Join TSR now and get all your revision questions answeredSign up now

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

    Offline

    10
    ReputationRep:
    (Original post by MSB47)
    I honestly hope the 6 marker for astro is stellar evolution and not big bang :/
    It was big bang last year wasn't it? So very unlikely to come up again! Stellar evolution does seem pretty likely.
    Offline

    6
    ReputationRep:
    i revised the **** out of this exam i better be getting that A*!!!!
    Online

    16
    ReputationRep:
    (Original post by a.a.k)
    Still does work for me. Solution plz.
    Thnx

    Posted from TSR Mobile
    Sorry, how do you mean?


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by Mehrdad jafari)
    Sorry, how do you mean?


    Posted from TSR Mobile
    I am trying to work out velocity from k.e (k.e =eV right??) But keep getting (v) as bigger than speed of light.:dontknow:

    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by SuperMushroom)
    The image produced is smaller than the object
    Thanks
    Offline

    2
    ReputationRep:
    Turning points 6 marker preductions??

    Turning points - Previous 6 markers:
    June 14' - TEM microscopes
    June 13' - Hertz radio waves experiment (with stationary waves context)
    June 12' - Wave-particle duality of light
    June 11' - Double Slit experiment (with reference to Newton's and Huygen's theory of light)
    June 10' - STM microscopes
    Offline

    2
    ReputationRep:
    Can someone help with 2bi please...

    Name:  image.jpg
Views: 93
Size:  162.9 KB
    Offline

    2
    ReputationRep:
    (Original post by palaseum9)
    Turning points 6 marker preductions??

    Turning points - Previous 6 markers:
    June 14' - TEM microscopes
    June 13' - Hertz radio waves experiment (with stationary waves context)
    June 12' - Wave-particle duality of light
    June 11' - Double Slit experiment (with reference to Newton's and Huygen's theory of light)
    June 10' - STM microscopes
    Millikan this year probably???

    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by a.a.k)
    Millikan this year probably???

    Posted from TSR Mobile
    I'd absolutely love such a question
    Offline

    6
    ReputationRep:
    can anyone tell me what the last 6 markers have been on?? Sect A and Astro
    Offline

    3
    ReputationRep:
    (Original post by saad97)
    Can someone help with 2bi please...

    Name:  image.jpg
Views: 93
Size:  162.9 KB
    Use P=σAT^4 where A=4πr^2
    Online

    16
    ReputationRep:
    (Original post by a.a.k)
    Millikan this year probably???

    Posted from TSR Mobile
    I will not look at the microscopes at all even if i know they will come up lol


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by Gome44)
    Use P=σAT^4 where A=4πr^2
    I have and I've formed a ratio equation but the mark scheme is weird, it's squared one bracket and put the other to the power of 4? :/
    Offline

    2
    ReputationRep:
    (Original post by Mehrdad jafari)
    You don't need the velocity. Are you talking about the sane question as Jimm asked?
    Attachment 431225


    Posted from TSR Mobile
    When i plug some numbers it 2.2 doesnt turn out .Name:  1434564443958.jpg
Views: 70
Size:  35.0 KB

    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    http://filestore.aqa.org.uk/subjects...P-JUN13.PDFhey guys could someone please explain to me why in 4 b (iii) after finding the volume the markscheme done mass times volume.I thought if I equated the densities it would be mass divided by volume.thanks in advance
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by kevincarreira)
    can anyone tell me what the last 6 markers have been on?? Sect A and Astro
    In the first post of the thread Lau14 has compiled them!


    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by MSB47)
    Well the original equation for inverse square law for gamma is I=k/x2 Right?

    If so the k=Io/4pi and the x represents the distance from the sources.

    Hope this makes sense
    But k is on top and 4pi is on the bottomName:  image.jpg
Views: 105
Size:  501.5 KB
    Offline

    3
    ReputationRep:
    (Original post by saad97)
    I have and I've formed a ratio equation but the mark scheme is weird, it's squared one bracket and put the other to the power of 4? :/
    I have no idea then, but remember you've been given diameter
    • Study Helper
    Offline

    3
    ReputationRep:
    (Original post by CD223)
    In the first post of the thread Lau14 has compiled them!


    Posted from TSR Mobile
    dude when i click it nothing comes up???

    http://prntscr.com/7i3s6y
    Offline

    0
    ReputationRep:
    For question 4(a)(i) Why do you have to multiply threw by 0.5? Can't figure it out
    Thanks
    http://filestore.aqa.org.uk/subjects...C-QP-JUN12.PDF
 
 
 
Poll
Which web browser do you use?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.