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# AQA Physics PHYA5 - Thursday 18th June 2015 [Exam Discussion Thread] watch

1. What is the requirement for A overall in A2 physics?
2. (Original post by CD223)
I think it stated the specific heat capacity of Lead and asked what that sentence meant. In which case I believe I'm right in saying you had to explain specifically that 130J of energy would raise the temperature of 1kg of Lead by 1K.

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Would you lose marks for stating general SHC?

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3. (Original post by mrno1324)
What is the requirement for A overall in A2 physics?
480 overall in both AS and A2
4. Sorry but is there mark scheme for section 1 and medical physics, cant find it anywhere in thread.
5. Does anyone remember the last question on Section A, or how many marks?
6. (Original post by Geek100)
Does anyone remember the last question on Section A, or how many marks?
Using 3/2 kT = Ek to work out the temperature. I got 320 K
7. (Original post by johnny147)
Using 3/2 kT = Ek to work out the temperature. I got 320 K
Yeah, me too. Do you remember how many marks it was? Also, do you remember the marks for the whole question (the one after the six marker)?
8. (Original post by aprocrastinator)
480 overall in both AS and A2
Cheers
10. (Original post by Geek100)
Yeah, me too. Do you remember how many marks it was? Also, do you remember the marks for the whole question (the one after the six marker)?
2 marks for assumptions
1 mark for the mean square speed
2/3 marks for temperature
11. after 6 mark there was 1 definition of SHC ( 1 ) , Total energy ( 3 ) , kinetic model assumptions ( 2) , rms squared ( 1 ) , temperature (2)

Hey guys, put in how well you think you did for Nuclear and Astro, so we can get an early idea of grade boundaries levels
13. Has the unofficial mark scheme come out yet?
14. (Original post by DomRauba)
after 6 mark there was 1 definition of SHC ( 1 ) , Total energy ( 3 ) , kinetic model assumptions ( 2) , rms squared ( 1 ) , temperature (2)
Are you sure? I missed them all out.... I thought the 6 marker was the last one of sectionA.
15. For the applied; what did people get for the area of the P-V diagram? ~69J?
16. (Original post by vxl429)
For the applied; what did people get for the area of the P-V diagram? ~69J?
I got 70.. but probably a range accepted I would assume for counting squares..!
17. (Original post by Vincent Song)
Are you sure? I missed them all out.... I thought the 6 marker was the last one of sectionA.
100% sure, sorry bro
18. (Original post by johnny147)
2 marks for assumptions
1 mark for the mean square speed
2/3 marks for temperature
Thank you!
19. (Original post by DCMed96)
Anyone done the medical physics paper? I was given the original paper, not the R paper.. Is it same for everyone??

The original paper has ECG for the six marker
how do you know what the original paper has?
20. Similar answers to you - but the last two were threshold of hearing and threshold of feeling

(Original post by jf1994)
I thought it was pretty good, I did kinda panic on the question about sound, but ended up guessing that the straight line was the dB scale because intensity is uniform across the whole range of frequencies and the curved line was dBA because it accounts for the sensitivity of the ear, one of the points on the curve was the threshold of hearing at 1000Hz and the other point was the frequency at which the human ear is most sensitive

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