So how was Physics P33?

[Xam]

tou how come x be zero? :S

 

[akbararshad]

by extending our graph till d y-axis to find d y-intercept

 

[kakarocks]

So technically speaking it SHOULD BE ZERO ? and what about gradient was it near 3.42 for you ? .

And in q2 what were your d values for 95 and 60 cm respectively for me it was 3.9 and 1 i think and what error did you have to use for % uncertainaty .1 or .2 ?

 

[outofjunk]

every1 will gt a different gradien nd y intercept..... m not sure abt ma one but ma grad was around 9 sumfin and y intercept was -1.02

I also got negative coz I did a lame mistake to draw the graph of T against X instead of T against 1/X......How lame? Did you do the same?

 

[akbararshad]

no, i drew ma graph perfectly..... dun knw y i gt negtve intercept

 

[abrraza]

question 2 was quite easy.. q1 was a bit technical as many candidates in my centre did a big blunder that they didnt made the clips to oscillate in right to left direction making an angle 45deg with verticle.. lol ... btw i twisted it :Yahoo!: Alhamdullilah ... my gradient was 4.67 .. and y intercept 0.0032 apprx 0 .... what i did was forgot write units of a and b ... that wre for a (s cm) for b (s) .. what will be the GT?

 

[abrraza]

So technically speaking it SHOULD BE ZERO ? and what about gradient was it near 3.42 for you ? .

And in q2 what were your d values for 95 and 60 cm respectively for me it was 3.9 and 1 i think and what error did you have to use for % uncertainaty .1 or .2 ?

we had to use 0.2 ...

 

[ahmed t]

u guys are lucky
in november i had to use a variable resistor and had no clue of how it worked!
worst exam ever physics p3, hate it

 

[SMAMN26]

So technically speaking it SHOULD BE ZERO ? and what about gradient was it near 3.42 for you ? .

And in q2 what were your d values for 95 and 60 cm respectively for me it was 3.9 and 1 i think and what error did you have to use for % uncertainaty .1 or .2 ?

My d for 95 was 2.4 and for 60 it was 0.6!

 

[Hateexams93]

i got 3 for my gradient and o.6 for y intercept

 

[Hateexams93]

lol but the improvements and difficulties i messed up

 

[sadabrahman]

hey, newbie here. Gradient is actually negative. Our sir also did the practical exam with us and he said it was negative. He also gave a reason about which i understood nothing. But it is confirmed that gradient is negative. Btw, my values of k were not proportional. How many marks would i lose ...

 

[turboboy]

The graph was positively increasing , how can it be -ve!!!?

 

[huzaifa]

gradient is not negative -__-.....y-intercept in negative!!.............my gradient was 5.67 nd intercept was -0.5....

 

[wahab305]

guys gradient has a range btw..............................but the y intercept is 100 percent negative coz if u put the values i.e gradient lies between 2 to 8
ur y=mx+c will give negative value of c...................and are we suppose to write units

 

[dravid]

any idea wt will km in d second variant phy practical?

 

[msk]

guys gradient has a range btw..............................but the y intercept is 100 percent negative coz if u put the values i.e gradient lies between 2 to 8
ur y=mx+c will give negative value of c...................and are we suppose to write units

I totally agree with u man! see there will be no y-intercept actually but if u extend the line then it goes into the negative column.....so y-intercept had to be negative whereas gradient will vary alot according to your readings but it will surely be positive!

 

[kakarocks]

I just remembered my gradient was actually 3.99 - 0.5/1.05-0.11 = 3.71 And i used .1 for % uncertainity as 0.05 is in one reading right ? so two would have .1

 

[hassam]

well guyx...there is one mork for correct read-off for y -intercept and no quality mark for y interecept.....!!!.............quality marks are for a and b....nd i think y intercept.... -.5<x<+.5...m dead sure this will be correct range cos it should have been zero...bt we r nt PERFECTIONISTS!!!
and gradient....i dont now i got 4.47

 

[sadabrahman]

i m so sorry... the gradient was positive. y-intercept was negative. sorry guys