AQA AS 2021 Paper 2 - AS-level Physics Past Paper

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00:00 Q1 - Uncerntainties - waves
05:32 Q2 - Graph analysis - wire tension
13:27 Q3 - Micrometer
15:38 Q4 - Mass on slope & electrical power & efficiency
20:50 Q5 - LED photons
26:44 Multiple choice -
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[caseykm]

"You're not testing people's physics ability by asking weird questions" THANK YOUUU SOMEBODY SAID IT FINALLY!

[ARK]

AQA AS 2023 paper 1 makes AQA AS 2021 paper 1 look like a breeze

[ewanfps]

for question 4.1 would you not just do mg/ sin theta ? because the friction is the hypotenuse

[dave]

Thank you so much, your work is so helpful!

[Notnd_]

Question 4.2 baffles me as sin=o/h so shouldn’t mgsin act downwards? 16:32

[arjunkukadia]

for question 2b, why do you not multiply 11.8 by 2 to find tensions in the whole wire? have you not just found the tensions in one half of the wire?

[bernarddabomb]

can you do a video on the 2022 paper please?

[badyahelamin]

@10:50 i drew a line of best fit which gives a young modulus of 1.06*10^11 which is out of range. Do you draw the line which passes through most of the points or passes between the upper and lower points?

[Pramittt]

for question 21 @39:40 why cant the answer be B?

[coldestaudios]

Why can't the elevator be moving at a constant velocity?

[romeog]

for q4, why is friction acting upwards and not downwards?

[SCS]

I'm still confused about why in q4.3 the friction goes upwards i thought friction opposes motion