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Author Topic: Biology paper 6 :P  (Read 2539 times)

Offline AS girl

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Biology paper 6 :P
« on: April 27, 2009, 07:46:17 am »
Hey
I have a problem in paper6 bio regrading measurements.
I'll be more specific It's paper6-Oct/Nov 2004 question1
I dont know how to do this question cuz i tried all the ways and i get a different answer than that in the marking scheme.(It's not even within the specified range  ;D)
I would like to know how do we measure the length (from which point to which point)...
Thanks in advance  :P
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Offline twilight

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Re: Biology paper 6 :P
« Reply #1 on: April 27, 2009, 09:52:04 am »
how to measure the length of what? i cant see any thing mentioned about measuring lengths in the question  :)
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Offline AS girl

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Re: Biology paper 6 :P
« Reply #2 on: April 27, 2009, 10:13:25 am »
Hey twilight
Sorry i downloaded the wrong paper..this is the link for the question paper
http://www.freeexampapers.us/IGCSE/Biology/CIE/2004%20Nov/0610_w04_qp_6.pdf
My question is how to measure the actual length of the worm (question 1)
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Offline sanity_master

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Re: Biology paper 6 :P
« Reply #3 on: April 27, 2009, 11:57:17 am »
lucky u....i solved it yesterday....well the way to do it is to measure the length of the worm at each part where the line is almost straight.....i mean at each curve in the body starts a new line.....i did it and the answer for

*worm A =~ 1.03 mm (that was mine)
*mag was=~ X196.5 (that was according to my measurements)  ;D

i hope u got wt i meant up there :)
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Offline emi

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Re: Biology paper 6 :P
« Reply #4 on: April 27, 2009, 03:53:09 pm »
oh boi,, thats the exact Questions i posted ,, but NO ONE ANSWERED ME  ..

sanity master ,, about the way u did it .. there is a part which is very curved , and if we will measure from up it will be different and from down different ..

and wats the 0.1mm and 2.0 cm thing for ?? one the diagrams  ?

and how we do part i) and ii) ???

please some one answer
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Offline twilight

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Re: Biology paper 6 :P
« Reply #5 on: April 28, 2009, 12:14:51 am »
u got to measure it from the centre.. not up or down .. try from the centre

sorry I can't answer all ur questions because i'm in from my mobile phone now
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Offline twilight

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Re: Biology paper 6 :P
« Reply #6 on: April 28, 2009, 12:46:50 am »
lol yeah i'm starving for sleep .. but I gotta stay awake bcoz I got lOads to finish ..

over here its 2:40 am .. I'm going after a while ..i'm almost over ..
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Offline sanity_master

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Re: Biology paper 6 :P
« Reply #7 on: April 28, 2009, 07:55:14 am »
well emi.......after all its just an approximate,,,,,have u seen the range of error (its freaky) cuz of the problems and the different ways of measuring......in that curve i just tried to split it into different parts (no need to be straight) and i got and answer within the range :D

the 0.1mm and the 2cm part......they are scales and there are many ways to use them
wt i did was measuring the 0.1mm with my ruler and it was 1.5 cm......then i did the cross multiplication method and it worked

0.1mm -> 1.5cm
X      -> 15.5cm(the total length  of the worm)

the answer was 1.033 (within the range).......ohhh By the way,, the range i mentioned above is the range of the final answer of the (hw many times larger)

and to do part (ii)....measure worm B and convert it to !!(mm)!! and then
WORM B  == X (range 160 to 200)
WORM A

^^^^see :D
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Offline AS girl

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Re: Biology paper 6 :P
« Reply #8 on: April 28, 2009, 09:27:03 am »
Quote from: sanity_master on April 28, 2009, 07:55:14 am
well emi.......after all its just an approximate,,,,,have u seen the range of error (its freaky) cuz of the problems and the different ways of measuring......in that curve i just tried to split it into different parts (no need to be straight) and i got and answer within the range :D

the 0.1mm and the 2cm part......they are scales and there are many ways to use them
wt i did was measuring the 0.1mm with my ruler and it was 1.5 cm......then i did the cross multiplication method and it worked

0.1mm -> 1.5cm
X      -> 15.5cm(the total length  of the worm)

the answer was 1.033 (within the range).......ohhh By the way,, the range i mentioned above is the range of the final answer of the (hw many times larger)

and to do part (ii)....measure worm B and convert it to !!(mm)!! and then
WORM B  == X (range 160 to 200)
WORM A

^^^^see :D


Thanks for explaining the question..I appreciate it sanity_master ;)
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Offline emi

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Re: Biology paper 6 :P
« Reply #9 on: April 28, 2009, 09:01:58 pm »
thanks <3
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Offline sanity_master

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Re: Biology paper 6 :P
« Reply #10 on: April 29, 2009, 10:27:46 am »
glad i could help :)

ur welcome <3  ;)

any Qs i will be here for ya guys :) ;D
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