IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: Ghost Of Highbury on June 03, 2009, 09:04:28 pm

Title: physics last minute notes
Post by: Ghost Of Highbury on June 03, 2009, 09:04:28 pm
hello all
i know its a little late for the notes
but i just got hold of them

visit this link
http://cid-a1aae58af356b211.skydrive.live.com/browse.aspx/physics%20notes?uc=5&nl=1
download them

hope i helped
thank u
 :)
virus free
Title: Re: physics last minute notes
Post by: Ghost Of Highbury on June 03, 2009, 09:06:09 pm
plzz tell me
if they helped
thank u
Title: Re: physics last minute notes
Post by: Priceless on June 03, 2009, 09:21:33 pm
lol adi...ders no doubt abt it.... anythng given by u is alwayz helpful just like u...as others correctly said....ur a genius....thnkz 4 da help!
+rep 2 u....Take care  ;) :D
Title: Re: physics last minute notes
Post by: Aodian on June 03, 2009, 09:23:42 pm
THANK YOU SOOOO MUCH!!!
Title: Re: physics last minute notes
Post by: Ghost Of Highbury on June 04, 2009, 09:32:00 am
welcome..
Title: Re: physics last minute notes
Post by: idk on June 04, 2009, 10:45:45 am
hey i had a question that if there is a liquid in a container which exerts 15000Pa pressure and then it is put in a container with double the base area,then will the pressure change?thx.
Title: Re: physics last minute notes
Post by: Ghost Of Highbury on June 04, 2009, 10:48:03 am
liquid pressure depends on the height of the container, the density of the liquid and the gravitational force

here the liquid hasen't changed.
but if the height of the new container is the same
i don't think the pressure exerted will change
 :)
Title: Re: physics last minute notes
Post by: dxbmed on June 04, 2009, 10:50:43 am
Quote from: idk on June 04, 2009, 10:45:45 am
hey i had a question that if there is a liquid in a container which exerts 15000Pa pressure and then it is put in a container with double the base area,then will the pressure change?thx.

Don't confuse P=Dgh with P = F/A. I made that mistake in the exam today. >_>
Title: Re: physics last minute notes
Post by: Ghost Of Highbury on June 04, 2009, 10:51:55 am
thats right

p = density of liquid * height of the container * acceleration due to gravity i.e 9.8 m/s2
Title: Re: physics last minute notes
Post by: idk on June 04, 2009, 10:52:17 am
but since the same mass of liquid has been put and the density shouldnt really have changed soshouldnt the volume be the same.if the volume is same,with higher base area,the height will decrease rite?this came today.
Title: Re: physics last minute notes
Post by: Ghost Of Highbury on June 04, 2009, 10:54:48 am
do not discuss any answers plz..

everything after 24 hours..
thank u
 :)