AS Physics P1 MCQs Preparation Thread.

[abcde]

thanks alot abcde bt still i did not got the pressure part why u minus .9 frm 1 :S thts where i am stucking

The subtraction is to find the pressure exerted by the liquid column only because you need this piece of information to figure out the height of liquid in the straw.

 

[Silent Hunter]

http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_w06_qp_1.pdf

Q31

 

[abcde]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w06_qp_1.pdf

Q31

Current = charge/time
= 4Q/t
=4Q (1/t)
= 4Qf since f = 1/t.
Hence, A.

 

[Knight]

Help plz.......

 

[kinglynx]

sure. in the last one about wire.................you knoe that resistence is directly proportional to length and inversely proportional to CSA, hence, since the lenth is same, but you have N number of wires, each has area of AREA/N..hence resistance of individual wores increases, but since there are N wires in paralel when we apply 1/R1 1/R2 + 1/Rn ..............it sums up to be N/RN....the N cancels and take inverse, so resistence is R.....equal

thanks a lot man!!!

 

[kinglynx]

no one has solved these two yet, please can you help me with them!!!

 

[A.ELWY 7]

View attachment 11889

Help plz.......

may i know what year is this...i got A as an answer is that right??

 

[leosco1995]

http://www.xtremepapers.com/community/threads/as-physics-p1-mcqs-yearly-only.17330/

Should we start from 2011 backwards, on 2002 onwards?

 

[TheMan123]

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w10_qp_11.pdf
Can someone explain why question 24 is C?

 

[Peter Check]

oooohhh u just couldn't imagine how was this question a torture for me...but i finally solved it, see:
first when resolving forces...the forces acting down the inclined plane is mg sin(theta)...to get this theta..u will use the opp/hyp=sin(theta), so sin^-1(3/7)=25.4 is the angle needed...then we have the mass which is 2kg x 9.81 sin(25.4)=8.4N...this is the f0rce down the plane...the resultant force is the 8.4 - the friction force which is 5 = 3.4...then u need to get the acceleration using F=ma...so 3.4/2 = 1.7 ms^-2..and finally using the equation v^2=u^2+2as...so 2 x 1.7 x 7=23.8...v^2=23.8 and so V=4.87 and so the answer is A

Lol you wouldn't believe I did the exact same thing, but evidently made a mistake getting the 8.4N. Anyways now I did it and got it. Thank you so muuch!

 

[Peter Check]

i did the same...
2*a*s=v^2-u^2
i got 4.8785 (A) is that correct?
u must hav made some silly mistake...did u get the resultant force 3.4ms^-2?? And acceleration 1.7?

yeah now i did, thnx, and I think its correct, it has to be

 

[fatima 007]

Should we start from 2011 backwards, on 2002 onwards?

2002 onwards till november2011.

 

[fatima 007]

Help needed :
J03 q17,22,28,30
Nov02 q7,10,18,24,32,36
Nov03 q4,5,7,22,28,31

 

[Parfals]

upload the paper

http://www.freeexampapers.com/get_p...+Level/Physics/CIE/2002+Jun/9702_s02_qp_1.pdf

 

[A.ELWY 7]

Help needed :
J03 q17,22,28,30
Nov02 q7,10,18,24,32,36
Nov03 q4,5,7,22,28,31

if u could post the link to the paper ill be grateful !!

 

[kinglynx]

can someone please help me?

 

[Henry930821]

Hey guys. For O/N/05 question number 34, why is the answer C not B? Since B has the highest gradient in which reciprocal of the gradient represents resistance? Thx in advance

 

[freakybandi]

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w11_qp_12.pdf
qs 11 plz!!

 

[Oliveme]

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s11_qp_12.pdf
Questions 7, 8, 16, 17 and 31. please explain these to me. thank you.

 

[master_11]

Can someone explain me June 2008 Q.24 I am getting answer 2E.??

Thank you