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OCR Twenty First Century Science Physics P1-7 *Official Thread 2016*

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    (Original post by bmgaic)
    I was thinking the same for some of them, including the digital/analogue waves about how noise affects it (it does affect both, but digital can be cleaned up)
    That was my thinking exactly!
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    (Original post by Wisdom2)
    Alright test! Some parts easy, some parts hard and confusing!

    For the 2nd six marker question who got a power of 307.2?
    me thnk god
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    did anyone get 0.05 Kwh for one of the calculation questions?
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    And yes, i too got 307.2 for 2nd 6 marker
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    i put 310 just to round it up to a more rounded figure, should this be fine?
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    (Original post by Sum Ting)
    did anyone get 0.05 Kwh for one of the calculation questions?
    I got this also (because 1kWh = 1000 W therefore you had to divide the power by 1000 and convert the time into hours)
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    (Original post by Sum Ting)
    did anyone get 0.05 Kwh for one of the calculation questions?
    I got 180 what did I do wrong??
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    (Original post by NiamhM1801)
    I got 180 what did I do wrong??
    i got 180 too it waant joules so i thought u had to do 600 * 60 * 5 which is 180000 and 180kwh
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    (Original post by LokiiR)
    i got 180 too it waant joules so i thought u had to do 600 * 60 * 5 which is 180000 and 180kwh
    Yeah they were exactly the answers I got!
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    (Original post by Sum Ting)
    did anyone get 0.05 Kwh for one of the calculation questions?
    I got that but I now don't see how it can be right. If the drill used 0.6kW in 5 minutes (1/12 of an hour) then it can't be 0.05kWh, as that's less used in an hour than 5 minutes, or am I doing something wrong here?
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    Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh
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    (Original post by Sum Ting)
    Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh
    Yep!
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    (Original post by Sum Ting)
    Kwh is energy transferred which is 0.6 (kw) times hours (h)- its 5 minutes so is 1/12th of an hour- u multiply and get 0.05kwh
    That's what I did and what I put but it didn't seem to make sense
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    (Original post by NiamhM1801)
    I have very brief notes on P1-6 which I can PM you if you like? They're by no means very good but they might help a little? Also do you have a revision guide?
    Can you pm me some notes on p4-6 thanks x
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    Hey Ben could you post or pm me notes like these but for additional physics so p4-6 please and any you might have for additional chemistry c4-6 if you do
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    (Original post by Char4ncubex)
    Can you pm me some notes on p4-6 thanks x
    Done - they're in the format I make notes in so sorry if it's a little confusing
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    In the last six marker, I mentioned about loads of primary sources, said issues and advantages ( including renewables) and then came to a conclusion, it that alright?
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    (Original post by MezmorisedPotato)
    In the last six marker, I mentioned about loads of primary sources, said issues and advantages ( including renewables) and then came to a conclusion, it that alright?
    In all honesty I can't remember what the question was or what I wrote, but it sounds pretty good to me
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    (Original post by NiamhM1801)
    Done - they're in the format I make notes in so sorry if it's a little confusing
    Thanks very much x
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    (Original post by Char4ncubex)
    Hey Ben could you post or pm me notes like these but for additional physics so p4-6 please and any you might have for additional chemistry c4-6 if you do
    Will do, I think I have them for all sciences, 1-7 if I remember correctly
 
 
 
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