Physics questions - AQA paper 1 2020

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RVal-
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#1
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#1
Hi all,
So I’ve been going through paper 1 I did and I think some questions were marked wrong, could anyone answer one or more of the following questions? Thanks

1. Determine whether the following reaction is possible for the neutral pion π^0
π^0->e^- + u^+ + (electron anti neutrino)

2. A student suggests that the kaon K^0 and the anti-Kaon K^0(bar on top) are the same particle, discuss whether this suggestion is correct
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hedgefund45356
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#2
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#2
do you still have the paper
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tomp03_
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#3
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#3
For question 1:
Yes the reaction can take place. All properties are conserved

Question 2:
No they are not the same particle. They might have the same charge, but the K^0 has a strangeness of -1, whereas the antikaon has a strangeness of +1
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Eldw
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#4
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#4
Did u get it
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omarsharif8
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#5
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#5
(Original post by tomp03_)
For question 1:
Yes the reaction can take place. All properties are conserved

Question 2:
No they are not the same particle. They might have the same charge, but the K^0 has a strangeness of -1, whereas the antikaon has a strangeness of +1
I can confirm, this is correct
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Adam_Azmy
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#6
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#6
Hello guys i have mocks tomz, anyone know what questions are coming up on the 2020 AQA AS physics Paper 1???

Its urgent help a bredrin out

thanks, AdGOAT
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Eldw
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#7
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#7
no idea sorry this is A2 good luck tho
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Penny456
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#8
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#8
(Original post by Adam_Azmy)
Hello guys i have mocks tomz, anyone know what questions are coming up on the 2020 AQA AS physics Paper 1???

Its urgent help a bredrin out

thanks, AdGOAT
I have mine tomorrow! What came up?? hope it went well for you
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LordofMoria
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#9
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(Original post by omarsharif8)
I can confirm, this is correct
Correct me if I'm wrong but lepton number is not conserved so the reaction cannot happen?
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Eldw
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#10
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(Original post by LordofMoria)
Correct me if I'm wrong but lepton number is not conserved so the reaction cannot happen?
nevermind I was talking bout the kaon stuff
Last edited by Eldw; 1 year ago
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the_icy_goldfish
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#11
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#11
Does anyone have any links to any threads or anything do to with the second paper?
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Milad.2003
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#12
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#12
(Original post by Penny456)
I have mine tomorrow! What came up?? hope it went well for you
hey have you done it? do have the paper? and can you upload pics or at least tell me what comes up?
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LordofMoria
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#13
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(Original post by Milad.2003)
hey have you done it? do have the paper? and can you upload pics or at least tell me what comes up?
hey, I have done it and have a copy however it has my answers scribbled over it (not entirely correct lol) lmk if you still want it
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Sinnoh
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#14
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#14
2020 papers haven't been made publicly available by the exam boards yet, so sharing them on here isn't allowed
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