Physics: Post your doubts here!

[Snow Angel]

can someone explain the following questions as soon as possible?

a) Question 2c in this paper, how should we find it and what do they expect?

 

[Snow Angel]

b) Help needed with Question 6b in this paper.

 

[Snow Angel]

c) help needed with question 5b in this paper.

please answer and explain the answer for these 3 questions as soon as possible with the correct answers. thank you

 

[Snow Angel]

question 2c in this paper
papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_32.pdf

 

[Snackbox86]

Using conservation of momentum, the velocity of the 1kg trolley would be
2*2 = 1* x
x = 4 m/s

now total kinetic energy of the two trolleys would be equal to the total energy released from the spring

1/2 * 2 * 4 + 1/2 * 1 * 16
= 12 J

For the 20th one, the strain energy would be the area under the graph...
By just taking a triangle, we get
1/2 * .002 * 100 = .1
However, we will also consider the upwards bend of the curve.. Therefore, the answer has to be more than .1... Now, it can't be D because D is too large. D would actually equal to the area of the whole square if we don't multiply our number with 1/2... Therefore, it has to be C.

Thank you

 

[Suchal Riaz]

question 2c in this paper
papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_32.pdf

Calculate the uncertainty of both values of e. Lets say e was 1.5 plus/minus 0.2 and second e is 1.4 then second e is in range of accuracy. So e is constant.

 

[Suchal Riaz]

b) Help needed with Question 6b in this paper.

Sorry for my poor hand writing

 

[boredome]

paper 4 june 2005 Q7 c) why did we use 1/10 not 1/9 ? I can't understand why it was solved that way in the marking scheme

 

[abdul moeed rana]

NEED PHYSICS 9702 AS LEVEL SPECIMEN PAPERS OF YR 2014,MCQS N THEORY BOTH.COMPONENT PAPERS AS WELL.HELP HELP!!

 

[Snow Angel]

View attachment 37328

Sorry for my poor hand writing

thank you very much

 

[Snow Angel]

View attachment 37328

Sorry for my poor hand writing

can u please explain question 6 b in as level may june 2008 paper 2? thank you

 

[Phoenix Blood]

Is it like if we write really long, long answers with squished up handwriting examiners won't consider it?

 

[ahmed abdulla]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_4.pdf
11b(iii)

 

[Faaiz Haque]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s04_qp_1.pdf

MCQ - Question 11 , 17 Please

With explanation

Thanks

 

[black killer]

Hope this help for mayjune 2009 q11 part biii

 

[Faaiz Haque]

Is it like if we write really long, long answers with squished up handwriting examiners won't consider it?

If it's absolutely unreadable then, yes they won't. But if it's messy but readable they'll still read it, but you always wanna make your presentation nice for the examiners to have a better mood

 

[abdul moeed rana]

guys need specimen paper of yaer 14 ,both mcqs n theory including component paers,so plzzzzzzzzz help n cooperate.plzz help.SPECIMEN PAPER OF YR 2014

 

[biscuitbiscuit]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w09_qp_22.pdf ' Q6(d)(ii)'
http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w04_qp_2.pdf 'Q6(a)(i)'

Help required in these two please

 

[Phoenix Blood]

0625_w13_qp_31
https://www.xtremepapers.com/commun...2013-papers-with-marking-schemes.31471/page-3
Hey, help with Q9,(c) Please

 

[syed1995]

NEED PHYSICS 9702 AS LEVEL SPECIMEN PAPERS OF YR 2014,MCQS N THEORY BOTH.COMPONENT PAPERS AS WELL.HELP HELP!!

Specimen papers are only released when there is a major change in syllabus or a change in paper pattern.. there was none hence there are no specimen papers available for 2014... the last major changes which happened to the Physics syllabus was in 2007 i think. So you won't find any specimen papers.