AS Physics P1 MCQs Preparation Thread.

[CaptainDanger]

View attachment 13046 it is a square with pythogrean triples 30,40,50 how can't it be 45??

at first i got 53.1 but the answer kept coming out wrong :S

Diagram in question is not to scale.

 

[XPFMember]

Aoa!

CaptainDanger Nibz
jazakAllah khairen

 

[arlery]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_12.pdf
Q 14 too plz ans is D

First get the diagonal distance of hill by using sin 30 = 1.5/h
h = 1.5/sin 30 = 3m
So the work done by driving force is fsin theta *d = 200 sin 30 * 3 = 300 N
Work done against frictional force = 150 * 3 = 450 N
So 300 + 450 = 750 N

 

[bloody_mary]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_12.pdf
Q 14 too plz ans is D

use the equation
WD= PE + KE + WD[by friction]

PE=mgh (the weight of the box is 200N so no need to find mg)
so 200*1.5=300J

KE= question says steady speed so no change in KE so KE is 0

WD by friction: 150 * 1.5/sin30 (to find horzontal distance moved bybox) =450J

so 300+450=750J

 

[bloody_mary]

Diagram in question is not to scale.

i didn't scale it i redrew it -_-

 

[arlery]

http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s10_qp_13.pdf
Q 35 why's the answer A? :S

 

[pearl angel]

Q8
answer is A because speed increases uniformly so constant acceleration

Q6 + 5

when adding or subtracting 2 quantities add absolute error
when mulitplying or dividing add percentage error
when a quantity is to the power of something multiply power to percentage error

thank you

 

[bloody_mary]

thank you

welcome

 

[MysteRyGiRl]

Aoa!

CaptainDanger Nibz
jazakAllah khairen

sory me dont know

use the equation
WD= PE + KE + WD[by friction]

PE=mgh (the weight of the box is 200N so no need to find mg)
so 200*1.5=300J

KE= question says steady speed so no change in KE so KE is 0

WD by friction: 150 * 1.5/sin30 (to find horzontal distance moved bybox) =450J

so 300+450=750J

First get the diagonal distance of hill by using sin 30 = 1.5/h
h = 1.5/sin 30 = 3m
So the work done by driving force is fsin theta *d = 200 sin 30 * 3 = 300 N
Work done against frictional force = 150 * 3 = 450 N
So 300 + 450 = 750 N

jazakaALLAH loadzzzz...going 4 da ppr best of luck 2 any1 whos giving their pprs plzz pray 4 me

 

[omg]

ur nt donw wid the pp

sory me dont know


jazakaALLAH loadzzzz...going 4 da ppr best of luck 2 any1 whos giving their pprs plzz pray 4 me

ur nt done wid the yet??? 0.o

 

[CaptainDanger]

i didn't scale it i redrew it -_-

You can't assume angles in such cases to be 45 degree. Yes the lines are perpendicular to each other, it should be 45 degree. But use the given data to find it.

Aoa!

CaptainDanger Nibz
jazakAllah khairen

Walikum Salaam. Sorry. I couldn't solve it either. Nibz is not online, let me tag hamidali391. URGENT.

 

[OakMoon!]

You can't assume angles in such cases to be 45 degree. Yes the lines are perpendicular to each other, it should be 45 degree. But use the given data to find it.


Walikum Salaam. Sorry. I couldn't solve it either. Nibz is not online, let me tag hamidali391. URGENT.

The two waves are out of phase at t=18. So there is a 180 degrees phase difference between them which is 1/2 of the cycle. 1/8 of cycle means 360/8 or 180/4. So it will be at 18/4=4.5s. Why is it urgent now? Aren't you guys done with the exam? :S

 

[CaptainDanger]

^ I am done. He isn't probably.

 

[fathimaash]

Can someone pls help with this?View attachment 13023

ans is C

Capricedcapri abdullah ash bloody_mary

sry i wasnt dere...

 

[MysteRyGiRl]

ur nt donw wid the pp

ur nt done wid the yet??? 0.o

lol i just came back it was gud AH

 

[Soldier313]

sry i wasnt dere...

no p

 

[omg]

lol i just came back it was gud AH

oh great!
so u gave which variant? 12?

 

[Silent Hunter]

How was the exam people ?

 

[omg]

How was the exam people ?

mine went great!! wbu??

 

[Silent Hunter]

mine went great!! wbu??

mine went fine too Although did some careless mistakes i think