All of AQA Waves Explained - A Level Physics REVISION

In this video I go through all of AQA waves for use as A Level Physics revision. This video is not only vitally important for preparing for your exam but it also has essential information for use as an introduction to A Level Physics.

I recap progressive and stationary waves, transverse and longitudinal waves, and mechanical and electromagnetic waves. There are properties of waves you need to know about including; wavelength, frequency, speed, amplitude and time period. There also different wave phenomena you need to understand including; reflection, refraction, diffraction, polarisation, interference, coherence, path difference and total internal reflection.

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Thanks for watching,

Lewis

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[sophiegetachew]

Seriously thank you so so much, this was extremely helpful! Could you make some on other aqa a level physics topics? Thanks again!

[yuckyschool]

life saver - basically learnt a whole topic in 30 mins before my exam

[dakeyrasuk]

Excellent summary, thanks.

A couple of small points to note (for those that study OCR certainly) when he says the antinode is the place of maximum displacement be careful of how you define antinode in an exam. Better to say the antinode is the where the particles experience a maximum amplitude or the place where the maximum displacement is maximum. All points between nodes will displace to a maximum displacement, but the amplitude varies to a maximum at the anti node.

Second point is where he mentions coherent waves when begining on interference/diffraction. He says they are coherrant because they are in phase, that could be misunderstood as a valid definition of coherent. The bit he says after is actually what makes them coherent - they have a constant phase relationship. The amplitude being similar is not relevant to coherency (but is relevant to the diffraction pattern produced).

Otherwise an excellent an excellent account!

[waitroseolives]

Please do this for electricity this was amazing

[alexmag]

i beg you someone tell me why lewis has taught me better than most my teachers in a single video

[sharanjitshokar]

Very useful!! Best use of my time on YouTube ever :)

[hipstyhopsty]

THANK YOU, This is rhe chapter ive been delaying doing

[christopherreoch]

i was struggling to find a full, comprehensive guide on the subject, this is exactly what i needed, thank you! :D

[em_universal]

Well, I have to say this was the most concise video on yt about waves.

[Lolly]

Thank you so much for doing full topic videos!

[neuropcs]

Incredibly helpful and engaging right the way through. I've only got a few months left before my exams and my biggest regret was not purchasing the resources on the website earlier! I'm definitely going to be letting my younger brother know about it, as he's starting his A-Level course in September! Thanks again.

[searchingsuccess]

You are a lifesafer Lewis! THANK YOU SO MUCH! You just cleared up a topic I had such a hard time understanding. Wish you the best

[aziza]

Thank you sir!
You made me love waves.

[Neduliukas]

I build LEGO as a hobby so seeing the little brick made examples makes revising so much more bearable :)
Thanks for the video!

[Lolly]

Please could you do a video measurements and their errors? We’ve missed the estimation of physical quantities bit (orders of magnitude etc) and having all of the uncertainties stuff would be great. I really like these videos

[ransfordako-nai]

Please could you do a revision video like this for Mechanics and electricity

[ptol]

Watching this after finding about your channel on a crowdcast physicsinaction lecture, this is awesome stuff!!!

[ninajoyce]

Thanks! i have my a-level exam in 4 hours so v helpful!

[willcrapenter]

This is an unbelievably good video please can you do one for particles of light

[wrexet]

Good job you can tell he takes pride in his videos