How was Physics P34?

[SMAMN26]

How was the paper?

 

[rahulsharma]

Nice one..just little problem to plot the graph!!

 

[anandita]

can u plz tell me what could be the grade boundary for an A in this paper? i made a few(or a bit more) silly mistakes. my thickness was wrong which made my other answers related to it wrong(5 marks). also my gradient calculation was wrong which made my y-intercept and the values of A and B wrong( 4 marks). and ofcourse I'll lose marks for the limitations part.
thank you

 

[wrakor89]

i took the wrong reading for the thickness. how many points maximum will i lose? and was the relationship valid or not?

 

[Abdulrab]

relationship was valid

 

[Emily793]

va;id or not you will get your marks cambridge only checks if you know how to calculate it! does anyone have the answers?? pm me guys!

 

[mimi5959]

OKAY GUYS FOR MY thickness 't' i got 0.365mm.... is that alright?.....also my gradient was positive and the y-intercept was negative... and can anyone pleas tell me what limitations and improvements are correct?

 

[yali2012]

Guys.. for the thickness, it said that it should be next to the hole... therefor, the reading should has been taken in the white region not on the transparent side.... can any one confrm that for me please?????

 

[SMAMN26]

I dont think so, coz we needed to find A(area) of the shaded region which was on the polythene part (as far as i remember in the diagram it was shown between the slots) so its not logical to take thickness from the tapped part (white part) of the strip! So we should have taken thickness of the transparent polythene side, not the white part of the strip! i hope so um not wrong!

 

[yali2012]

In the case its wrong, i will lost some 5 points, in this question, i can get some 14 out of 20, i guess... I hope so

 

[Emily793]

hey what were your answers?? pm me guys! thnx

 

[mufc102]

hey guys if i calculated my thickness t wrong how much marks will get deducted from the whole question cause everything else was correct for sure

 

[SMAMN26]

Guys what ware ur gradient and y intercept. and the units of 'a' and 'b' ?

 

[Emily793]

grdient 3.3 and y intercept -1.65

 

[SMAMN26]

i got my gradient 3.0 and y intercept -1.5.... what SI units did u give for 'a' and 'b' ?