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  1. W

    Physics P5 uncertainty help

    Oh boy I don't understand how to find V :S I need to print it and focus I guess Brb laterz with a possible solution :P
  2. W

    Physics P5 uncertainty help

    Y-intercept means where ur line cuts the y-axis when x = 0 if you don't start with a scale of 0 on x-axis, you can never find y0intercept without calculating. So how to you find the y-intercept? Example: You plotted your points and made ur line of best fit. Now you take any point on the line...
  3. W

    Physics P5 uncertainty help

    I think it may happen, they made easy papers i think they will rip us with tomorrows paper. Prepare for worst. I wasnt going to revise for that, but I guess i will go grab my notes
  4. W

    Physics P5 uncertainty help

    Oh that's hard I dunno myself :S Im going to do this :O
  5. W

    Physics P5 uncertainty help

    I had a hard time with that 2009 paper :D 1 point was not even on the line
  6. W

    Physics P5 uncertainty help

    Hehehe I bet that Nov 2009 p51 :P u just use calculator and find the increment of 1 little square using proportion u can find 0.4 is how many squares ;)
  7. W

    How was Physics P42

    I dun :S but first time I calculated I got the 1.0 thing but I rechecked thrice it wasn't the same :S I hope i didn't made a mistake there :S
  8. W

    How was Physics P42

    :D Ki zour :O :O
  9. W

    Physics P5 uncertainty help

    Okay I have checked the paper. Well here is the expln: TO find b it's simple, you take 1 point on your Line of best fit(which you used to calculated gradient) and then you take g best and you replace in euqation to find t ;) Now for the undertainty, use the equation in the Mark scheme...
  10. W

    How was Physics P42

    Increasing sampling frequency decreases the step-depth. Thus accuracy of reproduced signal is improved. Using a larger number of bits decreases step-height. Again, accuracy improves. Zelev heetun sa :O
  11. W

    Physics P5 uncertainty help

    1. You do not do to 2 dp. If it's 8.111 try your best to put it near to 8.111 that is a very little bit higher than 8.11. You should not neglect any of the dps, it's really important. 2. I will give u that in a while ;) I don't think there will be hall probe last yr they gave it :P
  12. W

    Physics P5 uncertainty help

    That;s a nice question u got there, lemme go and solve it and I will come back with answers :D
  13. W

    How was Physics P42

    The electrons didn't emit in the quantum question last part? - Nop cuz photon energy < Work function And what happened when sampling frequency increases and longer notes instead of short notes? Didnt put anythin what were the two faces at which force was experienced ? Forgot wat i put and...
  14. W

    Physics P5!!

    Nop, the MS itself tells you wat to use ;)
  15. W

    Physics P5 uncertainty help

    Example: Find lg R and its error and record in the table R =231 +/- 10 (3s.f) lg R should be to 3 sf lg 231 = 7.85174904142 => lg 231 = 7.852 (to 3 sf) Notice in lg 7.852 is to 3 s.f and not 4. The numbers before the . do not count E.g : 0.039 = 3 sf 3.430 = 3sf 3.4503 = 4sf 0.0002 = 4sf...
  16. W

    How was Physics P42

    Lawl, Privacy, nice!
  17. W

    How was Physics P42

    I just realised ur from Mauritius :P Ki lekol ? :D
  18. W

    How was Physics P42

    Ya I'll just rip this P5 and P1 now :P done too much silly mistakes in P4 :(
  19. W

    How was Physics P42

    there was no Km, radius was in m.
  20. W

    How was Physics P42

    Hehe lol, I knew exactly wat to do in electronics, but instead of putting the sides as square i made them curvy and saturated at+-5 :( I hope i lose only 1 mark cuz i showed how it's saturated etc :(
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