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Edexcel Physics Unit 2 "Physics at work" June 2013 watch

  • View Poll Results: The last question - Does resistance increase or decrease?
    It increases ( using V=IR or some other method)
    70.73%
    It decreases using the 'lattice vibrations' theory
    29.27%

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    (Original post by [email protected])
    Remind me the question please
    the one with two waves points X and Y
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    (Original post by hamzeh h)
    the one with two waves points X and Y
    I think i ticked C , but I could be wrong dont really remember
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    (Original post by flou_fboco)
    I got the same that's another 1 mark
    YAY!!!:cool:
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    Guys has anyone confirmed with their teacher whether the answer to the last q is to do with the filament/vibration idea?
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    (Original post by [email protected])
    I think i ticked C , but I could be wrong dont really remember
    I put cuz I thought y was 90 degrees out of phase
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    could anyone upload the multiple question with Doppler effect please?
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    Hello mates, hope you are doing well!!

    I am pretty sure mcq - 3 is C.. By simply comparing the two waves you see that X reaches trough faster than Y so this means it is ahead of it... Maybe I am wrong,
    so what do u think?
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    What did everyone get for the corrosion question?
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    owww I could not agree more with you! pf22
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    (Original post by Alexsk)
    could anyone upload the multiple question with Doppler effect please?
    Sorry, don't have the paper but i believed i ticked C
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    which option was C?
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    (Original post by pf22)
    Hello mates, hope you are doing well!!

    I am pretty sure mcq - 3 is C.. By simply comparing the two waves you see that X reaches trough faster than Y so this means it is ahead of it... Maybe I am wrong,
    so what do u think?
    I hope ur right cause if u r then im right too.[/s]:banana::banana::banana:
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    (Original post by Alexsk)
    which option was C?
    The one with the 2 arows coming towards each other
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    1. (Original post by Alexsk)
      owww I could not agree more with you! pf22

    owww thank you really much Alexsk :P
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    (Original post by [email protected])
    The one with the 2 arows coming towards each other
    yeep thats what I answered as well!
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    Do you remember what the option said for the two arrows being opposite to each other?
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    (Original post by Alexsk)
    Do you remember what the option said for the two arrows being opposite to each other?
    C i think that was the right answer
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    (Original post by Alexsk)
    Do you remember what the option said for the two arrows being opposite to each other?
    I Don't remeber the question well, but if it was a choice of increase or decrease, I believe it was decreased
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    Guys anyone remember the answer to the corrosion question?
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    (Original post by Alexsk)
    Do you remember what the option said for the two arrows being opposite to each other?
    I think that's c or d. more likely c tbh
 
 
 
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