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Author Topic: IGCSE PHYSICS DOUBTS HERE !!!!  (Read 54449 times)

Offline NotAbod

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #165 on: April 30, 2011, 03:25:45 pm »
ataachements ;)
and By the way i am giving my igcse's this may ;)
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #166 on: April 30, 2011, 03:28:29 pm »
Quote from: AboD on April 30, 2011, 03:25:45 pm
ataachements ;)
and By the way i am giving my igcse's this may ;)
Thanks alot me too doing may
i did it as iudrew it so mine is right
Thanks again i confirmed my answer
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Offline NotAbod

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #167 on: April 30, 2011, 03:39:23 pm »
you're most welcome :)
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #168 on: April 30, 2011, 11:02:44 pm »
also this plz i got my measurements withinthe range but my average still 7.25 while mark sceme is 7.5
http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s10_qp_61.pdf
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Offline NotAbod

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #169 on: April 30, 2011, 11:15:21 pm »
experimental error, or just size of the paper, it is different if u photocopy or download and print, so no worries
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #170 on: May 02, 2011, 03:09:26 pm »
Quote from: AboD on April 30, 2011, 11:15:21 pm
experimental error, or just size of the paper, it is different if u photocopy or download and print, so no worries
Thanks :)
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #171 on: May 03, 2011, 03:14:21 pm »
oct/nov 2007 Q1 plz Thanks inadvance
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elemis

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #172 on: May 03, 2011, 03:47:54 pm »
Quote from: Relina on May 03, 2011, 03:14:21 pm
oct/nov 2007 Q1 plz Thanks inadvance

Which paper ?
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Offline EMO123

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #173 on: May 05, 2011, 04:31:16 pm »
Quote from: Relina on May 03, 2011, 03:14:21 pm
oct/nov 2007 Q1 plz Thanks inadvance
ya but which paper
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #174 on: May 05, 2011, 05:37:31 pm »
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elemis

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #175 on: May 05, 2011, 05:46:08 pm »
Quote from: Relina on May 05, 2011, 05:37:31 pm
paper 3
here http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_w07_qp_3.pdf


Terminal velocity is when the object falls at a constant velocity... Can you infer at what time it begins falling at constant velocity ?

The ball is accelerating as long as the graph has a positive gradient, though, the magnitude of the acceleration reduces with time.

Area under the graph whilst at constant velocity (see first point).

Area under the WHOLE graph.
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #176 on: May 05, 2011, 05:50:24 pm »
Quote from: Ari Ben Canaan on May 05, 2011, 05:46:08 pm
Terminal velocity is when the object falls at a constant velocity... Can you infer at what time it begins falling at constant velocity ?

The ball is accelerating as long as the graph has a positive gradient, though, the magnitude of the acceleration reduces with time.

Area under the graph whilst at constant velocity (see first point).

Area under the WHOLE graph.

a(i) i wrote 4.5/5/6 but answer was different so i didnot knoww why???
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elemis

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #177 on: May 05, 2011, 06:59:33 pm »
Quote from: Relina on May 05, 2011, 05:50:24 pm
a(i) i wrote 4.5/5/6 but answer was different so i didnot knoww why???

It has to be a range.

4.2 to 6 seconds.
« Last Edit: May 05, 2011, 07:02:38 pm by Ari Ben Canaan »
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Offline ~ Miss Relina ~

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #178 on: May 05, 2011, 07:02:14 pm »
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elemis

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Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #179 on: May 05, 2011, 07:03:14 pm »
Quote from: Relina on May 05, 2011, 07:02:14 pm
unfortunately its not  :(
here is the mark scheme have a look
http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_w07_ms_3.pdf


What are you talking about ?

The mark scheme says :

Quote
ALLOW 4.2 – 6s

EDIT : Look carefully at the graph. It becomes PERFECTLY horizontal at exactly 4.2s.
« Last Edit: May 05, 2011, 07:04:48 pm by Ari Ben Canaan »
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