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AQA Physics GCSE P2 & P3 [OFFICIAL THREAD]

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Reply 840

Lauren-x-

Original post by kiwifruit99

Darn it 😒

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I was confused whether it was the suspensory ligaments or the ciliary muscles!? I put ciliary muscles in the end -.-

Reply 841

Tuffyandtab

Original post by morrissies

will I still get the mark if I put the unit for charge is C, not coulombs?

Yes. I put C as well.

Original post by semise

So was tthe half life 3... Or 12!?! :s-smilie:

I put 12. When 80 is halfed 3 times you get ten. So half life is 36/3 = 12.

(edited 8 years ago)

Reply 842

S21.99

Original post by maxjackson5

I said it produced more ene per kg of fuel, and it doesn't produce radioactive biproducts? not sure really

It does - the next page said 'tritium is radioactive'

Reply 843

Crystalxo

i changed supspensary ligaments to cillary muscles last minute :frown:

Reply 844

hannnahjx

Original post by Lauren-x-

I was confused whether it was the suspensory ligaments or the ciliary muscles!? I put ciliary muscles in the end -.-

What question was this the answer for? I literally don't even remember :frown:

Reply 845

Tob987

Original post by morrissies

Same here!! I think the highest point on the graph was 170m in 10 seconds and speed = distance/time
so 170/10 = 17

Nah caus it wanted max not overall

Reply 846

varun1212

Original post by 11Jason11

Guys, let's put this behind us and focus on the upcoming exams
Is there anything we can do to change what we've done?
No.
Is there anything we can do to change our final grade?
Yes.

Revise hard

Exactly, although it is hard to not chat about the answers with other people, it's just the tradition :P

Reply 847

Olmeister

Original post by Tob987

Who makes the unoffical markschemes? Be so grateful for it. If its already be made can someone send link or post it here

Yes same... If you find one please quote me

Reply 848

Emmavh99

Original post by Hxzel

I got 12 by doing 36/3

Posted from TSR Mobile

For half life you do 80/2=40 for one year
40/2=20 for two years
20/2=10 for three years
Then 36/3 years = 12 years

Reply 849

S21.99

Original post by kiwifruit99

But if it was the critical angle, wouldn't it be:
ImageUploadedByStudent Room1432135753.179763.jpg

Posted from TSR Mobile

some light also reflects in... CGP

Reply 850

vivalastudent

What direction would the wire move in the motor effect question? I put down...

Reply 851

username1942323

For that question i got 612 joules

Reply 852

Tuffyandtab

Original post by kiwifruit99

Me too

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Me three!

Reply 853

ryanrobinson

for the 6 mark question I put:
- The nucleus contains positively charged protons and neutral neutrons
- The nucleus makes up most of the mass of the atom
- The nucleus is overall positively charged
- There are electrons on the shells which are negatively charged
- Most of the atom is empty space
How many marks do u think this would get?

Reply 854

neil20143

Original post by kiwifruit99

I put ciliary muscle which one was it?

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It'll be both right I think. In 2013, you'd have gotten a mark for labelling one part of the eye a lens or an iris in the first question so I think it'll be the same case here.

What did pole get for the focal length change? I got confused with that aha.

Reply 855

Jules12345

Original post by RG110man

But it wanted the fastest speed, so I presume you had to take points from where the line was straight and then work it out from there...

Same, what answer did you get?

Reply 856

manishahjee

Original post by wannabe_lawyer

Oh thank God. I got 3.6 initially but I thought that was too low so I converted it into grams. Hopefully we at least get 1 mark :/ I still got 7.2 for the height question

Same. That's why I did it again. Lol. Hope so. What did you get for max speed?

Reply 857

Haamoo7

For question 8a in P3, it said: "an alternating potential difference in the primary coil will induce an alternating current in the secondary coil. Explain how"

I thought that an alternating current induced a potential difference, and not the other way around?

Reply 858

isabellagrace

This is the first time ever since starting GCSEs that i have felt more confident AFTER looking on TSR :biggrin:

IT all went great apart from that critical angle drawing question (i did some reflected and some refracted but not along the boundary) and for some reason i got 8 for the momentum question?!?!?! I dont even know how but apart from those, looks like it went wel!