Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 230829 times)

Offline pglasg74

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1830 on: May 26, 2010, 11:43:33 am »
can someone answer http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Jun/0625_s08_qp_3.pdf


NUMBER 8 A THAAANKS AND PHYSICS PAPER 1 WAS AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAZING LOTSA TRICKS THO

Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1831 on: May 26, 2010, 11:45:03 am »
Quick question.

Is monochromatic light of ONE FREQUENCY or ONE WAVELENGTH ?

its the frequency of the light that determines the colour rather than wavelength because the wavelength changes in different mediums

Offline Dana

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1832 on: May 26, 2010, 11:49:18 am »
Believe me the two variants are different as hell this time. Well some of my esteemed fellows took the liberty to call all the way to Pakistan and find out about the other variant and they were utterly disappointed after doing their papers ;D. From Pakistan but was born in Riyadh :D..

Anyway, people about to go for the exam. Any final piece of advice??? Well I've got to say something. DON'T ever forget to use the toilet before an exam. I was later to find out the consequences during my English Paper 4... :D.
Hahahahahahahaaha xD okay! :P Good luck :P :D

Offline pglasg74

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1833 on: May 26, 2010, 11:56:58 am »
you guys can someone tell me the diff (in terms of brightness) between series connections and parallel? i kno its a stupid one but tyy :D

Offline pglasg74

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1834 on: May 26, 2010, 11:58:26 am »
Hahahahahahahaaha xD okay! :P Good luck :P :D


dana do u kno noor momani?

Offline Dana

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1835 on: May 26, 2010, 12:01:06 pm »
can someone answer http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Jun/0625_s08_qp_3.pdf


NUMBER 8 A THAAANKS AND PHYSICS PAPER 1 WAS AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAZING LOTSA TRICKS THO
Ahhh I hope ours is just as good! Congrats By the way :)
for a you draw them all in parallel and you put a switch near the battery. then 3 others on each line where the lamps are.
for b) P=IV so I= P/V so 100/200 is 0.5 A. I might be wrong though check and tell me
for b)ii)  I(current)= Q(charge in coulombs)/t(time in secs) 1 min=60 secs.
Q=I x t so 0.5A x 60 is 30C
for c)i) you add the total power of the first 3 lamps minus the total power of the second three lamps
ii) you take the value that you got for for the reduction in power (c)i)) over 360 secs (1x60x60)
Check the correct answer and tell me whether my answers are even remotely correct :P

Offline Dana

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1836 on: May 26, 2010, 12:01:53 pm »

dana do u kno noor momani?
noor momani no but i know reema and lynn momani. why?

Offline Dana

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1837 on: May 26, 2010, 12:03:34 pm »
you guys can someone tell me the diff (in terms of brightness) between series connections and parallel? i kno its a stupid one but tyy :D
in parallel all lamps glow at the same brightness, in series they share the brightness.

Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1838 on: May 26, 2010, 12:10:23 pm »
Ahhh I hope ours is just as good! Congrats By the way :)
for a you draw them all in parallel and you put a switch near the battery. then 3 others on each line where the lamps are.
for b) P=IV so I= P/V so 100/200 is 0.5 A. I might be wrong though check and tell me
for b)ii)  I(current)= Q(charge in coulombs)/t(time in secs) 1 min=60 secs.
Q=I x t so 0.5A x 60 is 30C
for c)i) you add the total power of the first 3 lamps minus the total power of the second three lamps
ii) you take the value that you got for for the reduction in power (c)i)) over 360 secs (1x60x60)
Check the correct answer and tell me whether my answers are even remotely correct :P
Dana, would you please post a diagram of the drawing for me.. i dnt quite get how we illustrate it ??
Know how to ask. There is nothing more difficult for some people, nor for others, easier.

Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1839 on: May 26, 2010, 12:13:43 pm »
I have issues with diagram questions so there goes another one..
M/J 03 7 c i) Paper 3
Know how to ask. There is nothing more difficult for some people, nor for others, easier.

Offline MasterMath

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1840 on: May 26, 2010, 12:23:46 pm »
Give me a sec ill do it for you 8T

Offline lmfao

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1841 on: May 26, 2010, 12:25:14 pm »
hey guys got a question.may june 03 p3 q6.please help fast

Offline MasterMath

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1842 on: May 26, 2010, 12:25:40 pm »
I have issues with diagram questions so there goes another one..
M/J 03 7 c i) Paper 3
I guess this is what you wanted , i didnt look at the question i just read dana's explanation
Correct me if im wrong

Offline lmfao

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1843 on: May 26, 2010, 12:28:07 pm »
m j 03 q6 please need help

Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1844 on: May 26, 2010, 12:31:34 pm »
hey guys got a question.may june 03 p3 q6.please help fast