Ateo
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First 5 questions, please mention if any answers are wrong.

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6-8

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9 (Data Analysis)

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xDanny 117
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Looking good but for the damping question part (II) I mentioned that the amplitude would gradually decrease for light damping but will still have the same period. Heavy damping = will not oscillate. They're looking for something more for the 2nd mark I think.
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Ateo
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(Original post by xDanny 117)
Looking good but for the damping question part (II) I mentioned that the amplitude would gradually decrease for light damping but will still have the same period. Heavy damping = will not oscillate. They're looking for something more for the 2nd mark I think.
Yes I agree. I wrote down more for that question in the exam but couldn't remember it. I wonder if there is a maximum period for damping. Say for example if the system was oscillated in a liquid of high viscosity.
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Ateo
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(Original post by xDanny 117)
Looking good but for the damping question part (II) I mentioned that the amplitude would gradually decrease for light damping but will still have the same period. Heavy damping = will not oscillate. They're looking for something more for the 2nd mark I think.
Questions 6-8 are there. I will try to put up 9 before I go to sleep.
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BLUERUN
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Thanks , this has helped
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Ateo
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(Original post by BLUERUN)
Thanks , this has helped
Not a problem I hope the paper is scaled a lot. I didn't do too well because I rushed it.
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BLUERUN
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same here i think I've messed up the data analysis question and a couple of the earlier question, there really wasn't enough time to complete the paper and look over some questions. I rushed it and still didn't have anytime at the end
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LaydurrDude
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Eeeeekkk, looking at this now makes me worry that I've done all of the data analysis wrong! Died a little more inside


This was posted from The Student Room's iPhone/iPad App
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31541
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I've lost several marks for the data analysis - I ****ed up my graph to start with.

I'll have a look through your answers now.
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I've lost several marks for the data analysis - I ****ed up my graph to start with.

I'll have a look through your answers now.

Think I got around 76/90 - really pissed with myself. Lost ~7/8 marks in the data response due to the graph problem. Do you know whether they do much error carried forward marking for the questions following the graph?

I'm hoping scaling will be high. In June 2010 - it was arund 74/75 for 111UMS. Personally, I thought that was harder than 2010.
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xDanny 117
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(Original post by CD315)
I've lost several marks for the data analysis - I ****ed up my graph to start with.

I'll have a look through your answers now.

Think I got around 76/90 - really pissed with myself. Lost ~7/8 marks in the data response due to the graph problem. Do you know whether they do much error carried forward marking for the questions following the graph?

I'm hoping scaling will be high. In June 2010 - it was arund 74/75 for 111UMS. Personally, I thought that was harder than 2010.
74/75? Do you mean 74/90? That sounds unbelievably low!
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(Original post by xDanny 117)
74/75? Do you mean 74/90? That sounds unbelievably low!
Apologies - I meant "74 or 75 out of 90" ha.

http://www.rewardinglearning.org.uk/...el%20Units.pdf

Look at that - it was 61/90 for an A, 67/90 for an A* - so I'm assuming it was 74 or so for 100%.
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xDanny 117
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(Original post by CD315)
Apologies - I meant "74 or 75 out of 90" ha.

http://www.rewardinglearning.org.uk/...el%20Units.pdf

Look at that - it was 61/90 for an A, 67/90 for an A* - so I'm assuming it was 74 or so for 100%.
Well there's hope for us all yet! Personally I see myself in the high 60's out of 90. You don't happen to have the 2011 raw to UMS or know where it can be found?
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(Original post by xDanny 117)
Well there's hope for us all yet! Personally I see myself in the high 60's out of 90. You don't happen to have the 2011 raw to UMS or know where it can be found?
No - they only published the 2010 ones because it was the first year of the A*. They don't publish them every year like other exam boards do.

It's annoying, really. But I definitely think ours will be scaled similar to 2010.
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Zappaz
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Thank you for putting my mind at ease. Couldnt do the specific heat capacity question, and for some reason couldnt do the SHM calculations(seriously frustrating, must have used wrong values) or the final question of the paper. But your values for most question agreed with mine. Will probably lose a few marks somewhere for the explaining questions. For the damping question though for second mark you needed something extra, such as amplitude of oscilation decreases 'with time' or if crit damped it stops oscillating and returns to equilibrium. Meh. Will probably need to repeat if I want an A*, but shouldnt do really badly, thankyou! (and good luck) Hopefully it will be scaled a little, as most were complaining about time and it being difficult! I didnt really struggle with time though.
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(Original post by Zappaz)
Thank you for putting my mind at ease. Couldnt do the specific heat capacity question, and for some reason couldnt do the SHM calculations(seriously frustrating, must have used wrong values) or the final question of the paper. But your values for most question agreed with mine. Will probably lose a few marks somewhere for the explaining questions. For the damping question though for second mark you needed something extra, such as amplitude of oscilation decreases 'with time' or if crit damped it stops oscillating and returns to equilibrium. Meh. Will probably need to repeat if I want an A*, but shouldnt do really badly, thankyou! (and good luck) Hopefully it will be scaled a little, as most were complaining about time and it being difficult! I didnt really struggle with time though.
It will be scaled more than a little
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Ateo
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(Original post by CD315)
It will be scaled more than a little
Confident for C3? I'm finishing the papers in 40-45 minutes but this might increase because I suspect recent papers will be harder. Do you know of any good resources for practice. I'm thinking about doing some AEA questions.
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(Original post by Ateo)
Confident for C3? I'm finishing the papers in 40-45 minutes but this might increase because I suspect recent papers will be harder. Do you know of any good resources for practice. I'm thinking about doing some AEA questions.
Yeah, C3 will be really easy. I'm getting papers finished in 20 minutes..
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Ateo
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(Original post by CD315)
Yeah, C3 will be really easy. I'm getting papers finished in 20 minutes..
Do you think they take marks off for not stating obvious things but for which there are marks in the mark schemes?
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(Original post by Ateo)
Do you think they take marks off for not stating obvious things but for which there are marks in the mark schemes?
I have never been sure of things like that, so I state the obvious anyway. I literally write everything down in a maths exam (and it has worked).
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