 1781

jadys10

14

Original post by particlestudent

ekmax=hf-work function

You calculated the photons frequency in the previous question and it gave you the work function. That's how i done it

Ok, how did you calculate the frequency, they said show but we only had h, how did you work out a value for E to calculate f?

Reply 1782

DominoMatrix227

2

Now recruiting for people to form an army and storm the AQA headquarters or wherever they create those blasted papers, armed with catapults/potato guns, anything that can fire potatoes.

Anyone want to sign up? Bring lots of potatoes...

Reply 1783

username1214456

10

Who's joining me for a resit next year?! :smile:

*happy not happy* *dies* *resurrected* *dies again*

Reply 1784

jadys10

14

Original post by Piddles

Use the formula of potato radius=emf x electron mass

Not the potato question, the earlier question about the sodium atom

Reply 1785

MLGPhoenixx

Original post by Krollo

I'm doing these exams for my sins - my mocks went a lot better than I'd expected, but then last year's papers were quite nice. I wonder what AQA have in store for us...

Posted from TSR Mobile

This year's papers have been found pretty difficult, the Chemistry was VERY weird.

Reply 1786

particlestudent

13

Original post by jadys10

Ok, how did you calculate the frequency, they said show but we only had h, how did you work out a value for E to calculate f?

F= to the ionisation energy/h and it gave me the thing we had to show.

Reply 1787

jadys10

14

Original post by DominoMatrix227

Now recruiting for people to form an army and storm the AQA headquarters or wherever they create those blasted papers, armed with catapults/potato guns, anything that can fire potatoes.

Anyone want to sign up? Bring lots of potatoes...

As well as particle accelerators to give them cancer :colone:

Reply 1788

ALEVELMASTER110

Original post by Parallex

How did you actually know the wires on the last question were in parallel? :s-smilie:

If you did past papers there was a similar question about filament in a copper cable in addition to that you were provided with a cross-section of the whole cable (i.e the 7 wires)

Reply 1789

NonsoMakwe

Original post by DominoMatrix227

Did anyone else get around 2000-3000 ohms for the internal resistance question?

Yessss, I thought it was unusually high though

Reply 1790

DominoMatrix227

2

Unnofficial Mark scheme anyone?

Reply 1791

blueberry389

8

nothing on line spectra and photoelectricity long questions came up...

Reply 1792

Salsa123

10

Original post by Sharaf371

Who's joining me for a resit next year?! :smile:

*happy not happy* *dies* *resurrected* *dies again*

We can only hope for slightly lower grade boundaries than usual and salvage an A grade with a good unit 2 mark. The general consensus in my school was that the paper was more difficult than expected so I would be happy with a B

Reply 1793

patrickggg

Original post by benwood

omg can't believe it was the same as the leaked paper I found, can't wait for unit 2 now :u:

Omg you are so chatting!

Reply 1794

NonsoMakwe

Original post by Piddles

Use the formula of potato radius=emf x electron mass

..... ...

Reply 1795

jadys10

14

Original post by particlestudent

F= to the ionisation energy/h and it gave me the thing we had to show.

So you just put h and f into the equation, and worked out E?

Reply 1796

SirRaza97

7

Original post by NonsoMakwe

Yessss, I thought it was unusually high though

It's a potato it would have high resistance since it's not usually used to cunduct electricity. I got 2.7 because I forgot it was in mA...

No A for me....

Reply 1797

benwood

1

Original post by patrickggg

Omg you are so chatting!

what does that mean?

Reply 1798

leicsharvey

3

Original post by particlestudent

And what did you get with that formula? It mentioned them having the same frequency as the photons in 2b, so I am sure that formula was not needed. Did you get 2911 something ms-1?

Isnt it the wavelengh = h/mv ?

Reply 1799

jadys10

14

Original post by Salsa123

We can only hope for slightly lower grade boundaries than usual and salvage an A grade with a good unit 2 mark. The general consensus in my school was that the paper was more difficult than expected so I would be happy with a B

So do you think with a high A in unit 2 and 3, but a B/C in unit 1, is it possible to get an overall A?

AQA Physics: PHYA1 Tuesday 19th May 2015 (AM) and PHYA2 Thursday 04th June 2015 (PM)x

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