2010 EOY Science Book A (MCQ for physics)
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Comments (4)
Qian Shu Yi said
at 11:58 am on Sep 8, 2011
what is the precision for a digital stopwatch?
johnlittlephysics said
at 2:15 pm on Sep 8, 2011
2 d.p. (in seconds)
Qian Shu Yi said
at 12:00 pm on Sep 8, 2011
for qn 40, how can trapped air in the polystyrene reduce heat transfer by convection?
johnlittlephysics said
at 9:47 pm on Sep 9, 2011
After careful consideration, we believe Q40 answer should be:
the trapped air reduce heat loss by conduction only.
Ref: http://www.gcsescience.com/pen14-cavity-walls.htm
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