A LEVEL PHYSICS 9702 PAPER 4 | May/June 2023 | Paper 41 | Paper 43 | 9702/41/M/J/23 | 9702/43/M/J/23

I'm solving A Level Physics 9702 Paper 4 M/J 2023/41 or M/J 2023/43 in this video.

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Time stamps:
0:00 Intro
3:18 Q1 Gravitational Field and Electric Field
12:03 Q2 Circular Motion and Forces
25:15 Q3 Temperature and Thermal Physics
39:03 Q4 Ideal Gases and Thermodynamics
58:47 Q5 Alternating Current (Half-Wave Rectification, Smoothing and Discharging a Capacitor with Time Constant)
01:09:57 Q6 Magnetic Field (Parallel Wires Carrying Current)
01:20:28 Q7 Quantum Physics (De Broglie Wavelength)
01:37:03 Q8 Medical Physics (Ultrasound)
01:43:55 Q9 Nuclear Physics
01:54:42 Q10 Astronomy (Hubble's Law and Red Shift)
02:03:12 Clarification on MJ 2023/42 Q3 (i) BOX
02:07:41 Outro

Hey! I realised that there was a better explanation for the box in MJ 2023/42 Question 3 using the equation pV=nRT. I explained that part in this video at 02:03:12.

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[A]

thank you man for making all these videos to aid students around the globe, we really appreciate your efforts. thanks for highlighting the PV=nRT fomula too! all the best to those who will be sitting for tommorow's paper

[up-py]

hardest paper I have solved for A2 physics yet
Thanks for video mate

[khkulainam]

Thank u! Hits different the day before exam!🤧

[duckie]

2:02:47 how have the definitions changed? Becasue think about it, if you defined gravitational field as force per unit mass, then how would you define gravitational field strength? Because as far as I know, they are not the same thing. The marking scheme is incorrect.

[jessepinkman]

Hello. Your videos are extremely helpful, especially Paper 5. Thank you for uploading detailed explanation of the QPs. PLEASE upload more Paper 5 QPs. Really struggling with it. Thank you😊

[Ayushr]

Thank you so much. Yeah, tomorrow we have P4!

[thelabofmiracle]

thank you the way you explain is sooo clear

[csnaveen]

In q 2(a), is the system in simple harmonic motion? If so, can I say this: 
The sphere is in centripetal acceleration because the force is perpendicular to the velocity. As the acceleration increases, the x increases too (because a is proportional to x) and therefore the spring lengthens.

[xuankienta]

Hello, thanks for making these videos, I want to ask you that whether your prediction about threshold mark to get an A star has a high accuracy.. I just finished my paper 4 exam today and my mark are in the range from 85 to 93/100 (due to tricky questions about first law of thermodynamics). Can I make sure that my mark like this is enough to get an A star? Thank you.

[aria]

For 3d.. I did the same calculation but changed the heat capacity and the change in temp to find the time needed. mine was at 54.3 but urs is at 56..? What did I do wrong?

[zohairnoorkhan]

Why cant the radiation detector detect more radiation due to background radiation? Why just less

[danieljoseph]

Sir i just had my paper 43 right now October November, i don’t think it went that well, but what do you reckon grade thresholds for a A will be in October November 2023? Is there a chance it could go back to close to 70s for a A? And also another question, there was some questions that it didn’t imply sig fig, but based of the other data given, it would have been 2 sig fig, but i did the answer in 3 sig fig since that was the answer i got ( this was a thermodynamic question ), while i still get the mark for the answer or do they take these sig fig stuff seriously even when it not stated exactly what sig fig to round to? Just wondering. Thanks for these videos by the way, these carry my marks so much. Sorry for the long question haha

[nadeemgamer]

Sir is it possible with hard work and dedication to convert As level b grade 73% into a grade in A2 for physics.
Ur videos r very helpful.Thank u for guiding us.

[f.r.i.e.n.d.l.y]

Paper 41 is so much more difficult than paper 42 is it just me?

[nusaibamahbub]

Can you do this same var for chem too plsss

[nusaibamahbub]

Please please do the same var for chemm plss

[mashriqafnan]

bhaia ami jani apni bangladeshi. apni kothae poran pls tutor me

[anuuu]

thanks for uploading this before P4 sir.Sir I wanted to know whether is it possible for me to go for a C in Physics because in AS I got 55%(D) and how much should I score in both P4 and P5 to get a C??pls help me sir