Author Topic: IGCSE PHYSICS DOUBTS HERE !!!!  (Read 53901 times)

Offline NotAbod

  • Wikipedia Contributor
  • Global Moderator
  • SF Farseer
  • *****
  • Posts: 3929
  • Reputation: 65535
  • Gender: Male
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 ;)

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #166 on: April 30, 2011, 03:28:29 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
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

Offline NotAbod

  • Wikipedia Contributor
  • Global Moderator
  • SF Farseer
  • *****
  • Posts: 3929
  • Reputation: 65535
  • Gender: Male
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #167 on: April 30, 2011, 03:39:23 pm »
you're most welcome :)

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
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
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

Offline NotAbod

  • Wikipedia Contributor
  • Global Moderator
  • SF Farseer
  • *****
  • Posts: 3929
  • Reputation: 65535
  • Gender: Male
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

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #170 on: May 02, 2011, 03:09:26 pm »
experimental error, or just size of the paper, it is different if u photocopy or download and print, so no worries
Thanks :)
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #171 on: May 03, 2011, 03:14:21 pm »
oct/nov 2007 Q1 plz Thanks inadvance
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

elemis

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

Which paper ?

Offline EMO123

  • I Don't Know What To Do
  • SF V.I.P
  • ********
  • Posts: 5818
  • Reputation: 65534
  • Gender: Male
  • Ficticious Boy
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #173 on: May 05, 2011, 04:31:16 pm »
oct/nov 2007 Q1 plz Thanks inadvance
ya but which paper

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

elemis

  • Guest
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #175 on: May 05, 2011, 05:46:08 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.

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #176 on: May 05, 2011, 05:50:24 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???
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

elemis

  • Guest
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #177 on: May 05, 2011, 06:59:33 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 »

Offline ~ Miss Relina ~

  • SF Senior Citizen
  • *****
  • Posts: 611
  • Reputation: 65535
  • Gender: Female
  • Every rose has a thorn
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #178 on: May 05, 2011, 07:02:14 pm »
~~~Yarab everything turns alright at the end ~~~
    -----------Ameeeeeeeeeeen------------

elemis

  • Guest
Re: IGCSE PHYSICS DOUBTS HERE !!!!
« Reply #179 on: May 05, 2011, 07:03:14 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 »