AQA Physics PHYA1 - 24 May 2016 - RESIT [Exam Discussion Thread]

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Exams987
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AQA Physics PHYA1 - 24 May 2016 - RESIT [Exam Discussion Thread]
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Euclidean
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Do you have any questions about this exam?

Last year's paper is a good paper to do in timed conditions as it was a little bit unconventional, I remember it being quite different sitting in the exam and answering it to past papers.

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Exams987
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(Original post by Euclidean)
Do you have any questions about this exam?

Last year's paper is a good paper to do in timed conditions as it was a little bit unconventional, I remember it being quite different sitting in the exam and answering it to past papers.

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i am ok with the particle physics part , but with the electricity section i tend to struggle with the written questions.
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astrostar29
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I think with last years paper the particle section was quite easy, but the answers they wanted to questions later on in the paper just did not make sense.
Touchwood next weeks paper is similar to some of the nicer ones.
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Exams987
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(Original post by astrostar29)
I think with last years paper the particle section was quite easy, but the answers they wanted to questions later on in the paper just did not make sense.
Touchwood next weeks paper is similar to some of the nicer ones.
how is your revision going?

do you have notes for the electricity section you could possibly send me

thanks in advance
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username2592579
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does anyone have any tips in what depth we should be revising at? the 2015 paper showed that you need to revise quite in depth, the particle section was fine
but the electricity is what got most people i believe. How and where could i find resources to revise electricity so i know it back to front so i could answer questions such as 2015s comfortably?
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astrostar29
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(Original post by Exams987)
how is your revision going?

do you have notes for the electricity section you could possibly send me

thanks in advance
Exams987 tbh theres isnt very many notes you can make on thr electricity section, my advice would be to do lots of past questions, happy to send you what i have though. PM me!
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Exams987
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(Original post by astrostar29)
Exams987 tbh theres isnt very many notes you can make on thr electricity section, my advice would be to do lots of past questions, happy to send you what i have though. PM me!
thanks for your help but i have found some revision videos which seem very good.

https://www.youtube.com/playlist?lis...VpClPe1AKom9Cm

once i finish making notes from them , i will start past papers, hopefully by end of today i will have done some past paper questions
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Improvement
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(Original post by Exams987)
i am ok with the particle physics part , but with the electricity section i tend to struggle with the written questions.
Same
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Exams987
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(Original post by Improvement)
Same
i am currently going through the electricity section again

where are you in terms of revision ?
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CD1998
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Guys how do you define root mean square voltage? I didn't really understand the mark scheme for this question.
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Exams987
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(Original post by CD1998)
Guys how do you define root mean square voltage? I didn't really understand the mark scheme for this question.
https://www.youtube.com/watch?v=Am5Y...om9Cm&index=18

skip it towards the end
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CD1998
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So it's the equivalent DC voltage that provides the same power in the circuit?
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Exams987
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(Original post by CD1998)
So it's the equivalent DC voltage that provides the same power in the circuit?
yes
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CD1998
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(Original post by Exams987)
yes
Ok thanks a lot. Good luck!
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Improvement
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(Original post by Exams987)
i am currently going through the electricity section again

where are you in terms of revision ?
I get the theory side of it like Unit 1 revision I have completed! It is just the actual exam questions I struggle with!
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Exams987
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(Original post by Improvement)
I get the theory side of it like Unit 1 revision I have completed! It is just the actual exam questions I struggle with!
i have the same issue as you,
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Billsonbubbles
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Hi everyone



I think I have gone over all the past papers.... by the way there is this really good website

www.egsphysics.co.uk and if you go to the exams bit ... the old spec papers actually are good.

Anyway my question is about positive and negative temperature co - efficents.


For positive temperature co- efficents the resistance increases with temperature right ... as the atoms in the metal vibrate causing a reduction in the flow of charge ( reduction in current.


For negative temperature co- efficent resistance decreases as temperature increases... as there is an increase in the number of ions in the metal ?... this causes an increase in the flow of charge and hence an increase in the current?



If someone could clear that up for me that would be good.


Cheers (y)
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Exams987
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(Original post by Billsonbubbles)
Hi everyone



I think I have gone over all the past papers.... by the way there is this really good website

www.egsphysics.co.uk and if you go to the exams bit ... the old spec papers actually are good.

Anyway my question is about positive and negative temperature co - efficents.


For positive temperature co- efficents the resistance increases with temperature right ... as the atoms in the metal vibrate causing a reduction in the flow of charge ( reduction in current.


For negative temperature co- efficent resistance decreases as temperature increases... as there is an increase in the number of ions in the metal ?... this causes an increase in the flow of charge and hence an increase in the current?



If someone could clear that up for me that would be good.


Cheers (y)
that seems correct ,

was there something in particular you wanted help with?
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Billsonbubbles
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(Original post by Exams987)
that seems correct ,

was there something in particular you wanted help with?
Not really I just wanted someone to make sure that I was correct


Thanks (y)
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