As physics p1 MCQS YEARLY ONLY.

[Santiago Carthorla]

Can anyone explain to me Q15,17,18,23,29 and 37! Will be much grateful and thank you in advance! http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf I posted this on the other place but no one replied and thank you all so much this means alot to me im pretty weak in physics paper1

 

[Catherine7532]

Hanona, what concept/formula did u use to find the mass???

 

[Hanona]

Hanona, what concept/formula did u use to find the mass???

which question? :O I forgot

 

[Hanona]

Hanona, what concept/formula did u use to find the mass???

actually I figured it out using the SI units.. density x area x speed = kgm^-3 x m^2 x ms^-1 = the m's cancel giving kg/s ...

 

[Hadi Murtaza]

i did it that way and i got the answer and then I realised it said 22 m higher than the motor way so I got confused
D: doesnt that have anything to do with gravitational potential energy?:?
/

I think u meant dis method

(1/2)mu² = mgh + (1/2)mv²
(1/2)(28)² = (9.8)(22) + (1/2)v²
392 = 215.6 + (1/2)v²
(1/2)v² = 176.4
v² = 352.8
[ v = 18.8 ≈ 19 m/s ]

 

[Hanona]

I think u meant dis method

(1/2)mu² = mgh + (1/2)mv²
(1/2)(28)² = (9.8)(22) + (1/2)v²
392 = 215.6 + (1/2)v²
(1/2)v² = 176.4
v² = 352.8
[ v = 18.8 ≈ 19 m/s ]

YESSSSSSSSSSSSSS OH YES~! YAY IM happy thanks now i can sleep peacefully without thinking y

 

[Hadi Murtaza]

YESSSSSSSSSSSSSS OH YES~! YAY IM happy thanks now i can sleep peacefully without thinking y

any doubts ?

 

[Hanona]

any doubts ?

no im still solving

but someone have encountered doubts before my post please help him/her as i am very busy ;/

 

[Hanona]

Can anyone explain to me Q15,17,18,23,29 and 37! Will be much grateful and thank you in advance! http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf I posted this on the other place but no one replied and thank you all so much this means alot to me im pretty weak in physics paper1

Hadi
if you dont mind ^_^

 

[Hadi Murtaza]

Hadi
if you dont mind ^_^

dats alot of qs

 

[sweetym]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_1.pdf number 13, 15,21,25 and 35 Pls..http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w09_qp_12.pdf number 6,8,11,21,25,34

 

[browniebabe15]

um where's october/November 2009 p12 explained answers? I can't find them

 

[Asad Moosvi]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w10_qp_12.pdf

Question 27 please

 

[Catherine7532]

ovt/nov 09
6. displacement=area under velocity-time graph.
area of trapezium=.5(6+12)*2=18m

 

[Mustafa97]

They are only 6, so could anyone look at them for me :/

 

[Mustafa97]

They are only 6, so could anyone look at them for me :/

 

[Joe smith]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s05_qp_1.pdf
Q29 please??

 

[Catherine7532]

For 2nd order, d sin θ = 600 nm * 2, which is

d sin θ = 1200 nm

For 3rd order,

d sin θ = 3λ

Since d has to be the same and the angle is also the same, we can equate the 2 equations.

3λ = 1200 nm
λ = 400 nm.

 

[Joe smith]

For 2nd order, d sin θ = 600 nm * 2, which is

d sin θ = 1200 nm

For 3rd order,

d sin θ = 3λ

Since d has to be the same and the angle is also the same, we can equate the 2 equations.

3λ = 1200 nm
λ = 400 nm.

thanks!!
http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w05_qp_1.pdf q29 as well? please help

 

[Thought blocker]

thanks!!
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w05_qp_1.pdf q29 as well? please help

d*sin(tetha)=n*lamda
tetha will be 60/2 as it is suppose to be the angle made by the normal to the granting
1.15 * 10^-6 sin 30 = 1 * λ
λ = 575 nm