IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: Naruto123 on March 24, 2010, 09:28:39 am
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what is linear expansion
hw to find circumference of a pencil using a thread
does widening the barometer change the pressure of liquid
Lastly in ppr 6 dey always have this triangle and tell to draw hw it will appear on the screen how do we knw wat size or if inverted or upright ???
answer dem asap thx
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what is linear expansion
hw to find circumference of a pencil using a thread
does widening the barometer change the pressure of liquid
Lastly in ppr 6 dey always have this triangle and tell to draw hw it will appear on the screen how do we knw wat size or if inverted or upright ???
answer dem asap thx
Linear Expansion - (The increase of a planar dimension, measured by the linear elongation of a sample in the form of a beam which is exposed to two given temperatures)
When length of a solid (rod) is much greater than its breadth and thickness, linear expansion or expansion in length is considered.
(http://image.tutorvista.com/content/heat/linear-expansion.gif)
Length of a rod
(http://image.tutorvista.com/content/heat/rod-linear-expansion.gif)
Length of a rod increases on heating
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About barometer.. I think since pressure is force per unit area, it doesn't matter how wide the tube is, as long as its diameter is constant.
pz
-MaNi
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WWind the thread 20 times anround the pencil, then measure the length of thread wound and divide it by 20
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thx a lot guyz bt wat abt da ppr 6 question ?
the triangle ???
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Can you say the paper? year/board etc
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hey guys i am in 8th igcse and want some proper practice for my physics papers plz as soon as possible.
it starts at 5th april plz guys HELP..!! :) :) :) ??? ??? ??? ???
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hey guys i am in 8th igcse and want some proper practice for my physics papers plz as soon as possible.
it starts at 5th april plz guys HELP..!! :) :) :) ??? ??? ??? ???
If you be more specfic and tell me which topic, that would be better, but anyway you look yourself in those links:
http://freeexampapers.com/Dndex.php?d=SUdDU0UvUGh5c2ljcy9DSUUvUmVzb3VyY2Vz Many resources and worksheets here.
http://thenightdreamer.wordpress.com/category/subjects/physics-education-archive/ also here
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hey thank you..!!! <3 <3 <3
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Anytime. :D :-*
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hey guys i am in 8th igcse and want some proper practice for my physics papers plz as soon as possible.
it starts at 5th april plz guys HELP..!! :) :) :) ??? ??? ??? ???
http://www.astarmathsandphysics.com/igcse_physics_notes_menu.html
http://s-cool.co.uk/gcse/physics.html
http://www.cbu.edu/~jholmes/P202/intro.html
http://www2.isb.ac.th/physics_isb/physisb/maindex.htm
http://www.webschool.org.uk/science/ks3new/index.html
http://jersey.uoregon.edu/vlab/
http://www.physicsclassroom.com/
Happy Learning ! ;D