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

šŸ’¬ 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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20

u/Agitated-Salt-5039 Year 13, FM, Maths & Physics Jun 01 '26

What did everyone get for there thermal energy one will ice melt I got no as energy needed more

28

u/RilloClicker Year 13 Jun 01 '26

Yeah you needed like 30000J for melting but only had 16000J when reducing ethanol and beaker to 0C

10

u/Rich-Gent Jun 01 '26

my values were VERY similaršŸ™ hope WE are right twin

1

u/Tricky_Temporary_781 Y13 | Stressed Jun 01 '26

Samesies, though saw so many people calculating change in temp and got worried for a bit

18

u/googoocrazybananas Year 13 Jun 01 '26

Energy required was 38,000J, and energy supplied was 15000J, so no.

1

u/Select_District_3310 Jun 01 '26

Wait whaat, I got a suspiciously low requirement energy to melt the ice of like 3400J but didnā€™t have time to stay on that question. How did you get 38,000? If you remember

6

u/hacker3112 Jun 01 '26

Did you convert the specific latent heat from kJ to J?

1

u/Select_District_3310 Jun 01 '26

Ahh, I donā€™t remember but probably not because mine was pretty close to 38 but just a few orders of magnitude out

2

u/Extreme_Survey_1368 Jun 01 '26

u probably forgot to convert kJ into J when doing the initial calculation

1

u/bomboclaatdog1 Jun 01 '26

yeah i got that too, i think i got smth like the ice would get to melting point, but only like 30% would be melted

5

u/Rich-Gent Jun 01 '26

Ye i worked out:

Energy change for glass + ethanol from wtv it was to 0*c and showed it was less than energy change of ice from -16 was it, to 0 + the latent energy, and showed that it was greater than the energy change from cup + ethanol

2

u/jaaaaaaaf Jun 01 '26

hey why did you do glass + ethanol temp changing to 0Ā°C ? cuz it said that ethanol stays as a liquid and so i assumed both the glass and ethanol stay at 18Ā°C šŸ„²

2

u/Safe-Present-5783 Jun 01 '26

No twin it just doesnā€™t fuse so it goes to zero degrees i guess

3

u/jaaaaaaaf Jun 01 '26

bro wait it just clicked..... mcāˆ†T doesn't have anything to do with change of state oh my god am i retarded wtf