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

1. (Original post by bwr19)
I now realise that it should've been that, yeah. Ah well.
How do you know that ever happens? You're not told that. maybe earth and the asteroid are always at right angles to the Sun.
2. Did we all get Q = mc delta t + ml = 47000J for lead?
3. (Original post by king cobra)
Did u choose x Rays ?

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I can't remember can you remind me the question please

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4. (Original post by king cobra)
0.1 for alpha
1 for beta
Did u choose x Rays ?

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Pretty sure it's alpha isn't it
5. For the q where people got 5000K can someone explain how you got that? People I spoke to at school all got 16000K
6. The first question

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7. (Original post by chizz1889)
Alpha is 0.1m and beta 1m
Damn I wrote that down then decided to multiply them both by ten

That was a beautiful paper. Was everyone else's optional module as good as Turning Points?
8. The highest an A* has ever been for astro was 62/75; that paper was June 2011 and was ridiculously easy- it's not going to be higher than 60 for an A*.
9. (Original post by TheRAG)
Did we all get Q = mc delta t + ml = 47000J for lead?
I think I got that yeah, to 2 s.f.

(Original post by EconFan_73)
For the q where people got 5000K can someone explain how you got that? People I spoke to at school all got 16000K
What question was that?
10. (Original post by Faaiz Shah)
No way . Atleast 62 for an a*.
Doubt it defo an easy paper
11. **** this. Not checking any comments or mark schemes to get my self depressed over the summer

The paper was ok. Section A was straight forward APART FROM THE ****ING 6 MARKER

Section B was Hard (turning points) but the 6 marker was just bliss!!!
12. (Original post by chizz1889)
Alpha is 0.1m and beta 1m
Do you think I'll get the mark for putting alpha is 0.05m and beta 0.1? (I've seen the alpha range to be 5cm on other papers)
13. (Original post by bwr19)
I now realise that it should've been that, yeah. Ah well.
Oh dear... Another mark or two lost
14. (Original post by king cobra)
The first question

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Uh what did the question ask?

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15. the image was good quality as the resolving power is less than the viewing angle (or something along those lines cba to think )
16. (Original post by Sbarron)
Oh dear... Another mark or two lost
Then you would need to add two AU (one for each side of the sun for the whole diameter of earths orbit)
17. (Original post by Ninja_heel)
Doubt it defo an easy paper
Easy 6 markers dont make up for calculations . Some calculations in turning points were kinda tricky.
18. (Original post by RemainSilent)
the image was good quality as the resolving power is less than the viewing angle (or something along those lines cba to think )
I wrote that !

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19. How did peopel calculate the density of the nucleas??
20. (Original post by MangoFreak)
I think I got that yeah, to 2 s.f.

What question was that?
Bout half way through Astro

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