IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Reference Material => GCE AS & A2 Level => Pastpapers => Topic started by: sabrina on June 06, 2010, 04:30:50 pm
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hi guys
i don't have o/n 2004 physics paper. someone plz post the paper here. its not there in freexampapers n also extreme papers is not opening. plz someone help :(
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phy nov04 paper 2...
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phy nov04 paper 2...
thanks a lot really appreciate it. :)
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npz :)
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hey... could someone please explain to me how many significant figures we're meant to work with for CIE AS physics and why?
for maths and chem i always use 3 significant figures but in the physics mark schemes i'm always so confused
when the answers get rounded off in a strange way... eg N/O/09 P21 question 2(c)(i) or when they're just put to 2sig fig.
thanks for any help!
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In physics, you have to answer in the least significant figure in the question, or ONE better. This means that if in your question, the maximum your quantities are stated is upto 2 sf, you can answer in 2 sf or 3 sf, but not more or less. Teachers often tell students to use 3 sf in physics as well, and it works well for them because in most cases you can answer in 3 sf, thanks to this rule, BUT there will be exceptions. The mark scheme doesn't state all the possible forms of answers sometimes, so don't be daunted by the majority of them being 2 sf--they have a set standard for each exam and follow it, but their rules apply nonetheless.
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thanks so much... that helped a lot!! :)
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I will look