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  1. M

    Important topics to revise for biology P1!

    You sure you didn't confuse biology with chemistry? :p
  2. M

    HELP IN UNCERTAINTY QUESTION PLSSSSSS! AS level physics. Simple if you know it!

    your guide says "If single readings have been taken then the uncertainty should be the smallest interval or division on the measuring instrument. Consider the example below." clearly emphasizing on the "single" - in a ruler you take two readings :)
  3. M

    HELP IN UNCERTAINTY QUESTION PLSSSSSS! AS level physics. Simple if you know it!

    It should be, but if you're taking 2 readings the uncertainty multiplies. the first reading is when you're placing your zero at the edge of what you're measuring (+ or - 0.5mm) and the next is the reading you're taking (+ or - 0.5mm) add them together and you get ( + or - 1mm)
  4. M

    HELP IN UNCERTAINTY QUESTION PLSSSSSS! AS level physics. Simple if you know it!

    Uncertainty is the half of the smallest unit on the apparatus being used... In this question, the smallest unit is the millimeter, so half a millimeter is your uncertainty - but state it in the form of a meter so it's going to be:- (your answer) + or - 0.5 x 10^-3 m
  5. M

    I am really worried! Please help?

    I think you could get a B - the grade thresholds do fall down pretty low :/
  6. M

    Chemistry Paper 22: Discussion and Grade Threshold

    No I said that it was an alkene - because then it would make sense if you react it with steam and the dilute/conc. acid
  7. M

    Chemistry Paper 22: Discussion and Grade Threshold

    What did you guys draw in the organic flowchart? adding H2SO4 etc... and is it error carried forward...?
  8. M

    Chemistry Paper 22: Discussion and Grade Threshold

    I found this paper harder than the pastpapers I'd practiced :/
  9. M

    Chem P2: How was it?

    My paper went horribly! :'( Almost everyone in my centre did bad... How did you guys do so well?
  10. M

    Chem p33 grade thresholds? My paper went terribly :'(

    I wrote bromide too :/ but it was iodide
  11. M

    Chem p33 grade thresholds? My paper went terribly :'(

    Ahh reading all this makes me feel like I'm not the only one who screwed up really bad and I love practicals :') I'm really hoping the grade thresholds fall really low...
  12. M

    Chemistry MCQ notes? Urgent (:

    oh by the way, I added you on msn so go accept me now...
  13. M

    Chemistry MCQ notes? Urgent (:

    this is so random...
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