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Physics: Post your doubts here!

Discussion in 'International A And AS Level' started by XPFMember, Sep 29, 2011.

  1. MelvinW

    MelvinW

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    I got 7.14
     
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  3. MelvinW

    MelvinW

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    0.7 is a bit high....
     
  4. angryrider_56

    angryrider_56

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    damn it.....what was urs tho?
     
  5. angryrider_56

    angryrider_56

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    if u also say 0.5 am going to cry...
     
  6. MelvinW

    MelvinW

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    Well minus the part where i divide my values by 5.6x10^-3 (my value (also i used cm)) i got 0.42
     
  7. A*****

    A*****

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    I'm asking for the absolute uncertainty to get an idea of the %age uncertainty bqz that depends on our working only if the a.u is correct...I took it as 3°, divided by 12 x 100= 25%
     
  8. Tauqir_hamed

    Tauqir_hamed

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    I took (2 / 13) * 100
     
  9. Tauqir_hamed

    Tauqir_hamed

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    Also, the questions where they said measure the length.. i wrote in the line ( 40 cm = 0.400 m ) is it fine
     
  10. A*****

    A*****

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    I used cm but got a gradient above 80...the x axis values were very low that's why maybe
     
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  11. A*****

    A*****

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    Is 3° fine instead of 2?
     
  12. A*****

    A*****

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    Yes
     
  13. Tauqir_hamed

    Tauqir_hamed

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    I guess so
    In the error and improvement part, is writing " large uncertainty in the value of A " as an error and " use a thinner string " as improvement correct ?
     
  14. A*****

    A*****

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    Yes correct
     
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  15. Tauqir_hamed

    Tauqir_hamed

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    I got my gradient as 0.652 and y intercept as - 0.165
     
  16. angryrider_56

    angryrider_56

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    i took my uncertainty for the protractor to be 0.5degrees (the school supplied us with a really big compass) so i took 0.5*14.5(my A) and then ANS/14.5 x 100 and got 5%
     
  17. angryrider_56

    angryrider_56

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    hope the difference between my answer and urs is because of differences in our circuits :'( cuz my classmates too got 0.5-0.6ish idk about my teacher
     
  18. FairyTail

    FairyTail

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    Yea even I sued 5%
     
  19. FairyTail

    FairyTail

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    Anyone knows material for paper 22 biology
     
  20. angryrider_56

    angryrider_56

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    No problem fam, and unfortunately no idea about chem cuz i dropped it, plus our variant is 34 for chem anyways :/
     
  21. A*****

    A*****

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