✔--Physics P2: Post your doubts here --✔

[emkay]

uhm, okay so i have done the past papers from 2001 to 2010 once and doing it again, and have revised the syllabus twice as well.
the problem is i haven't done the papers of 2011-2012. would that cost me? and have i done enough?
and yeah, i am scared :R

 

[bamteck]

uhm, okay so i have done the past papers from 2001 to 2010 once and doing it again, and have revised the syllabus twice as well.
the problem is i haven't done the papers of 2011-2012. would that cost me? and have i done enough?
and yeah, i am scared :R

You mean if we work all the past papers, we can get can an A* ?

 

[emkay]

You mean if we work all the past papers, we can get can an A* ?

i don't thinkso, see what i have observed so far is that its not the past papers or revising the syllabus that is going to get us to that level but how we manage to solve the problems with elaborating and managing the knowledge that we have. in that case, we need to get into the depth of our course as much as we can. Understand, draw a picture of it in your mind. Apply the formula's with different questions. Apply the laws in whatever you see, hear, or do. it's like falling in love with it. okay i should stop now, its been getting all over me -_-

 

[bamteck]

i don't thinkso, see what i have observed so far is that its not the past papers or revising the syllabus that is going to get us to that level but how we manage to solve the problems with elaborating and managing the knowledge that we have. in that case, we need to get into the depth of our course as much as we can. Understand, draw a picture of it in your mind. Apply the formula's with different questions. Apply the laws in whatever you see, hear, or do. it's like falling in love with it. okay i should stop now, its been getting all over me -_-

LOL ! Oki.. An A or B then !

 

[emkay]

LOL ! Oki.. An A or B then !

Insha'Allah, so how much have you covered?

 

[bamteck]

Insha'Allah, so how much have you covered?

Ameen
For P2, I have covered till 2009 so far !

 

[aniroula]

Do at least till 10,,

 

[creative22]

Can Someone please help me with this question
This might sound easy but I can not getting it
thanks

Link: http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s11_qp_21.pdf

Question.5 (b) part

and the variable resistor ranges from 0 - 12 V

 

[creative22]

And guys please tell me that up to how many significant figures do we have to give our final answers ?

 

[Kirabo Takirambudde]

And guys please tell me that up to how many significant figures do we have to give our final answers ?

Yes can sum1 please tell us cause i swear that u can never tell using the past papers

 

[deepum]

help guys....june 02 p2..number 3 b iii..

 

[crisislord]

The number of s.f I think depends on how accurate the values you are given to work with is.
E.g
Lets say you need to multiply 23.686 and 2.12; so the answer is 50.21432
However this answer is wrong because you can not obtain a value that is more accurate than the values you have been given to work with.
So 2.12 being the least accurate the accuracy of the answer is given in that range, i.e 50.2.
Well it kind of make sense to me but if you have other suggestion that would be great.

 

[Mr Me]

How is your preparation going on guys ?

 

[Varuna0911]

how Do I draw a vector triangle for nov p23 11 Q1(D)?

 

[XD boy]

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s11_qp_23.pdf
Q5b 1 guys.

 

[Goku]

http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_s04_qp_2.pdf
^Question 8 please!!

http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_w04_qp_2.pdf

^ Q 4 a(i)
Q5 c(i) and c(ii) + d(i) (ii)

Can someone please please please please help me? I am freaking out here!! :'(

 

[TheCookieMonster]

Please help!
I'm having some trouble with Oct/Nov Variant 2, here's the link:

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w10_qp_22.pdf

1) Question 4b.i , is the shaded area just between the two curves or shaded beneath the top curve all the way down to the extension axis (x-axis) ?

2) Question 4b.ii , How do you do it?

3) Question 6bi , How do you get the answer? It says (4/5) multiplied by 1200. Where did that 4/5 (0.8) come from, and what's the 12000? The answer is 960 ohms.

4) Question 6b.ii , How do you do this?

My exam is tomorrow morning please help!

 

[alcoholic 111]

And guys please tell me that up to how many significant figures do we have to give our final answers ?

Yes!! it depends in the number of significant figures of the data in the question!
crisislord has explained it pretty well

 

[alcoholic 111]

Please help!
I'm having some trouble with Oct/Nov Variant 2, here's the link:

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_22.pdf

1) Question 4b.i , is the shaded area just between the two curves or shaded beneath the top curve all the way down to the extension axis (x-axis) ?

2) Question 4b.ii , How do you do it?

3) Question 6bi , How do you get the answer? It says (4/5) multiplied by 1200. Where did that 4/5 (0.8) come from, and what's the 12000? The answer is 960 ohms.

4) Question 6b.ii , How do you do this?

My exam is tomorrow morning please help!

1)Yes !! the area between the two curves
2)Area of upper curve - Area of lower curve
3)4 v is across point A and B which means the rest of 5 V is in the 1200 ohm resister
so we would fine current from there V=IR
5 = I (1200)
I=4.17 x 10^-3

Now V=IR
4 = 4.17 x 10^-6 (R)
R= 960 ohms

4)960 is total resistance so
1/960 = 1/R(thermistor) + 1/1600

by solving
R(thermistor)=2400 ohms

see from the graph the temp. for which the resistance of thermistor is 2400 ohms
it's 11 degree Celsius

 

[Mr Me]

Can any one please help me by drawing two waves in the same graph that have a phase difference of 180 degrees. Please help me I have my Paper 2exam today.