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Physics: Post your doubts here!

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Hi everyone, assalamoalaikum!! :)

To get things organized in a better way, I am making this thread. As othewise, some queries remain unanswered!

So post your PHYSICS doubts in this thread. InshaAllah other people here will help me and you all. :D ;)

NOTE: If any doubts in the pastpapers, please post the link! You can find links here!

Any Physics related notes and links will be added here in this post. Feel free to provide the links to your notes around the forum, or any other websites! :)
Thanks!
Jazak Allah Khair!

Physics Notes:

Some links & Notes - by 'destined007'

Physics Practical Tips - by arlery

Notes for A2 Direct Sensing (Applications) - shared by sweetiepie

Physics Summarised Notes (Click to download)

AS and A-Level Physics Definitions

A2: Physics Revision notes - by smzimran

Paper:5 Finding uncerainty in log - by XPFMember

Physics Paper 5 tips - by arlery

Physics Compiled Pastpapers:
DO YOU HAVE THE ANSWERS FOR THE PHYSICS COMPILED PAPER 1
 
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i dont understand how to resolve vectors at all, can anyone plz help me
exactly they r so hard....cant do even book exercises... :(
Here:
http://www.mediafire.com/view/?bsx42t4vbytyvpb


S08 qs 2biii why didnt we use 0.49=0.5mv2 - 0.5mv2 to calculate the speed of v and then multiply by 3:
www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s08_qp_2.pdf

and also qs 4b) how do we do it?
The file you attached is not opening! Attach the correct file!

Albert Einstein Please help me for June 2009 P21 No. 7 (b) & for P22 no. 7 :(
Attach the question paper! It makes it quicker and easier to solve!
 
Messages
67
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Hi everyone, assalamoalaikum!! :)

To get things organized in a better way, I am making this thread. As othewise, some queries remain unanswered!

So post your PHYSICS doubts in this thread. InshaAllah other people here will help me and you all. :D ;)

NOTE: If any doubts in the pastpapers, please post the link! You can find links here!

Any Physics related notes and links will be added here in this post. Feel free to provide the links to your notes around the forum, or any other websites! :)
Thanks!
Jazak Allah Khair!

Physics Notes:

Some links & Notes - by 'destined007'

Physics Practical Tips - by arlery

Notes for A2 Direct Sensing (Applications) - shared by sweetiepie

Physics Summarised Notes (Click to download)

AS and A-Level Physics Definitions

A2: Physics Revision notes - by smzimran

Paper:5 Finding uncerainty in log - by XPFMember

Physics Paper 5 tips - by arlery

Physics Compiled Pastpapers:
DO U HAVE ANSWER for physics paper 1????????
 

XPFMember

XPRS Moderator
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No idea...
search up those questions in the pastpapers
and refer markschemes
 
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answer is A can anyone explain how
Well its a velocity-time graph and a sine curve. To get displacement from velocity, u have to do the integration of velocity which implies the integration of sine here. Integration of sine gives negative cosine. Therefore the answer will be an inverted cosine curve. Therefore A. Hope it helps.
 
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Well its a velocity-time graph and a sine curve. To get displacement from velocity, u have to do the integration of velocity which implies the integration of sine here. Integration of sine gives negative cosine. Therefore the answer will be an inverted cosine curve. Therefore A. Hope it helps.
one thing what has sine to do with velocity and cos with displacement?? are they related
 
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one thing what has sine to do with velocity and cos with displacement?? are they related
Well not really... but there are many cases in the chapter wave where the velocity of a particle moves sinusoidal (related to the sine curve).
 
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Hi everyone :)
Can anyone tell me the differences between STRONG , STIFF , RIGID and TOUGH according to young's modulus ??
 
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Hi everyone :)
Can anyone tell me the differences between STRONG , STIFF , RIGID and TOUGH according to young's modulus ??

Found this in a book.
Strong: Withstand large stress before fracture, large ultimate tensile strength
Stiff: Large stress to produce small strain
Tough: Undergo significant plastic deformation. Require large amount of energy per unit volume to break

Can't find rigid though. Hope you can understand....:)
 
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hi:)
i also did this question but got stuck on this: didnt they ask for the resistance in terms of R, then y do we write 'infinity' which is not in terms of R?? o_O
 
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