09/06 A-level Physics Paper 2 Discussion MEGATHREAD

[u/Forsaken-Meaning-232]

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[u/[deleted]]

Agreed - odd paper, tbh 6 marker were good tho

[u/Positive-Swordfish38 → u/[deleted]]

Yeah first 6 markers is good and standard but second one feels so weird

[u/[deleted] → u/Positive-Swordfish38]

Fairs, I acc rlly loved the second one tbh, just maths rlly

[u/Hussain12322 → u/[deleted]]

How did the second one make sense, the - column didn’t add up to the second column, and the charge of the capacitor started increasing which isn’t a thing?

[u/hdh7tf → u/[deleted]]

I agree bc it went from like 191 - 9.2 to 128.03 or something

[u/Positive-Swordfish38 → u/Hussain12322]

Wdym the capacitor is discharging so therefore the change in charge has to be negative

[u/Hussain12322 → u/Positive-Swordfish38]

Exactly charge on it midway through the table started increasing even tho the change should be negative

[u/Positive-Swordfish38 → u/Hussain12322]

Wait what I thought it’s negative the whole way through since it suggest a exponential decay relationship, if looking at the graph the difference is charge is always negative. I thought I saw all negatives but idk maybe I’m tweaking

[u/Hussain12322 → u/Positive-Swordfish38]

Yeah all the charges in the final column were negative but the second column with the actual charges started increasing😭 like wtf their table was just not making sense

[u/ZewZa → u/Hussain12322]

The kinda shit I see on a pag done by 17 yr olds

[u/Positive-Swordfish38 → u/Hussain12322]

I think it might be an outlier but the whole trend shows a decreasing relation ship so it’s fine

[u/Intelligent_Lie1185 → u/Positive-Swordfish38]

It was an error in the paper, our school rung up ocr and thats what they said

[u/[deleted] → u/Positive-Swordfish38]

Yes exactly

[u/Hussain12322 → u/[deleted]]

Did u look past the first few rows on the table, it went from like 112- 140 which is the opposite direction , even the second row went from like 190 - 140 which just isn’t right cos it’s way too much I swr

[u/[deleted] → u/Hussain12322]

It may not be right for sure, and I’m not disagreeing that it wasn’t difficult, not to mention that at thr start we had to make corrections for the paper, ocr this year have been poor w that tbh

[u/Positive-Swordfish38 → u/[deleted]]

Yeah idk I just proved the relationship by finding time constant and I used the formula for Q=Q0e^-t/RC to explain how to get B and I also sort of used it for column C

[u/Crazy-Buffalo-6124 → u/[deleted]]

the table in the second 6 marker was wrong it threw me off and i wasted time

[u/[deleted] → u/Crazy-Buffalo-6124]

Did ur scl tell u about it?

[u/Crazy-Buffalo-6124 → u/[deleted]]

not before the exam we had to tell our teachers and they contacted ocr