Physics oct/nov 34

[Muhammad Haris Ghani]

Irrespective of what the marking schemes say CIE also understands that this may vary slightly from centre to centre because of equipment difference. If many others at your centre got similar results it will be accepted.

k supported or not

 

[Muhammad Haris Ghani]

Mine was but for a lot of others it was not, what about you?

my k was not supported as well

 

[Muhammad Haris Ghani]

Mine was but for a lot of others it was not, what about you?

anywhy best of luck for other papers

 

[PrincessLuna]

my k was not supported as well

My physics teacher made some calculations and said that mathematically it should be supported, but cie should not penalise as long as your calculations for k confirm your deduction. i.e close values supported ....differing values reject

 

[PrincessLuna]

anywhy best of luck for other papers

you too

 

[Sa_2018]

yes one point was out of line what about ur angles

How was your gradient -0.09?? I got -27 as the gradient, what did others get?

 

[PrincessLuna]

How was your gradient -0.09?? I got -27 as the gradient, what did others get?

depends on the units of measurements and probably centre's springs provided. A my centre most people got between -0.08 and -1.00

 

[Musab100]

i

I also got negative gradient which was -0.132 and intercept was 8.227

got almost the same gradient and y-intercept

 

[Omar Shahid]

What topics were the qs from?

 

[Muhammad TAimoor]

My Gradient was -0.1 EXACT! Y-intercept was around 6.75 to 7.00 maybe.
Uncertainity was waay too much, about 71.8% and k was not supported, obviously!
For the second question, I merely Approximated the angles, about 36 and 45 degrees..
According to the supervisor, my practical was on the right lines, with the same answers he got. And I guess, everyone else nearly got the saame.
So CHEERS!

 

[Immadp]

i got a positive gradient and you ??? hey guys if you got a negative gradient then what were your values for A and B???
For A, it was the same as my positive gradient and B was y-intercept.

you did it wrong.. Gradient was negative! just think overall extension (A-B) was decreasing as we went along the ruler and if we divide it by any constant like we had C, the value will decrease gradually!

 

[BAOOZHEN]

how do you find gradient and y intercept?

 

[***amd***]

how do you find gradient and y intercept?

take 2 points from the line graph {e.g. P1(x, y), P2 (X, Y)
divide the differences in the points of both the axes and the difference of Y axis values must be the Numertor
e.g.
(Y - y) / (X- x) = gradient

Y intercept is the point where the graphs cuts the y-axis, its value can be estimated by seeing the plot, or calculated with the help of equations provided

hope you understand.

 

[Muhammad Haris Ghani]

I think so my angles are a bit wrong only while all other ans are correct so how many marks would be deducted my k was also not supported so pls ans me

 

[Muhammad Haris Ghani]

i
got almost the same gradient and y-intercept

I think my angles are a bit wrong and the remaining are all right k is not supported as well so how many marks would be deducted

 

[hela]

i got a negative gradient.

PAPER 33 PHYSICS OCT/NOV 2013 ANY ONE HAVE ANY IDEA PLEASE POST THE APPARITUS

 

[hela]

I think so my angles are a bit wrong only while all other ans are correct so how many marks would be deducted my k was also not supported so pls ans me

PAPER 33 PHYSICS OCT/NOV 2013 ANY ONE HAVE ANY IDEA PLEASE POST THE APPARITUS

 

[hela]

k supported or not

PAPER 33 PHYSICS OCT/NOV 2013 ANY ONE HAVE ANY IDEA PLEASE POST THE APPARITUS

 

[22shimmer22girly]

That sounds very wrong. Its definitely a negative gradient. You'll probably lose a lot of marks for graph and table of values. Did you plot length on x axis and the A-B/r on y axis?

Yes i did, my gradient was 0.052 something and yintercept was 0.42.

 

[22shimmer22girly]

you did it wrong.. Gradient was negative! just think overall extension (A-B) was decreasing as we went along the ruler and if we divide it by any constant like we had C, the value will decrease gradually!

are you definite that the gradient was negative ???? i got positive values...