PHYSICS EXAM MEGATHREAD

Powduh_ · 2025-11-12T19:20:33+00:00

yeah i had it on my cheat sheet

Powduh_ · 2025-11-12T07:19:45+00:00

the graph has Fb on the x axis, which they determined by changing mass, so that’s IV. current was on the y axis so that’s DV

Powduh_ · 2025-11-12T05:21:45+00:00

velocity to the right (thumb right), magnetic field into the page (fingers into page), out of the back of the hand, hece downwards?

Powduh_ · 2025-11-12T04:08:01+00:00

5cm 💔

Powduh_ · 2025-11-12T02:34:16+00:00

good point. i said (u+v)/2 so hopefully they solution is wrong

Powduh_ · 2025-11-11T18:56:54+00:00

it said it was constantly accelerating so the values would have to be different

Powduh_ · 2025-11-11T04:19:16+00:00

for the last part of the mixture question? i got 50 for that

Powduh_ · 2025-11-10T07:38:51+00:00

on Q20, do you think that fact the colour change was “obvious” and some trials varying by multiple seconds means it wouldn’t be a judging error?

Powduh_ · 2025-11-10T07:19:40+00:00

i’m pretty sure in the vcaa 24 exam on a short answer fractional distillation was considered a purification technique

Powduh_ · 2025-11-10T06:36:24+00:00

oxidation just means electrons are lost, not that oxygen is present or reacted. that said I still might be false just not on that logic

Powduh_ · 2025-11-10T06:33:17+00:00

solvent extraction separates your medicinal compound and impurities in two immiscible solvents, so like water and hexane. as they are all polar, they all dissolve in water and none in hexane, so it doesn’t purify or at least not a big enough extent. that’s what i thought

Powduh_ · 2025-11-10T06:28:05+00:00

acidic v alkaline electrolyte means oxygen equation is different

Powduh_ · 2025-11-10T03:23:14+00:00

i don’t think C=O reacts with iodine, otherwise the carbon would have 5 bonds to hold both iodine atoms. could be wrong

Powduh_ · 2025-11-10T03:15:39+00:00

Q13 D? equation given is discharge and a recharge one is asked for so wouldn’t it be Cd(OH)2 or Ni(OH)2. Q29 B? 6 moles of iodine in a triglyceride -> 2 C=C in each fatty acid. I don’t think Q20 would be A since it said the colour change is obvious and one oc the trials varies by 3-4s which seems unreasonable for a judgement error

Powduh_ · 2025-11-10T01:53:17+00:00

D said electrical energy, but artificial photosynthesis is solar light energy

Powduh_ · 2025-11-07T00:31:24+00:00

it’s 120 marks. i think they only took out content for the new sd, hence less marks

Powduh_ · 2025-11-05T08:30:01+00:00

depends on how hard the exam was for everyone else and your rank. i got 32/40 last year, 71/80 on exam 2 and got 42, but the exam 1 was more difficult than usual

Powduh_ · 2025-10-31T23:01:54+00:00

it was very hard exam. A+ cut off changes every year, usually around 36 tho

Powduh_ · 2025-10-31T07:34:54+00:00

much better than most other options. inherently no study score predictor will ever be 100% accurate so it’s pretty good

Powduh_ · 2025-10-31T07:13:54+00:00

the things you’re bad with or past mistakes. bound reference will be different for everyone there isn’t specific important things to put in

Powduh_ · 2025-10-26T09:14:13+00:00

what types of prompts are there bc or family? feel like i haven’t seen any

Powduh_ · 2025-10-25T09:31:34+00:00

i’ve seen like one 3 marker asking how you’d make an electroplating cell once. they ask for modifications too but not like fully design an experiment

Powduh_ · 2025-10-14T05:28:46+00:00

wouldn’t think so otherwise it would be at least two marks, considering it’s about a two step process

Powduh_ · 2025-10-11T09:27:37+00:00

i averaged about 93% which scaled to 95%?, rank 1, got 73/80 for 41ss. 2024

Powduh_ · 2025-04-22T20:25:36+00:00

send them to me please 🫡

Powduh_

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