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

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    I made these unofficial mark schemes the other day. If anyone thinks any of the answers are wrong or something needs adding let me know!
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  1. File Type: pdf PHYA5 Section A Unoffical MS.pdf (515.3 KB, 418 views)
  2. File Type: pdf PHYA5 Section B (Astro) Unofficial MS.pdf (705.2 KB, 226 views)
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    (Original post by sam_97)
    I made these unofficial mark schemes the other day. If anyone thinks any of the answers are wrong or something needs adding let me know!
    I've only had a brief look at it but brilliant job, very well put together.
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    (Original post by sam_97)
    I made these unofficial mark schemes the other day. If anyone thinks any of the answers are wrong or something needs adding let me know!
    Great job. One suggestion, I feel there may be a mark in the astro six marker for specifying that the first peak is a result of the dimmer star obscuring the brighter star, and the second peak due to the brighter star obscuring the dimmer star as the drop in the first peak is larger than the drop in the second.
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    (Original post by HenryHein)
    I've only had a brief look at it but brilliant job, very well put together.
    Thanks a lot!
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    (Original post by JaySP)
    Great job. One suggestion, I feel there may be a mark in the astro six marker for specifying that the first peak is a result of the dimmer star obscuring the brighter star, and the second peak due to the brighter star obscuring the dimmer star as the drop in the first peak is larger than the drop in the second.
    Thanks! And yeah that's definitely worthy of credit The points for the 6 markers in the mark schemes are only brief, it's possible to go into more detail.
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    For Q5c did it not ask for root mean square speed? In which case you would raise to the power of 1/2
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    (Original post by kaziz)
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    For Q5c did it not ask for root mean square speed? In which case you would raise to the power of 1/2
    Nope just the mean square speed
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    (Original post by JaySP)
    Nope just the mean square speed
    rookie mistake
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    Also I'm still unsure as to what the mark scheme will allow for the maximum range of beta in air, different sources state different values. I learnt it as 5m :L
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    Does anyone who did the applied one want to check answers with me? Thank you.
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    Would 60/75 be 120 ums? Thanks for any opinions
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    (Original post by Jed-Singh)
    Would 60/75 be 120 ums? Thanks for any opinions
    Which module did you do?
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    Is there a unit 4 one yet?
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    (Original post by TheRAG)
    Is there a unit 4 one yet?
    Of sorts yes, in the first post of the unit 4 thread


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    (Original post by Jed-Singh)
    Would 60/75 be 120 ums? Thanks for any opinions
    I don't think so. I reckon it'd JUST be an A*

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    (Original post by JaySP)
    Nope just the mean square speed
    is that basically average speed rooted?
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    (Original post by Bealzibub)
    is that basically average speed rooted?
    No rooting involved look at Sam_97 MS, thats how I did it anyway.
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    How'd you find the PDFs?!
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    (Original post by QueNNch)
    How'd you find the PDFs?!
    You just need to accept that you can find it!


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    Just counted my marks lol, how much do you think 45/75 is on this paper? definitely a B?
 
 
 
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