physics paper 1 2011 discussion

[TheMightyWalrus]

Didn't realise it wasn't 24 hours yet. Apologies

 

[adityar]

The thing with the barometer question is that liquid pressure is affected by 3 things only: density of the liquid, gravitational acceleration, and the depth of the liquid.

Both X and Y were at the same depth, and since the density of mercury and gravitational acceleration is constant the pressure at points X and Y should be equal.

U know why the pressures were not equal, because the more volume of liquid, the more it tries to escape a container and so the pressure is high due to the tendency of the fluid (mercury) to overflow.............. =@ =@ =@ =@

 

[adityar]

Didn't realise it wasn't 24 hours yet. Apologies

Me tooo!!

 

[DowntownCrew]

I wrote x had less pressure because in y there was more mercury, meaning more pressure in the deep... What was the extension question; I wrote 300...

I think you and Ahmoosh are both wrong , there was 10 , 20 and 30 and on 20 it was 100 , question said it is DIRECTLY proportional so on 10 it was 50 , on 20 it was 100 and on 30 it was 150.I don't know how you get 300 , Ahmoosh probably thought it goes a double but no .. check your book and see

Btw my friend is really boring , asking me all the time after exam about some leaf and rule , and his answer was 29mm ; which question was that ?? :Search:

 

[Romani2011]

i put that pressure ay X is the same as pressure at Y

 

[Ahmooosh]

I wrote x had less pressure because in y there was more mercury, meaning more pressure in the deep... What was the extension question; I wrote 300...

I think you and Ahmoosh are both wrong , there was 10 , 20 and 30 and on 20 it was 100 , question said it is DIRECTLY proportional so on 10 it was 50 , on 20 it was 100 and on 30 it was 150.I don't know how you get 300 , Ahmoosh probably thought it goes a double but no .. check your book and see

Btw my friend is really boring , asking me all the time after exam about some leaf and rule , and his answer was 29mm ; which question was that ?? :Search:

haha man , i just checked all question past papers 1 , and found the same extension question , answer is 200g . http://www.xtremepapers.me/CIE/Cambridge IGCSE/0625 - Physics/0625_s05_qp_1.pdf question 8

 

[Romani2011]

i put that pressure on X is the same as pressure on Y... i hope u all did well

 

[mshaheen95]

what about the prism question????

i put that speed of red is decreased more than violet

 

[Romani2011]

i remember i put D for the dispersion question

 

[Romani2011]

an by the way, half of the exam has repeated questions from the past years

 

[mshaheen95]

i remember i put D for the dispersion question

D? can u remember details please?

 

[Ahmooosh]

speed of violet decreased more than red .

 

[ali123456789]

yea ahmosh is correct I did the same and wht abt maths ahmoosh I think i lost 10-20 marks for sequences and some other tricky questions..

 

[DowntownCrew]

speed of violet decreased more than red .

I did the same ... I don't know from where I get the one for spring , one mark gone from me xD
Take a look at 2005 summer paper , question 34 , same as the one we had today ??
I guess I will take 33-35 marks for this paper.

 

[Ahmooosh]

minimum loss 15 marks , without the tricky bits.... i found it a hard one tbh , like first page sucked for me!

25^ 1/2 = ?

in my cal it gives me 12.5 , when i do it mentally i get 5.... then that answer x by second part gives u the final answer... that was second question....

 

[DowntownCrew]

And by the way what was your first question guys ???

 

[DowntownCrew]

minimum loss 15 marks , without the tricky bits.... i found it a hard one tbh , like first page sucked for me!

25^ 1/2 = ?

in my cal it gives me 12.5 , when i do it mentally i get 5.... then that answer x by second part gives u the final answer... that was second question....

Oh , that doesn't look well .. I hope u ll do fine in next two papers ... first page :O ... I remember first page was easy

 

[Ahmooosh]

first question to physics? if yes , its 19 mm

 

[DowntownCrew]

first question to physics? if yes , its 19 mm

I don't know actually , my friend is asking me whole time about some leaf and rule , we probably had different questions/variants , or maybe I just can't remember it He is asking is the answer 29 and was the rule on 0 or on 1 ?? I don't remember there was any rule and leaf in my paper lol

 

[ali123456789]

what grade will I get while losing 20 marks in ppr4 and 10 in ppr2?? any guess?