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Recent content by Starry_night

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    Results: CIE May/June 2013 Examination Series

    At the same centre where I studied my other subjects :)
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    Results: CIE May/June 2013 Examination Series

    Over the moon about A Level grades: Mathematics A* Physics A* Chemistry A* Psychology A* AICE Diploma: Distinction
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    Which is harder Chemistry CIE or Edxcel

    Funny you should mention Imperial. I visited the admissions tutor for Chemical Engineering and, after asking him twice to confirm, he made clear that they do not distinguish between exam boards. I guess it really is a subjective issue, as different departments and admissions tutors will differ...
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    Which is harder Chemistry CIE or Edxcel

    This is wrong. I agree that CIE Chemistry is harder and more rigorous than Edexcel Chemistry. But it is not true that doing Edexcel sciences will not get you into any UK university. Edexcel and other similar national-based boards such as AQA and WJEC are taken by the vast majority of students in...
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    What will be my GRADE???????

    Guys I'm worried about my A Level grade in Chemistry. What do you think it will be based on the following scores: I got 98 marks total in AS (84%), then I think P4: 80-85/100 P5: 22-25/30
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    How was physics paper 51!

    Yeah I got W = 2.1x10^-3 . What was the gradient of your lines? and the y-intercept?
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    Solved physics Paper 5??

    Guys how do you find the absolute uncertainty in the gradient and y-intercept: is it gradient/y-intercept of line best fit - gradient/y-intercept of worst line? Also, how do you find the minimum and maximum gradients to use, for example, in the equations on the last page of this to find max...
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    How was physics paper 4

    I put g=GM/r^2 for both of them and cancelled out GM from the ratio as this is constant for both planets. So the ratio turned out to be the ratio of the two radii squared... What did u do there?
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    Phy p 41

    I also put that it remains the same. How sure are u that it's wrong?
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    Phy p 41

    What was the answer for the one where it asked for the effect on emission of electrons if u maintained the intensity of light but increased its frequency? Also which of the given metals would electrons be emitted from?
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    Phy p 41

    Yeah, but if I'm remembering correctly, the question said that a radio wave was being modulated, ravio waves belonging to the EM spectrum and travelling at c (3x10^8 ms-1)
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    Phy p 41

    I used v=lambda x freq of carrier wave. Wasn't the speed of wave 3x10^8 ms^-1 (as it was a radio wave so belongs to electromagnetic spectrum)?
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    Phy p 41

    I think I got like 3.something x10^-12. Did anyone else get something like this?
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    Phy p 41

    Ok, then I think you could change this value to peak first and then apply the turns-ratio equation to find peak in secondary coil. Or you could directly find the rms at secondary coil and then chage the result to peak. What did u get there?
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    Phy p 41

    Was the value they gave us of 9 V peak or rms?
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