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AQA Physics PHYA5 - Thursday 18th June 2015 [Exam Discussion Thread] Watch

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    (Original post by CD223)
    I did. I was just asking as my friends said I was wrong to use their data.


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    oh ok.... how did you find nuclear paper overall? What did you put for 6 marker?
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    (Original post by sykik)
    oh ok.... how did you find nuclear paper overall? What did you put for 6 marker?
    Didn't like the paper as a whole tbh. PHYA4 went better personally. Made too many mistakes for an A*. You?


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    (Original post by aprocrastinator)
    awesome! I think the other two people at my school doing medical physics (out of 40 people. lol) got the same so probs right! Me too, it took me forever to get my head around it, i have no idea why omg.
    There's only three of you? Whoa! Our school made everyone do medical physics - we didn't even get a choice

    But wow, great! Me too - I can never get my head around whether or not I need to use a negative sign!!!
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    (Original post by sykik)
    Get in!!... How did you find the paper overall? Can you recall what the values for specific heat capacity question were?
    I think it was generally alright, some parts were surprising, but on the whole a good paper. Definitely better than unit 4, i could have died after that paper :P.

    as for thermal i got (from memory)
    47000j for one of them
    320K for another
    2.4x10^17 for number of atoms/nuclei
    I wrote about Brownian motion and elastic collisions for the movement.
    1.6x10^17 kg/m^-3 for a density question

    Ermmm i have bad memory sorry for the lack of question numbers!

    That's all i can remember.
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    (Original post by CD223)
    For the SHC definition did you have to use the data given? 130Jkg^-1K^-1?


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    Yeah you had too
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    (Original post by gtkonline)
    1.73x10^11
    No...I'm looking for the follow up question with angle subtended
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    (Original post by CD223)
    Didn't like the paper as a whole tbh. PHYA4 went better personally. Made too many mistakes for an A*. You?


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    Lol seriously?? Unit 4 was way harder for me... for me Unit 5 was reasonably ok compared to unit 4 but then again you had a different option which might have been more difficult compared my option
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    (Original post by CD223)
    For the SHC definition did you have to use the data given? 130Jkg^-1K^-1?


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    yes
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    (Original post by sophiebeth100)
    There's only three of you? Whoa! Our school made everyone do medical physics - we didn't even get a choice

    But wow, great! Me too - I can never get my head around whether or not I need to use a negative sign!!!
    I got 0.19m too! That paper was amazing, the x-ray and the 6-markers were directly copied from past papers! And I'm the only one in my school out of about 100 doing Medical
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    (Original post by sykik)
    Lol seriously?? Unit 4 was way harder for me... for me Unit 5 was reasonably ok compared to unit 4 but then again you had a different option which might have been more difficult compared my option
    Astro was odd compared to previous years. I didn't really like it


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    For those who did Turning Points did anyone find this exam easier than June '11? Because that had the lowest cap of 67/75. I want to try and make an assumption as to what the cap on this exam would be?
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    (Original post by TheGreyPhysicist)
    awesome :P
    thanks!
    it's calm my g
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    (Original post by Disney0702)
    For those who did Turning Points did anyone find this exam easier than June '11? Because that had the lowest cap of 67/75. I want to try and make an assumption as to what the cap on this exam would be?
    Yh i found it really easy
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    (Original post by k9000)
    it's calm my g
    :cool: Hell yeahhh
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    (Original post by sykik)
    Lol seriously?? Unit 4 was way harder for me... for me Unit 5 was reasonably ok compared to unit 4 but then again you had a different option which might have been more difficult compared my option
    I agree! I found the Unit 4 exam more difficult than this exam. But I still want the grade boundaries to be as low as possible.

    What optional unit did you do? I did Turning Points
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    (Original post by Disney0702)
    For those who did Turning Points did anyone find this exam easier than June '11? Because that had the lowest cap of 67/75. I want to try and make an assumption as to what the cap on this exam would be?
    this was easier, personally I feel they will be this year will have 67 as the cap but my friends are going for 63. If you have done the legacy papers then this paper was a joke.
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    what did people say about alpha radiation in room and hazards?

    I think i said it could collide and ionise human DNA which could then turn cancerous
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    (Original post by Bealzibub)
    what did people say about alpha radiation in room and hazards?

    I think i said it could collide and ionise human DNA which could then turn cancerous
    -outside it is relatively harmless as it can't penetrate skin
    - inside it produces most ion pairs (compared to alpha and gamma)
    - ionise cells which can have somatic/genetic effects.
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    (Original post by Bealzibub)
    what did people say about alpha radiation in room and hazards?

    I think i said it could collide and ionise human DNA which could then turn cancerous
    I said that and that breathing it in was more hazardous than contact outside the body.


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    (Original post by aprocrastinator)
    a nice paper, mostly because the 6 marker was the exact repeat of the 6 marker in recent papers (don't remember which one though)

    did you get 0.19m for the corrected near point though? i always mess those calculations up lol
    I'm paranoid I missed a question in Medical - is this all there was on it? Myopia question, db/dba question, ECG 6-marker and image intensifier?
 
 
 
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