Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
$H00t!N& $t@r:
vin im still waiting.... hope u hvnt forgotten me :'(
Syed Kazim:
--- Quote from: pglasg74 on May 25, 2010, 10:45:19 pm ---
thxxx 4 ans. mine, can u answer the fuse one as well? and also, can you tell me oct/november 2006 #23 please? CAN SOMEONE TELL ME TEH RELATION BETWEEN FREQUENCY, AMPLITUDE, PITCH AND LOUDNESS PLEASEPLEASEPLEASEPLEASE?
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When the frequency increases, the pitch of a sound increases.
When the amplitude increase, a sound becomes louder.
$H00t!N& $t@r:
@6394: kk :D
Vin:
--- Quote from: Shooting Star on May 25, 2010, 10:23:41 pm ---m/j 2005 q32. The answer is b. why?? i thought its A. nd can u explain y its nt A...
--- Quote from: Shooting Star on May 25, 2010, 10:49:44 pm ---vin im still waiting.... hope u hvnt forgotten me :'(
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OK listen .. A is a variable resistor .. so it can be used to vary the pd/current/resistance .. BUT if u notice it is connected in parallel with the lamp .. the rule states that appliances connected in parallel receive EQUAL pd ..
B is a potentiometer(variable resistor) here it is used as a rheostat where it has a sliding contact which is used to vary the current and pd ..
mysteryman:
in those questions about the compass, where shouldnt the needle point?
and in those questions about the 4 blocks and the temperature changes are given then they ask which one has the greatest thermal capacity. what should i write?
like in: http://www.freeexampapers.us/IGCSE/Physics/CIE/2009%20Nov/0625_w09_qp_1.pdf
question 16
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