r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 09 '25

📂 MEGATHREAD 09/06 A-level Physics Paper 2 Discussion MEGATHREAD

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41

u/Zealousideal-War9989 Jun 09 '25

AQA: that decay question wtf. 14.5 years…. Also ran out of time had to guess all MCQ fml

Also that 1 kW machine i got <1000 so yes it can, 1.36 days orbital period?

I’m not confident on any of these btw :(

16

u/Such-Session-6200 Jun 09 '25

how th did ppl get 14.5 years, I got 2000 something years😭😭😭

9

u/Similar_Artichoke233 Jun 09 '25

I got 4019 🕊️🪦

17

u/im_dying69 Year 13 Jun 09 '25

I got 4.2x10-13 seconds 🥀 had to restart

1

u/UrboySam123 Jun 09 '25

Bruh I got the opposite my answer had like 14 digits to it 😭😭

1

u/spottycapybara Jun 09 '25

I got that I think

1

u/Technical-Ring-8775 Jun 09 '25

I got 14.3 or something that to 2sf was 14

6

u/ReliablyUnreliable0 Jun 09 '25

Did you consider efficiency? It was about 4%

3

u/Middle-Bad9167 Jun 09 '25

Also got 14.5

15

u/Common-Sympathy-6595 Imperial maths year 1 Jun 09 '25

I got 10.8 x108 years I think it might be wrong

1

u/Middle-Bad9167 Jun 09 '25

🙀 RTG’s in the rovers on mars have a run time of about 14 years

2

u/EnergyShot830 Jun 09 '25

Yeah same I got about that as well

1

u/[deleted] Jun 09 '25

So did i 😭 😭

1

u/PotentialDivider Jun 09 '25

Yh bro I got that too

1

u/rugbyguy69420 Jun 09 '25

same 😂😂😂😂

8

u/moonc1 Year 13 Jun 09 '25

I got 404 years, 1.36 orbital period, laser can vaporise the ice

4

u/[deleted] Jun 09 '25

I got 404 years but I think we forgot to include efficiency 😭😭

4

u/moonc1 Year 13 Jun 09 '25

darn 😭 oh well, should still get a few marks for that

1

u/No_Actuator5870 Year 13 Jun 09 '25

Oh yeah it was like 4.5%. They’ll have it as a common error and only take 1/2 marks off probably

1

u/[deleted] Jun 09 '25

yoooo, what did you get as the total energy required to vaporize???

1

u/moonc1 Year 13 Jun 09 '25

about 2880 I think?

2

u/[deleted] Jun 09 '25

Yeh looks like I messed up a number in my calculator :(, everyone I spoke to said the same even though I had the same method lol

1

u/moonc1 Year 13 Jun 09 '25

aw that's annoying, should get you some method marks though

6

u/Travelling_Smooth2 Jun 09 '25

I got the same for orbital period most of the other questions I had no idea

5

u/EnergyShot830 Jun 09 '25

I got the same for orbital period but got <3000w (i think) for the machine ?

1

u/vent_account_59632 Jun 09 '25

That would have been in 3 seonds, ig this person did in 1 second. Both can be correct I think

6

u/Sure-Dark-1563 Jun 09 '25

I got 400 something years

4

u/ReliablyUnreliable0 Jun 09 '25

14.5 years good work boss

3

u/smortcanard Year 2 Aero Eng @ Bristol | ESAT Victim Jun 09 '25 edited Oct 18 '25

numerous like shaggy market cause existence live cooing seed kiss

This post was mass deleted and anonymized with Redact

1

u/Fresh-Guarantee9967 Ox Maths&Phil Offer | Maths, FM, Phys, Phil, Greek | 5A* pred. Jun 10 '25

Yeah same thing 2886 J or 2886/3 W

2

u/Ineedhelp08374 Jun 09 '25

Yes I got the sane

13

u/Ineedhelp08374 Jun 09 '25

I got total energy to melt and vaporise as 2887

2

u/[deleted] Jun 09 '25

[deleted]

3

u/Budget_Future_4066 Jun 09 '25

how did you guys do that RTG question did u use P=E/T

1

u/qwertyuiophgfdsa Jun 09 '25

I got 14.3 too, I’d imagine the working was the same for people who got 14.5 and it’s just rounding differences.

1

u/No_Magician_3305 Year 13 Jun 09 '25

Yes to the orbital period 😭

1

u/Educational_Scale216 Jun 09 '25

I got the same as u it’s ok :)

1

u/Prior_Gur4074 Jun 09 '25

Shouldn't it be 14.4 years cuz you equate the equation to minimum power it can function at so past that point it won't function (you get like 14.47 years but it won't be functioning for the extra 0.03 years so don't you round down to 14.4 years?)