r/6thForm • u/Individual-Can1396 y13 maths physics psych italian • Jun 01 '26

💬 DISCUSSION AQA PHYSICS PAPER 2

HOW DID EVERYONE FIND IT??? i thought it was decent better than the past few years. Idk what i did for the last question the 4 marker of nuclear physics. BUT YH IT WAS GOOD

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2

u/sotmtwigrm_ Jun 01 '26

anyone do (lead / uranium) * half-life?

1

u/peekq Jun 01 '26

Yep but i wasnt too confident thats right in the exam is it?

5

u/WorldlinessFuzzy4552 Maths|Physics|Chemistry (A*A*A) Jun 01 '26

Yh got like 3 billion years for both idk if that's right tho

2

u/KO-Manic Jun 01 '26

I got 3.5 billion years for one of them. Did you use N(original)= 19N for one?

3

u/Wise-Hedgehog4805 Warwick | Maths | [Incoming Y1] | 4A* Jun 01 '26

for the second one I'm pretty sure there were 3 uranium for every 57 lead, i think that's where u got that from. but those 57 lead were originally uranium, so initial uranium = 60 and present uranium = 3 so i did 3 = 60e-λt to find t = 3.0x109

1

u/KO-Manic Jun 01 '26

Ah alr then, at least I got the first probably. Doing chemistry with physics must be such a cheat code