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    (Original post by Hsevras)
    q1 is 50 meters

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    (Original post by Lauren9699)
    It's 50 m not 50cm
    bbc bitesize says beta particles travel tens of centimetres in air?
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    (Original post by Lauren9699)
    It's Flemings RIGHT hand rule not left..
    Nope , igcse syllabus only uses left hand rule..... I think you may be mistaken
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    2.c) (I think) was "draw the magnetic field between the poles when the wire is removed"
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    (Original post by Lauren9699)
    It's Flemings RIGHT hand rule not left..
    And also it moves to the righr
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    (Original post by defenestrated)
    bbc bitesize says beta particles travel tens of centimetres in air?
    Correct answer is 50cm
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    (Original post by PlinyTheElder)
    2.c) (I think) was "draw the magnetic field between the poles when the wire is removed"
    You were supposed to draw a uniform magnetic field
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    what was the definition for the pitch of a sound wave?
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    will 120 overall be an A

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    (Original post by M12345678)
    what was the definition for the pitch of a sound wave?
    How high or low the frequency of the sound is , producing a tone is what I put
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    (Original post by M12345678)
    what was the definition for the pitch of a sound wave?
    frequency

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    (Original post by Hsevras)
    will 120 overall be an A

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    Yep around 135 will be an A star most likely for this one
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    (Original post by Handwritingman)
    Yep around 135 will be an A star most likely for this one

    will minimum A be around 115?
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    are all the answers in this unofficial mark scheme or is it missing a few?

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    for the charge = current x time question did anyone get:

    75/1000= 0.075s

    0.0017/0.075= 0.0226

    =0.023A
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    (Original post by Hsevras)
    are all the answers in this unofficial mark scheme or is it missing a few?

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    there are a few missing still
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    (Original post by Hsevras)
    will minimum A be around 115?
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    Maybe, around 117 I'd guess. This years papers were a bit harder than last years according to many and the grade boundrary then was 135 for A star 120 for A
    So maybe
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    (Original post by pk789)
    for the charge = current x time question did anyone get:

    75/1000= 0.075s

    0.0017/0.075= 0.0226

    =0.023A
    yeah
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    (Original post by Hsevras)
    are all the answers in this unofficial mark scheme or is it missing a few?

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    missing a few I think
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    (Original post by defenestrated)
    there are a few missing still
    Which ones?
    I'll try and help since I think I got all right other than last question where I started talking about radiation and conduction by accident!
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    (Original post by BOBQ)
    yeah
    K thnx
 
 
 
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