IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: nid404 on May 10, 2009, 03:45:14 pm
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Can some1 pls help me wid question 2 in nov 2005 and Please draw the circuits cause I don't understand the connections.
Thanx
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please help. i have my paper day after tom.
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it's urgent guys. astar r u there???? need help
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Which paper is it for?
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It's paper 6. sorry i forgot to mention it
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wait do u have to draw circuit 1 or 2 ??
i think its circuit 2 ... so basically AB is one resistor and BC is one resistor ... these are connected in series
then CD is a resistor in parrallel ...
then a voltage also connected in parrallel ... then connect all of that to an ammeter and continue the circuit ....
hope u understand .. if u dont ill try putting up a pic.
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Amber it would be gd if u put a pic!!
Your explanations i guess will confuse him!
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i don't understand it and anyways we need to complete circuit 3. But thanx for ur help
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Amber it would be gd if u put a pic!!
Your explanations i guess will confuse him!
Its her
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hey.
i have a question here.
physics-oct/nov 2008 paper 3 question 5c)
its about u have to calculate the value of the spcfc latent heat of fusion of ice.
i knew the how to do this,generally.but,what is the significnce of the 2.1 g of ice melted during the extra 2mins?why do we hve to subtract them from 16.3g?
Thanks.
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yup cuz that amount of ice melts due to heat taken from the surroundings.
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ny ... to ur question .. bascially 16.3 is the mass we started with and 2.1 is wen the heater is switched off ...
latent heat is how much heat can they take ... so u subtract these two to find the mass that melted because of the heater ....
thats why we subtract the 2
and heres the pics :D
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Amber it would be gd if u put a pic!!
Your explanations i guess will confuse him!
Its her
Thiis is my 100 post :o ;D
your explanation i guess will confuse her. ;D
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ny ... to ur question .. bascially 16.3 is the mass we started with and 2.1 is wen the heater is switched off ...
latent heat is how much heat can they take ... so u subtract these two to find the mass that melted because of the heater ....
thats why we subtract the 2
thanks.
so,is 16.3g the original mass of the ice ?i thought that 16.3g is the mass of the ice melted after we heated them.
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it melted during the heater is on .. and the heater was switched off and 2.1g melted without the heater ...
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so,why cant we just use 16.3g? cant we just ignore the 2.1g?
i've tried many times to undrstand this.but still,i don't get it.
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I hav writen sum info abt phy ppr6 in 'SCIENCE HELP' topic... Its abt hw to improve aparatus.
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cumon it's not that difficult to understand. It's just that the amount of heat melted by the heater is not 16.3g, its 16.3-2.1g cuz the 2.1 g is melted by the heat taken from the surroundings and not the heater. R u gettin' it??
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I hav writen sum info abt phy ppr6 in 'SCIENCE HELP' topic... Its abt hw to improve aparatus.
nice info thanx
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cumon it's not that difficult to understand. It's just that the amount of heat melted by the heater is not 16.3g, its 16.3-2.1g cuz the 2.1 g is melted by the heat taken from the surroundings and not the heater. R u gettin' it??
oh okay.i got it.thanks
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I have posted sum info abt circuits as well check out it at science ppr6 help...
P.S: i have upgraded my account and have changed my name frm 5428 to oblivion...
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thanks. ur info's really helpful
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No prob... Il post othr tips as well but latr on...
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another question that's pestering me. Oct/nov 2007 Q1)c
attached the paper and mark scheme(which is of no help)
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do u want oct/ nov. or may/june
cause babe u said o/n but u put up m/j paper
its fine ill answer both :D
MAY/JUNE 2007
Ci) heat loss
Cii) by lagging and by a lid
OCTOBER / NOVEMBER 2007
Ci) no
depends on the temperature of the atmosphere
Cii) volume of water
mass of beaker
amount of stirring
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a big list of doubts plzzzz help og
frstly can somone explain me hw 2 do d q 4bii) frm 2003 june n d q 4c frm jun 2005 n q 3b frm 2001 n plzzzzzzzzz 1 more in d 2008 may june d 5 bi) wht do mean by amplitude... d q abt list 2 variables tht shld be kept constant n 1 of them is amplitude .....wht do u mean by tht
n ya last q when does a line pass thrgh 0 when drawing ne graph........
plzzzzzzz help or else i m gone..........
thx in advance