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

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Didn't like the paper as a whole tbh. PHYA4 went better personally. Made too many mistakes for an A*. You?

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Lol seriously?? Unit 4 was way harder for me... for me Unit 5 was reasonably ok compared to unit 4 but then again you had a different option which might have been more difficult compared my option :smile:

Reply 3441

DomRauba

Original post by CD223

For the SHC definition did you have to use the data given? 130Jkg^-1K^-1?

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yes

Reply 3442

Star Light

Original post by sophiebeth100

There's only three of you? Whoa! Our school made everyone do medical physics - we didn't even get a choice :s-smilie:

But wow, great! Me too - I can never get my head around whether or not I need to use a negative sign!!!

I got 0.19m too! That paper was amazing, the x-ray and the 6-markers were directly copied from past papers! And I'm the only one in my school out of about 100 doing Medical

Reply 3443

CD223

Original post by sykik

Astro was odd compared to previous years. I didn't really like it :s-smilie:

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Reply 3444

Disney0702

For those who did Turning Points did anyone find this exam easier than June '11? Because that had the lowest cap of 67/75. I want to try and make an assumption as to what the cap on this exam would be?

Reply 3445

k9000

Original post by TheGreyPhysicist

awesome :P
thanks!

it's calm my g

Reply 3446

sykik

Original post by Disney0702

Yh i found it really easy

Reply 3447

TheGreyPhysicist

Original post by k9000

it's calm my g

Hell yeahhh

Reply 3448

Disney0702

Original post by sykik

I agree! I found the Unit 4 exam more difficult than this exam. But I still want the grade boundaries to be as low as possible.

What optional unit did you do? I did Turning Points

Reply 3449

k9000

Original post by Disney0702

this was easier, personally I feel they will be this year will have 67 as the cap but my friends are going for 63. If you have done the legacy papers then this paper was a joke.

Reply 3450

username1432214

what did people say about alpha radiation in room and hazards?

I think i said it could collide and ionise human DNA which could then turn cancerous

Reply 3451

k9000

Original post by Bealzibub

what did people say about alpha radiation in room and hazards?

I think i said it could collide and ionise human DNA which could then turn cancerous

-outside it is relatively harmless as it can't penetrate skin
- inside it produces most ion pairs (compared to alpha and gamma)
- ionise cells which can have somatic/genetic effects.

Reply 3452

CD223

Original post by Bealzibub

what did people say about alpha radiation in room and hazards?

I think i said it could collide and ionise human DNA which could then turn cancerous

I said that and that breathing it in was more hazardous than contact outside the body.

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Reply 3453

Star Light

Original post by aprocrastinator

a nice paper, mostly because the 6 marker was the exact repeat of the 6 marker in recent papers (don't remember which one though)

did you get 0.19m for the corrected near point though? i always mess those calculations up lol

I'm paranoid I missed a question in Medical - is this all there was on it? Myopia question, db/dba question, ECG 6-marker and image intensifier?

Reply 3454

aprocrastinator

Original post by sophiebeth100

There's only three of you? Whoa! Our school made everyone do medical physics - we didn't even get a choice :s-smilie:

But wow, great! Me too - I can never get my head around whether or not I need to use a negative sign!!!

Really?? Basically our school made everyone doing turning points as that's the only topic the teachers knew how to teach but also they felt like it was the easiest to pick up as it used stuff from the other units. those who got above a certain ums at AS level got to choose the other options for self study and I chose medical cos I want to be a doctor :colonhash:

Medical physics is really hard if you're not interested in it! Yeah me either, but never need it again now!!!

Reply 3455

mxrxam

can anybody remember the questions with their corresponding marks? Im not asking for answers or anything, just trying to mentally guess how many marks I got. I did turning points, so if anyone remembers each question n marks for that too, that would be great!

Reply 3456

mxrxam

Original post by Sbarron

I would imagine so yeah lol

wasnt it just asking for the general definition of specific heat capacity though?

Reply 3457

JaySP

3m diameter for cassegrain?

Reply 3458

CD223

Original post by mxrxam

wasnt it just asking for the general definition of specific heat capacity though?

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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