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AQA Physics PHYA1 - 24 May 2016 - RESIT [Exam Discussion Thread] Watch

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    (Original post by ahlam H)
    I wrote particle X was a neutral meson with strangness k^0
    I wrote pi^0 because strangeness doesnt balance with k^0....
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    (Original post by Einstein1997)
    Pretty glad I revised diodes last night at 2am...

    What did you guys say particle X was?
    Pi 0
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    (Original post by Goldfly)
    Why was it a dot on the oscilloscope rather than a line? I think I misread the question and put because the battery provides a d.c current
    Time base turned off. It said horizontal line not vertical.
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    (Original post by Goldfly)
    Why was it a dot on the oscilloscope rather than a line? I think I misread the question and put because the battery provides a d.c current
    I don't think you misread it because that's what I put
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    (Original post by Einstein1997)
    Time base turned off
    That's what some people said. I don't remember the exact wording of the question because either could be right depending on if they meant vertical or horizontal line.
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    Anyone get neutral pion for X
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    (Original post by Einstein1997)
    Time base turned off. It said horizontal line not vertical.
    No, if time base is turned off then it'd produce a vertical line, not a dot
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    (Original post by CJWright97)
    K^0 i said
    That's what I put but it was worth three marks and I drew a little table, don't know if that counts as working. What are the other 2 marks for as I thought 3 marks for that question was a little excessive if they only want you to find the particle.
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    (Original post by Goldfly)
    Why was it a dot on the oscilloscope rather than a line? I think I misread the question and put because the battery provides a d.c current
    Its a dot because no current was flowing (the switches were open) therefore there would be no line
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    I think it said that k- decayed so the strangeness was not conserved so i put pi 0
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    (Original post by Shta15)
    Anyone get neutral pion for X
    yes
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    (Original post by CJWright97)
    Its a dot because no current was flowing (the switches were open) therefore there would be no line
    So many different answers?!
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    (Original post by Nerrad)
    https://quizlet.com/140227597/phya1-flash-cards/
    A little something I've been working on. Since most of the questions are often repeated, here's some of the questions and the mark scheme I've composed since 3 days ago. Hope you guys will find this useful
    that was very useful, have you created one for unit 2 ?
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    (Original post by Goldfly)
    So many different answers?!
    If there was no current, wouldn't there be no dot at all? lol since no power is going through the oscilloscope
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    (Original post by CJWright97)
    Its a dot because no current was flowing (the switches were open) therefore there would be no line
    Thats what i put. If the switch was open then there couldnt have been a line
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    (Original post by kelvin1338)
    No, if time base is turned off then it'd produce a vertical line, not a dot
    No, because a battery is d.c.

    Battery is dc which gives a horizontal line if the time base is on.
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    (Original post by Shta15)
    Anyone get neutral pion for X
    I did
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    (Original post by Einstein1997)
    No, because a battery is d.c.
    oh nevermind i realised my mistake aha
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    (Original post by Goldfly)
    Why was it a dot on the oscilloscope rather than a line? I think I misread the question and put because the battery provides a d.c current
    I just said the oscilliscope was not connected to the cirucit as both switches were open.
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    What were the two reasons to have a low resistance? I got that one was to provide a high enough current for the oven to function but I was unsure about the other one.
 
 
 
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