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    (Original post by physicsmaths)
    It is wrong I think.


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    I think its wrong because i didnt substract my answer from initial temperature , othewrise the answer would be 11.6 oh well just 1 mark lost
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    (Original post by blahblah21)
    anyone get around 41.something for the new activity?
    Me and all my friends got around 42, I think it depends on the rounding you used
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    If I used 75 as t for the activity question (2015 - 1950 = 75 derp) - but did the decay constant and A = A0 e^-kt correctly, how many marks lost?
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    Crap crap crap crappy crap crap anyone find that paper hard???
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    (Original post by josephinemar25)
    Crap crap crap crappy crap crap anyone find that paper hard???
    GCE or IAL? I found the gce paper tough indeed
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    (Original post by Pudge666)
    For the trignometry parallex question can you explain it by drawing the diagram
    Yeepp!
    I copied the one from mark schemes and added some explanation.


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    (Original post by callum9977)
    If I used 75 as t for the activity question (2015 - 1950 = 75 derp) - but did the decay constant and A = A0 e^-kt correctly, how many marks lost?
    2 probably.


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    (Original post by Pudge666)
    I think its wrong because i didnt substract my answer from initial temperature , othewrise the answer would be 11.6 oh well just 1 mark lost
    Did you add the mc respectively for each object?


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    (Original post by physicsmaths)
    Did you add the mc respectively for each object?


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    Yes
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    (Original post by physicsmaths)
    Did you add the mc respectively for each object?


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    I got 11.6 for the temp, I added the m and c respectively. Would I lose 1?




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    5 minutes
    Power 650 Watts
    E = Pt = 5 x 650 x 60 = 195000J

    Then there were two mcθ you had to equate to?
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    To get an a* in physics do you need an a* in both unit 4 and 5 or just average across unit 4 and 5???
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    (Original post by Middriver)
    How did you do it?
    Power * 5 * 60 = (raspberry mass + pan mass) * (c for raspberry + c for pan) * delta T

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    (Original post by ColeNate)
    5 minutes
    Power 60 Watts
    E = Pt = 5 x 60 x 60 = 18000J

    Then there were two mcθ you had to equate to?
    Power was 650W?
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    (Original post by pineneedles)
    Power * 5 * 60 = (raspberry mass + pan mass) * (c for raspberry + c for pan) * delta T

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    Same




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    (Original post by pineneedles)
    Power * 5 * 60 = (raspberry mass + pan mass) * (c for raspberry + c for pan) * delta T

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    Ah right thanks.
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    (Original post by WeLikeIke)
    To get an a* in physics do you need an a* in both unit 4 and 5 or just average across unit 4 and 5???
    Average across both, so you could get 100% in U4 but 80% in U5, also remember your coursework needs to be 90% UMS
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    (Original post by LypeX)
    Average across both, so you could get 100% in U4 but 80% in U5, also remember your coursework needs to be 90% UMS
    Thanks thats a relief
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    Tbh it was an alright paper considering physics is my weakest subject , however there was some mind**** questions like that specific heat capacity being inversly propotional to atomic mass LOL
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    mandem physics is a myth i just want a B lool
 
 
 
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