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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 229199 times)

Offline Moonlyte

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1185 on: May 25, 2010, 02:29:39 pm »
Quote from: ang3l on May 25, 2010, 02:23:44 pm
Can anyone exaplain me the relation between volume and pressure...Why when the volume decreases the pressure increases?

Specifically in this question:
Wouldnt the volume remain same  ???

Volume and pressure are inversely proportional under the same temperatures. So when one increases, the other decreases. When you push the piston in, the space decrease (i.e the volume decreases) and the same no. of molecules move randomly in a smalled volume so pressure increases.
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holtadit

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1186 on: May 25, 2010, 02:31:03 pm »
Quote from: ang3l on May 25, 2010, 02:23:44 pm
Can anyone exaplain me the relation between volume and pressure...Why when the volume decreases the pressure increases?

Specifically in this question:
Wouldnt the volume remain same  ???

Vin and Moonlyte already explained the necessary. BUT the volume WOULD change since the piston moves inwards. 
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1187 on: May 25, 2010, 02:31:12 pm »
Quote from: ang3l on May 25, 2010, 02:23:44 pm
Can anyone exaplain me the relation between volume and pressure...Why when the volume decreases the pressure increases?

Specifically in this question:
Wouldnt the volume remain same  ???

Volume decrease (becomes smaller) Pressure increase this is because it takes the particles less time to collide with the container wall.
Volume increase (becomes bigger) Pressure decrease this is because it takes the particles more time to collide with the container walls.

No the volume would decrease because he is pushing, so it slides make the volume less and hence increasing pressure!

Hope I helped :)
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Offline guMnam

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1188 on: May 25, 2010, 02:32:17 pm »
okay..now i m confused...wasnt the stroking thing for permanent magnet
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1189 on: May 25, 2010, 02:32:29 pm »
Quote from: Ari Ben Canaan on May 25, 2010, 02:31:03 pm
Vin and Moonlyte already explained the necessary. BUT the volume WOULD change since the piston moves inwards. 

i hav kinda modified
https://studentforums.biz/index.php/topic,6468.msg224107.html#msg224107
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Offline MasterMath

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1190 on: May 25, 2010, 02:32:56 pm »
Can anyone answer me =/ ?
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1191 on: May 25, 2010, 02:34:07 pm »
Quote from: misterioso on May 25, 2010, 02:21:43 pm

Yeah it is isnt it? Its got the sweetness of Vista but the speed of XP. Thanks for all the help, u even made the effort to edit the picture!!!


tht is wat i like !! :D

LOL, this is nothing .. i;ve done better stuff :P
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Offline Malak

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1192 on: May 25, 2010, 02:34:38 pm »
Thx everyone :D
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1193 on: May 25, 2010, 02:34:58 pm »
Quote from: guMnam on May 25, 2010, 02:32:17 pm
okay..now i m confused...wasnt the stroking thing for permanent magnet

Permanent magnets are materials which keep their magnetic properties after being induced. The stroking method is a way to induce a magnet whether it becomes a permanent or temporary!
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holtadit

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1194 on: May 25, 2010, 02:35:15 pm »
Quote from: MasterMath on May 25, 2010, 02:32:56 pm
Can anyone answer me =/ ?

Its up to you, honestly

Quote from: ~VIN1094~ on May 25, 2010, 02:32:29 pm
i hav kinda modified
https://studentforums.biz/index.php/topic,6468.msg224107.html#msg224107

Your theory is wrong. It is the CHANGE in VOLUME that causes a PRESSURE Increase.

You see he is pushing the PISTON INWARDS = Volume decrease. This causes a PRESSURE rise
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Offline MasterMath

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1195 on: May 25, 2010, 02:36:20 pm »
Starting from year are you guys solving from?
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1196 on: May 25, 2010, 02:36:30 pm »
Quote from: MasterMath on May 25, 2010, 02:25:53 pm
What should i revise for paper 1 ? ive solved like from 2009-->2003 .. my average marks are 38-40 .. do i need to do till 1996 or revise anything?

Thanks

Also solve 2000 to 2002 ;) .. read you book for specific topics which u lack or find difficult ;) and once read through ALL the chapters  ;)
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1197 on: May 25, 2010, 02:36:56 pm »
Quote from: MasterMath on May 25, 2010, 02:32:56 pm
Can anyone answer me =/ ?

Just revise some more notes (while relaxing) you've done enough pastpapers. I only did 6 till now, if only I didn't have History on the same day as Physics.
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1198 on: May 25, 2010, 02:37:50 pm »
Quote from: MasterMath on May 25, 2010, 02:36:20 pm
Starting from year are you guys solving from?

I went from oct/nov 2009 and worked backwards.
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1199 on: May 25, 2010, 02:41:12 pm »
Guys do we have to know Rutherford's nuclear model (I think it is the gold foil experiment thing)?
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