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

AQA Physics PHYA4 - Thursday 11th June 2015 [Exam Discussion Thread] Watch

    Offline

    19
    ReputationRep:
    (Original post by Kennethm)
    http://filestore.aqa.org.uk/subjects...1-QP-JUN14.PDF

    Q5 - the answer is D, does anyone else think its so counter intuitive? I thought it was C haha,
    Yeah I said D too but I was confused to why it wasn't C.

    It's a frictional force. The mass has a linear velocity which is trying to escape the orbit, so the frictional force makes sure the the mass doesn't fly off? Idk

    The one that's directed away from the centre is called the centrifugal force, but apparently we don't need to know that
    Offline

    1
    ReputationRep:
    Does anyone know how to mark these papers, there is 50 marks for part B and 25 questions for part A, but the conversion tables are out of 100 raw marks.
    So my question is, are the part A questions worth 2 marks each or is the raw mark a percentage?

    Edit: Figured it out, I was looking at PHYB instead of PHYA
    Offline

    3
    ReputationRep:
    (Original post by gcsestuff)
    Think I'm just gonna revise all the possible topics that will defo come up tomorrow (eg ones that haven't come up last year of the year before) and then that will be me done! I'm so stressed for this exam just because the marks between each grade are like 5 marks :/


    Posted from TSR Mobile
    What topics are they?


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by xela238)
    What topics are they?


    Posted from TSR Mobile
    All of them


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    Name:  ImageUploadedByStudent Room1433927351.567904.jpg
Views: 191
Size:  55.8 KB

    For question 8 I keep getting d, it's c


    Posted from TSR Mobile
    Online

    10
    ReputationRep:
    (Original post by CD223)
    I might do the same. Although we won't know why they differ :L praying someone can take the paper home with them. Otherwise we'll have to just debate random MC questions in any order and the answers people got for them.


    Posted from TSR Mobile
    At least it'll give us a rough estimate - there should be some questions that everyone gets the same for. I'll mark which ones I guess as well (if I have to guess any, and if I have time).
    Offline

    3
    ReputationRep:
    (Original post by xela238)
    6 Marker Predictions?
    Capacitor dis/charging
    Offline

    2
    ReputationRep:
    (Original post by palaseum9)
    Here's my solution:
    Thanks for doing that mate, makes sense now. I hate those sorts of questions!


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    Anybody got any predictions or the 6 marker? i really struggle on those
    Offline

    1
    ReputationRep:
    (Original post by JaySP)
    Capacitor dis/charging
    i wouldn't have thought that as the ISA was on that
    Offline

    3
    ReputationRep:
    (Original post by gcsestuff)
    Name:  ImageUploadedByStudent Room1433927351.567904.jpg
Views: 191
Size:  55.8 KB

    For question 8 I keep getting d, it's c


    Posted from TSR Mobile
    I got D first time, then i tried fifferent methid using energy stored, and power=work/time. Don't know why other method using Q=I/t doesbt work, if anybody could ahine sone light on it?
    Attached Images
     
    Offline

    2
    ReputationRep:
    (Original post by gcsestuff)
    Name:  ImageUploadedByStudent Room1433927351.567904.jpg
Views: 191
Size:  55.8 KB

    For question 8 I keep getting d, it's c


    Posted from TSR Mobile
    I just had a go, and got D also. It's as of we're missing a factor of a half somewhere


    Posted from TSR Mobile
    Online

    10
    ReputationRep:
    (Original post by JaySP)
    Capacitor dis/charging
    I wouldn't think so, this is exactly last years six marker?
    Offline

    3
    ReputationRep:
    (Original post by Klaxoii)
    I just had a go, and got D also. It's as of we're missing a factor of a half somewhere


    Posted from TSR Mobile
    See my abive answer
    Offline

    3
    ReputationRep:
    Ha! Really? I havent done June 2014 yet, nevermind guys!
    (Original post by Lau14)
    I wouldn't think so, this is exactly last years six marker?
    Offline

    2
    ReputationRep:
    (Original post by JaySP)
    See my abive answer
    I just saw, but as you say, I wonder why using Q= IT doesn't work


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    is there a specimen paper?!
    Offline

    2
    ReputationRep:
    Solution to that capacitor question:
    Attached Images
     
    Offline

    3
    ReputationRep:
    (Original post by Klaxoii)
    I just saw, but as you say, I wonder why using Q= IT doesn't work


    Posted from TSR Mobile
    Me too I've made that error before. Actually, could it be because current is not constant as it is discharging? I think this may be why?
    Offline

    1
    ReputationRep:
    last year i predicted that it was going to be young's modulus.... i believe that saved me.
 
 
 
Poll
Which pet is the best?

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.