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AQA Physics PHYA5 - 28th June 2016 [Exam Discussion Thread]

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Reply 460

WillRose

Original post by Yo12345

Could you explain how you would do this?

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look at the textbook

Reply 461

Windowswind123

Original post by WillRose

is there anything else about derivations that we need to know other than that?

How did you get from the second to last to final expression?
The third is simply because there is three coordinates?

Reply 462

ChronicBoredom

Could anyone pleeeease explain to me how you know what the nature of radiation emitted is from different things? E.g. moderators nucleus, spent fuel rods, fission fragments, nuclear reactor core?

Reply 463

Starkidemmax

Any predictions for the six markers?? (both section A and Astro)

Reply 464

Yo12345

Original post by marioman

This page explains it better than I can:

http://www.chemteam.info/Thermochem/Determine-Specific-Heat.html

Thank you. How would you plot a graph for it though? Would you have 8 different masses?

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Reply 465

Yo12345

Original post by Yo12345

Why on Earth were the neutrons included in fission calculation in June 2011, but not in June 2014? When would I know when to include it or not?

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Bump

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Reply 466

Ainsleyy

Can anyone make a brief list of all the experiments we are expected to know?

Reply 467

Mentalmirz

Original post by Ainsleyy

Can anyone make a brief list of all the experiments we are expected to know?

These are the ones mentioned in the specification:
Rutherford's scattering experiment
electron diffraction
determining different types of radiation
determining value for absolute zero

Reply 468

WillRose

Original post by Windowswind123

How did you get from the second to last to final expression?
The third is simply because there is three coordinates?

yeppp

Reply 469

username1860653

I've been revising all day phew
not very confident, I was off college for almost all of unit 5 because of a relapse in illness
its amazing how much our teacher covered in 7 weeks and then didn't bother to help me out lol
i think I might be okay though, nuclear stuff is good for me
turning points and gases not so much >3>

Reply 470

TajwarC

Original post by Yo12345

Why on Earth were the neutrons included in fission calculation in June 2011, but not in June 2014? When would I know when to include it or not?

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bump

this has confused me too