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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 228407 times)

Offline xMilishax

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #720 on: May 10, 2010, 07:43:03 pm »
Quote from: Shazizzzle on May 10, 2010, 06:28:45 pm
Umm, in May/June 2001, Q4, part (b),
What is the main question? :S
Why the glass stopper was heated?
Why it was heated for a long time?
Or, why was it heated in boiling WATER?

Also, the same question, part (e), is the answer:
This is because it has a greater size and thus greater mass comparatively, and thus has a higher thermal capacity and so will gain more internal energy, and transfer more of it to the water as compared to the smaller one.

That is the answer I wrote. Kindly correct! :)

The answer I wrote to part b) is - To make sure that the glass stopper reaches about 100 degree celcius.
And you are absolutely correct with your part e) answer! Heat capacity of the larger glass stopper is more so greater heat energy is transferred. :)

Thanks for all your hard work.  ;D
Good luck!

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Offline xMilishax

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #721 on: May 10, 2010, 07:44:33 pm »
Quote from: MasterMath on May 10, 2010, 07:42:17 pm
I have one question.. you guys know for the questions where they tell you the cylinder placed on the rule covers the mark..
should you draw the rule and the cylinder and mark the center of the cylinder AND THEN DRAW ANOTHER Rule under it to measure the distance or the diagram without extra ruler is enough?

This has already been done. Please check previous posts! :)
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Offline diva_sparkles

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #722 on: May 10, 2010, 08:05:53 pm »
Quote from: Shazizzzle on May 10, 2010, 06:28:45 pm
Umm, in May/June 2001, Q4, part (b),
What is the main question? :S
Why the glass stopper was heated?
Why it was heated for a long time?
Or, why was it heated in boiling WATER?

I mean, where does the emphasis lie?

If they meant long time, then obviously so that evenly and completely, the glass stopper fully reaches 100 deg. C, i.e as it has a hight sp. ht. capacity and may take longer.
If, why specifically in boiling WATER and not directly, well because, the glass would crack on direct contact with the heater.
What exactly is the ans? MS, anyone?

Also, the same question, part (e), is the answer:
This is because it has a greater size and thus greater mass comparatively, and thus has a higher thermal capacity and so will gain more internal energy, and transfer more of it to the water as compared to the smaller one.

That is the answer I wrote. Kindly correct! :)
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Offline PeaceMaker

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #723 on: May 10, 2010, 08:07:31 pm »
I got just one question how do you actually calculate the gradient of the graph? Damn, i kinda forgot. =S
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Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #724 on: May 10, 2010, 08:08:23 pm »
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Offline DCS guy

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #725 on: May 10, 2010, 08:32:57 pm »
p6/MJ/2004
Q4 b

what should i draw after the triangle?
can someone show me.... ;D
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Offline Malak

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #726 on: May 10, 2010, 08:34:09 pm »
Quote from: DCS guy on May 10, 2010, 08:32:57 pm
p6/MJ/2004
Q4 b

what should i draw after the triangle?
can someone show me.... ;D
Thats the only thing ur supposed to draw..
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Offline DCS guy

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #727 on: May 10, 2010, 08:37:09 pm »
Quote from: ang3l on May 10, 2010, 08:34:09 pm
Thats the only thing ur supposed to draw..

oh! ok!
thx
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Offline Malak

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #728 on: May 10, 2010, 08:37:44 pm »
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Offline helpmekthanks

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #729 on: May 10, 2010, 08:43:22 pm »
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Offline Malak

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #730 on: May 10, 2010, 08:53:59 pm »
« Last Edit: May 10, 2010, 09:09:15 pm by ang3l »
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Offline DCS guy

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #731 on: May 10, 2010, 09:18:04 pm »
p6/ MJ /2004
Q4 (a)

where do i draw the pins?
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Offline DCS guy

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #732 on: May 10, 2010, 09:18:44 pm »
srry
ON 2004
 :o
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Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #733 on: May 10, 2010, 09:19:00 pm »
Right, I'm off people.
Laters! :)
Take care! AH!
And
BEST OF LUCK FOR TOMORROW! :)
be confident. InshAllah, it'll be easy! (=
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Offline DCS guy

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #734 on: May 10, 2010, 09:19:38 pm »
Quote from: Shazizzzle on May 10, 2010, 09:19:00 pm
Right, I'm off people.
Laters! :)
Take care! AH!
And
BEST OF LUCK FOR TOMORROW! :)
be confident. InshAllah, it'll be easy! (=
GOOD LUCK!!!
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