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Edexcel International A level (IAL): Physics Unit 6 (WPH06) - 19th May, 2016 - PM Watch

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    (Original post by The_Big_E)
    What graph did you guys say to plot to find Cx for the capacitor question?
    V2 against (V1-V2)
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    (Original post by The_Big_E)
    What graph did you guys say to plot to find Cx for the capacitor question?

    V2 against (V1-V2)
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    yea v2 against (v1-v2) and gradient=cx/cy so cy=grad/cx
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    (Original post by Aimen.)
    yea v2 against (v1-v2) and gradient=cx/cy so cy=grad/cx
    shouldnt cy be cx/ gradient?
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    I think it was the hardest paper..
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    what do u guys think
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    (Original post by Aimen.)
    Did somebody else get the value of p in Q#4 as -3553K?
    That's almost my value yeah but it can't be negative
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    yea pleasee.. i hardly got things correct in question 1.
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    (Original post by Kev__)
    shouldnt cy be cx/ gradient?
    oops yea it was cx/gradient , I did a mistake up there!
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    Any idea what the boundaries will be
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    In question 1.. how did u calculate W1? was it from the graph or using the gradient given? i found 0.65N using the gradient method. and 0.45N using graph.. shouldnt they be similar? or did i miscalculated from the graph?
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    (Original post by apocolyptic)
    Any idea what the boundaries will be
    something like this: Name:  Capture.PNG
Views: 212
Size:  6.0 KB
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    (Original post by Propoganda)
    In question 1.. how did u calculate W1? was it from the graph or using the gradient given? i found 0.65N using the gradient method. and 0.45N using graph.. shouldnt they be similar? or did i miscalculated from the graph?
    I did it from graph and it was 0.65 so they were equivalent cuz I matched with k value aswell and both methods gave 0.65 so probably you misread the graph!
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    what do u think the grade boundary will look like? will they do much scaling?
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    Okay. 1st Q: How'd you get the uncertainties? Did you use the graph anyhow? 2nd Q: Well I pretty much know what I got wrong there so whatevs. 3rd Q: .40+1.60=2.00s? 4Q: p=2.65 or sth? theoretical e=? This was so easy compared to the horror that was chemistry. Yet I choked. I feel effing miserable. Need the A too. 4 and 5 it is then, I guess
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    Question 1 killed the paper other than that its an okay paper
    Its the strangest Q1 paper ever
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    What did you guys write for the things we had to measure for the question involving the capacitor?
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    In 1st question i multipled the lengtg by the gradient to get the weight got like 1.023 that correct?
    And the uncertainity was 0.03
    And pecentage was 1.47% correct?
    And w2 also used same method and got .65 did what i do was correct
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    (Original post by Aimen.)
    oops yea it was cx/gradient , I did a mistake up there!
    Would this be right as well?

    V_2 = \frac{C_x}{C_y}(V_1-V_2)
    C_y V_2 = C_x V_1 - C_x V_2
    C_x V_2 + C_y V_2 = C_x V_1
    V_2 (C_x + C_y) = C_x V_1
    V_2 = \frac{C_x}{C_x + C_y} V_1

    Graph of V_2 against V_1 where \frac{C_x}{C_x + C_y} is the gradient.
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    (Original post by amohsen982)
    In 1st question i multipled the lengtg by the gradient to get the weight got like 1.023 that correct?
    And the uncertainity was 0.03
    And pecentage was 1.47% correct?
    And w2 also used same method and got .65 did what i do was correct
    I think all of that is wrong.
 
 
 
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