AQA Physics Unit 1 PHYA1 20th May 2014 OFFICIAL Watch

Randomer96
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#461
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#461
(Original post by Dasin)
I dont remember the equation, what was it?
I think it was a K+ --> pion+ and X
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_Caz_
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#462
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#462
(Original post by Dasin)
should be fine, depends on what you said about it though
Thanks
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zed963
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#463
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#463
For question 5, I used P=IV instead of P=I^2R. How many would this cost?
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Jamesgault
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#464
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(Original post by Avor)
For the question where you had to calculate the energy in eV, does anyone remember the wavelength that they gave us? It was in nanometers.
245??
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mattallica
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#465
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(Original post by AreiMo1997)
had 10 mins to do whole of electricity , ****ed it up , results day >parents get mad > cry > suicide> retake year
GGG **** YOU ELECTRICITY YOU WAAAAAANKER
Particle was ok , QUatumn was ok ( no photoelectic lololol *****) and electicity was stupid as ****

You'll have a job retaking the year if you commit suicide mate
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GrammarSkoolBoi
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#466
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to put it bluntly, no, because neutron is wrong as baryon number would not be conserved, unfortunately i doubt you will receive credit.
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Salt and Peppa
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#467
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#467
(Original post by Potatosandwich98)
On one part i swear it said what is conserved and what is not conserved? I put baryon number and strangeness
Yes. And that is correct aswell.
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LxH
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#468
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(Original post by Potatosandwich98)
On one part i swear it said what is conserved and what is not conserved? I put baryon number and strangeness
Baryon number and strangeness is correct. I'm 100% sure. However my electricity teacher was a complete gimp so that second section ****ed me up
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mattallica
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#469
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(Original post by zed963)
For question 5, I used P=IV instead of P=I^2R. How many would this cost?
That first part was 3 marks, I imagine 1 mark was for obtaining the correct value of power from the graph, and the other 2 would be the correct calculation. You'd lose those 2 marks, and then get follow-through for the rest of the question if the values were correct for your value of current.
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Potatosandwich98
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#470
Didnt a question ask
what is conserved?
what is not conserved?
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deadmau_5
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(Original post by GrammarSkoolBoi)
im not 100% but it hink the internal resistance was exactly 3 with no rounding error, however the markscheme will no doubt allow for rounding error however i cant say how large the range of accepted values will be. possibly 2.8 to 3.2
No but what if i used a different value in the first part of the question and then while doing the rest of the questions, would i still get a ecf mark because although i initially messed up, but i continued on correctly?
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_Caz_
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#472
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#472
Can we take a moment to appreciate all the fluorescent tube marks available? That was a beautiful question.
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Avor
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#473
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#473
What did everyone get as their value of the eV?
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Dasin
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#474
hmmm I must not be neutrino then, however I don't remember what I ticked, I remember crossing something out, what were the choices ?
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psncscyne
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#475
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#475
(Original post by Jamesgault)
245??


254...
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deadmau_5
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#476
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(Original post by Avor)
What did everyone get as their value of the eV?

Something like 4.89 ev or 4.9, roundabouts that much, you?
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fruity97
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#477
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#477
The beta decay one was definitely an (electron) anti neutrino as lepton number had to equal zero & it was electromagnetic interaction with virtual photon not weak interaction?
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Dasin
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#478
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#478
Can't wait for Unit two, Mechanical physics will easily redeem whatever I lost in this paper. Peace.
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Kieranw5
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#479
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#479
(Original post by deadmau_5)
Something like 4.89 ev or 4.9, roundabouts that much, you?
I got 5
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GrammarSkoolBoi
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#480
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(Original post by deadmau_5)
No but what if i used a different value in the first part of the question and then while doing the rest of the questions, would i still get a ecf mark because although i initially messed up, but i continued on correctly?
yeah i knew what you meant i was just making a general point. But it really depends on AQA for some questions they do give ecf marks, but in some they dont, you'll just have to wait and see
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