AS Physics P1 MCQs Preparation Thread.

[hope4thebest]

Anyone what actually is viscous force or viscosity?Saw some mcq's related to this

 

[LeoMessi]

Can someone please please explain how to do question 22, 34

 

[hope4thebest]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_1.pdf
Please help me with question 3.. I'll appreciate an explanation.

Thanks

As it is X-Y so we have to reverse Y,then apply the head to tail method and the result would be the diagram in B

 

[aisshh]

can anyone solve w_09_qp12_ mcq 14 and w_11_qp12_mcq26 pleasee?

 

[Ahmad Zaeem]

May /June 2012 P12 Qs no 13 30 and 31 plss ..need concept!!
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf

 

[Ahmad Zaeem]

May / June 2012 P11 qs 14 and 17
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_11.pdf

 

[Jasmine 12]

Can anyone tell j11/12 q7

 

[Aymen Ezazi]

i need help with q 18 plz
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w11_qp_11.pdf

 

[Rockstar RK]

Someone please pleaseee help me with qn no. 10 and 20 of the following paper:
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_1.pdf

Waiting for a reply..

Thanks!

For q. 10
I think that the option B is correct becz the point Z faces compression due the movement of point y downwards due to tension which x also faces tension.

 

[Your-Blood]

No ones helping each other just asking their own problems.

 

[Sara syed]

can some one explain winter 1o paper13 question2,31,17, aqnd why 13 is A not D

 

[Ahmad Zaeem]

Never mind got answers to my qs myself !!!

 

[Ahmad Zaeem]

No ones helping each other just asking their own problems.

dude most of them are new accounts ...lol

 

[samiaaaaaaaaaaaaahhh]

can someone please explain m/june 2012 v12 q5 ,q14, q17, q18, q22, q29, q30
please asao

 

[itallion stallion]

i need help with q 18 plz
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w11_qp_11.pdf

By conservation of energy:KE(P)+PE(P)=KE(Q)+PE(Q)+workdone
so 5+50-10=45Kj.hope u got it

 

[itallion stallion]

can some one explain winter 1o paper13 question2,31,17, aqnd why 13 is A not D

In q 17 simply use P=Fv.
In q 31:the resistance of each wire wll be 4 ohm.using V=IR calculate resistance for relay that comes 26.67.total resistance will become26.67+8=34.67ohm.multiply it with the current and u will get the voltage.
In Q 13 weight always acts downwards.
dont know q2.

 

[Aymen Ezazi]

By conservation of energy:KE(P)+PE(P)=KE(Q)+PE(Q)+workdone
so 5+50-10=45Kj.hope u got it

wat is (P) and (Q)

 

[mjeg18]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w08_qp_1.pdf q21 plz

 

[TaffsAsLevel]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w08_qp_1.pdf q21 plz

Okay so this problem is like parallel and series circuit. just imagine extension as resistors, and if you want overall k then find inverse of overall x. or otherwise the otherway if parallel then k would all add up for overall k. You do it yourself now and see if you got correct

 

[Obsidian Fl1ght]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w08_qp_1.pdf q21 plz

F = kx
First we'll set a comparable value of the extension.
That is, we'll find extension for ONE Load acting on ONE spring.
Let load be W, extension be e.
W = ke,
k = W/e
k is spring constant.

Now we'll find all extensions for the choices in terms of e.

A: Two springs: One load.
W divided equally so each spring takes W/2.
F = kx,
So: W/2 = W/e * x,
x = W/2 *e/W
x = 0.5 e

B: Same set-up as in A. Except the two-spring has another two-spring attached to it.
We'll double the extension. (In series u double ext.)
x = e

C: One single-spring attached to a double-spring set-up.
Single spring will take the whole of load W.
Initially, if u refer to the starting of this reply, u'll see the extension is: e, for a load of W. (That is when the spring takes the whole of the load!)
So for single-spring: ext. is e.
For double-spring set-up, well - just look at A.
x was 0.5 e...
Total ext. for C is: e + 0.5e = 1.5e

D: Single-spring, again, will have ext. e. (Like I said above.)
Triple spring. Each spring takes W/3 load.
F = kx.
W/3 = W/e * x,
x = W/3 * e/W,
x = e/3.

Total ext. for D: e/3 + e = 4e/3 or 1.33e

Compare 'em all.

C has gr8est ext. C's ur answer.

Hope I was of assistance!