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

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    (Original post by aprocrastinator)
    this is great, thank you! also I love your handwriting :O
    Really? thanks haha! No worries.

    I've always been told it's messy! (I'm left handed )


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    (Original post by CD223)
    Really? thanks haha! No worries.

    I've always been told it's messy! (I'm left handed )


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    You havent seen my handwriting.
    When people look at it they immidiatly think i want to be a doctor.:awesome:

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    (Original post by jf1994)
    Can anyone doing medical physics explain to me when we should substitute negative values into the lens equation 1/f = 1/u + 1/v?
    I don't do medical, but in Astro it's when the image is virtual, so v becomes negative.


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    For the core unit:

    June 2010: What goes on in a nuclear reactor for induced fission
    June 2011: How pressure is exerted by gasses
    June 2012 Comparison of nuclei radius experiments, electron or alpha scattering
    June 2013: Determining a radioactive source
    June 2014: Half life of radioactive waste and how it should be stored.

    Those are the past 6 markers for anyone who's wondering.
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    (Original post by ifailedbad)
    I believe alpha decay occurs above the line as in past a proton number of around 80Attachment 431037
    Its below the line, take a look at the specimen paper
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    Can any one help with Q1cii) June 2013... Where does the value 1.00728 come from ??
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    (Original post by CD223)
    Really? thanks haha! No worries.

    I've always been told it's messy! (I'm left handed )


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    Na I like it! Mine is awful, my Ds look like As and my As look like Os....

    (Original post by a.a.k)
    You havent seen my handwriting.
    When people look at it they immidiatly think i want to be a doctor.:awesome:

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    I actually want to be a doctor and I have awful handwriting so
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    (Original post by NightStrider)
    Its below the line, take a look at the specimen paper
    Alpha tadiation starts after (120,80) i think

    http://www.bbc.co.uk/staticarchive/b...bead851756.gif

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    (Original post by aprocrastinator)


    I actually want to be a doctor and I have awful handwriting so
    That explains ur condition then lol

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    I think I have no potential left for this exam lol


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    (Original post by Mehrdad jafari)
    I think I have no potential left for this exam lol


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    Is this ur last exam. I have one more after this

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    Medical students: for treating myopia, image formed by lens is virtual, and for treating hypermetropia the image formed is real, is this correct?

    So in the lens formula, if you have to find an image formed by a converging lens, v will be negative, and for diverging lens v will be positive?
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    How much are we actually meant to remember about Chernobyl lol
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    (Original post by AR_95)
    How much are we actually meant to remember about Chernobyl lol
    Same as fukishima:ahee:

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    cop
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    (Original post by a.a.k)
    Is this ur last exam. I have one more after this

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    Yeah. If i don't get any potential by tomorrow then I will be done


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    (Original post by jf1994)
    Medical students: for treating myopia, image formed by lens is virtual, and for treating hypermetropia the image formed is real, is this correct?

    So in the lens formula, if you have to find an image formed by a converging lens, v will be negative, and for diverging lens v will be positive?
    ugh I still don't know this properly lol. But from what I have learnt, I think the image is formed at the uncorrected near point even when the object is at the aided near point therefore the image in both types of lenses is negative

    the image is virtual if the light rays aren't really coming from the point where the image appears.
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    (Original post by Jimmy20002012)
    Can anyone help me on second part of this question doing turning points don't seem to know how to do it?

    Attachment 431077


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    Anyone?


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    the grade boundaries for this unit last year were crazy low! http://filestore.aqa.org.uk/over/sta...-JUNE-2014.PDF
 
 
 
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