Physics paper 5 past paper question

[Sapphire]

Hiii >.< has anyone done 9702_s13_qp_52 before
im not sure about some of the answers for question 2...
Like what would be the answer to the last two questions for
%uncertainties.

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s13_qp_52.pdf

 

[Farhana.sultana]

Same here 2nd ques d prt value of E is too large :/ I got 58410 help me any1

 

[Sapphire]

ooh i got 36360 for that 　what was ur absolute uncertainty for the gradient of line of best fit in c)iii)

 

[Sapphire]

what was ur gradient how can ur E be so big -.-

 

[Farhana.sultana]

Gradient I got -(4.28(+_)0.47)in to 10*-6

 

[Sapphire]

for di) to work out E:

E=4b/gradient=【4x(4x10^-2)】/ （4.28x10^-6)
=37383
=36000ish.... >.>