Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Helium:
--- Quote from: Adzel on May 26, 2010, 08:44:21 pm ---Why don't you check the Mark Scheme :-\
--- End quote ---
marking scheme sometimes just gives answer,
some people want to know why or how ???
Ghost Of Highbury:
--- Quote from: weaam on May 26, 2010, 08:56:02 pm ---Umm ... how is the diagram supposed to look like..?
--- End quote ---
They haven't asked for the diagram in that subpart. Its not required, and drawing the huge no. of air particles colliding with dust particles is insane, just imagine that there is a huge no. of collisions going on which keeps the dust from falling down..
eastrimx:
can someone help me with the question 4 in october/nov 2008 paper 3 first variant?
http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Nov/0625_w08_ms_3.pdf
Vin:
--- Quote from: Helium on May 26, 2010, 08:57:32 pm ---marking scheme sometimes just gives answer,
some people want to know why or how ???
--- End quote ---
https://studentforums.biz/index.php/topic,6468.msg228261.html#msg228261
Weaam:
--- Quote from: A@di on May 26, 2010, 08:58:06 pm ---They haven't asked for the diagram in that subpart. Its not required, and drawing the huge no. of air particles colliding with dust particles is insane, just imagine that there is a huge no. of collisions going on which keeps the dust from falling down..
--- End quote ---
Actually it says, explain why the dust particles have not fallen to the floor. you may DRAW A LABELLED DIAGRAM to help your explanation...
I wonder what kind of diagram are we meant to draw and label here..
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