IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: Vampire-Love4ever on May 08, 2011, 12:43:31 am
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Hi all,
I have collected my doubts from A2 Edexcel Physics new past papers. Please help me out with them! I'm completely self-studying my A-levels cos my teachers are of no help at all!!!!!!!
I know I could have posted them in the 'Edexcel Physics thread' but I making this new thread to avoid confusion!
Thanks much in advance!
Plzzzzzzzzzzzzzzzzz help me out here!!!!!!!!!
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The answer for part (a) is within range of 38-57mm but I have no idea how to do it!
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According to MS: the answer is C.
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According to MS: answer is D.
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The (b) part!
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Part (b), (c) & (d)!
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Now the following questions will be from Unit 5!
According to MS: the answer is B!
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According to MS: answer is C!
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According to MS: answer is 5.8 x 10^22 molecules! I got is as 6.4 x 10^22 molecules :S
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Why do we have to divide by 40? :S
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Part (b.i.)! Mark scheme attached! I don't understand this question at all!
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According to MS: answer is B!
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According to MS: answer is C!
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The (b) part!
you can find acceleration from this formula
acceleration=radius x (angular velocity)^2
a=r(w^2)
as u can see the diagram is drawn to scale! which means u can measure the radius from the diagram with your scale!
and the angular velocity you have calculated in the above a) part
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done on it
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I have attached the solution of question no. 3.
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Assi & Ash- thanks alot for your help and time! God bless! :)
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Anytime Friend ;)