A wave is essentially a series of regular oscillations. In the case of a wave on the sea, the material that is being oscillated is the seawater itself. Even though the wave appears to be moving towards the shore, the water is in fact simply moving up and down giving the illusion of a travelling wave. In the case of light, you have oscillating electric and magnetic fields. The magnetic field is at right angles to the electric field and in phase with it.
I don't teach a particular exam board. I am not actually aware of the specific content of each A-level syllabus. I have prepared revision videos which cover the broad level of material used in various A-level courses. I leave it to the students to determine which videos look relevant for the courses which they are doing. The A-level revision playlist is in a reasonable and logical order of subjects.
I sometimes feel like I'm gonna literally vomit with stress, I hate a levels so much, however watching these videos and making a few notes has been really helpful I'm so glad that these exist :)
Sir ,you taking an effort to personally comment on any comment or doubts in the comment box shows how a great teacher you are. Thank you for helping all students out here who are struggling to clear their concepts. Thanks a lot #respect😃
In the last question at part b, PV= nRT can be used to find the pressure, which seems to be a easier method, but i guess p1v1/t1 formulae is used to keep the solving method more consistent.
If light is a wave, what's waving? i mean, when talking about sound, amplitude stands for loudness, frequency for tone, and both concepts apply in a medium (usually air) as tangible phenomenon. I'm confused.
Is the magnetic field not simply the change in electric field because if that were so then they couldn't be in phase as sin goes to cos and cos to -sin. Has this got something to do with the fact that they are at right angles ?
Please findout work done by an aneroid barometer in joules per unit volume ? Efficiency of an aneroid barometer in joules? Work done on an aneroid barometer by atmospheric pressure volume changing ? In joules ?
can't have delta Q and delta W (in the equation: delta U = delta Q + delta W) because they are PROCESSES not STATES. Energy is a state, so there can be a change in energy so that can have a delta.
PLEASE REPLY 1) what exam board do u teach for ? 2) Could you please put your videos in a playlist according to the syllabus specfication of AS physics ? Thanks :)
@@neuropcs5879 Graduated with 1st class honours degree in Aerospace Engineering (class of 2019) I currently work as a data scientist / machine learning engineer. ______________________________________ Also good luck with your exams wish you all the best , if you have any questions please feel free to ask.
+Surnameless J Largely up to you and might depend on what temp you are measuring. e.g. Room temp might be in C. Boiling point of nitrogen might be Kelvin. But gas laws always need T in Kelvin.
A wave is essentially a series of regular oscillations. In the case of a wave on the sea, the material that is being oscillated is the seawater itself. Even though the wave appears to be moving towards the shore, the water is in fact simply moving up and down giving the illusion of a travelling wave. In the case of light, you have oscillating electric and magnetic fields. The magnetic field is at right angles to the electric field and in phase with it.
I don't teach a particular exam board. I am not actually aware of the specific content of each A-level syllabus. I have prepared revision videos which cover the broad level of material used in various A-level courses. I leave it to the students to determine which videos look relevant for the courses which they are doing. The A-level revision playlist is in a reasonable and logical order of subjects.
I sometimes feel like I'm gonna literally vomit with stress, I hate a levels so much, however watching these videos and making a few notes has been really helpful I'm so glad that these exist :)
Thanks Alice. I hope the exams go well and aren't too stressful.
Sir ,you taking an effort to personally comment on any comment or doubts in the comment box shows how a great teacher you are. Thank you for helping all students out here who are struggling to clear their concepts.
Thanks a lot #respect😃
I think I've covered material which is likely to asked at either AS or A2 level.
Any app for calculating workdone by an aneroid barometer in joules per unit volume ?
Please make a formula over it and do the math ?
why have i only found out about you 7 hours and 30 minutes before my unit 2 exam ¬_¬
In the last question at part b, PV= nRT can be used to find the pressure, which seems to be a easier method, but i guess p1v1/t1 formulae is used to keep the solving method more consistent.
I love you man, im over here in the Caribbean doing the CAPE exams, it's adapted from the Cambridge exam so its similar
Thank you , and thanks for the help you are providing to all of us :)
At 18:30 , you said that E=KT will be usd because it is not a gas.
So dos it mean that E=KT will not be used for gas?
Better late than never. I hope the exam goes well for you.
Not really. Is there a particular issue you had in mind?
If light is a wave, what's waving? i mean, when talking about sound, amplitude stands for loudness, frequency for tone, and both concepts apply in a medium (usually air) as tangible phenomenon. I'm confused.
Is the magnetic field not simply the change in electric field because if that were so then they couldn't be in phase as sin goes to cos and cos to -sin. Has this got something to do with the fact that they are at right angles ?
I was wondering if you have covered root mean square speed in other videos and if you have then can you plz tell me. Thank you
Can you give us a lecture on string theory?
Please findout work done by an aneroid barometer in joules per unit volume ?
Efficiency of an aneroid barometer in joules?
Work done on an aneroid barometer by atmospheric pressure volume changing ?
In joules ?
can't have delta Q and delta W (in the equation: delta U = delta Q + delta W) because they are PROCESSES not STATES. Energy is a state, so there can be a change in energy so that can have a delta.
Thanks a million!!
You are welcome. I hope my videos have proved to be helpful.
PLEASE REPLY
1) what exam board do u teach for ?
2) Could you please put your videos in a playlist according to the syllabus specfication of AS physics ?
Thanks :)
8 years ago wow! how did your exams go? Where are you studying/working now? Really interested to know lol I'm doing my A levels in 2022 :)
@@neuropcs5879
Graduated with 1st class honours degree in Aerospace Engineering (class of 2019)
I currently work as a data scientist / machine learning engineer.
______________________________________
Also good luck with your exams wish you all the best , if you have any questions please feel free to ask.
Sir does this cover CIE questions as well?
My separate A Level revision playlist is intended to cover AQA, OCR, Edexcel and CIE. The sample questions are generic.
Hi, I do the edexcel syllabus and in the exams I use Pv=NkT and you use Pv=NRT?
They are the same. PV = nRT and PV = NkT. P, V and T are common.
n = no of moles. N = Avogadro number
R = gas constant, k = Boltzman constant.
Nk = nR
He already covered all topics for As level. with questions...Sadly i got destroyed by unit 1 today..im so worried and depressed right now..
do you have any tutorial video about thermal physics?
+Ting Tiew Yik I have a playlist on Thermal Physics
+DrPhysicsA Actually Thermodynamics
You posted this three days from my papers
that was 8 years ago... and now I'm studying for my papers. I wonder how they went, hope they were all okay for you :)
Thanks Doc!!!
when do i use 273 and when do i use degrees Celsius?
+Surnameless J Largely up to you and might depend on what temp you are measuring. e.g. Room temp might be in C. Boiling point of nitrogen might be Kelvin. But gas laws always need T in Kelvin.
Just general edexcel type questions that's all
Thank yooooou
LEGEND
There are no AS level
Thank you so much!! I just had to say it again lol
actually two
AH yes thanks :)
thanks im not really a physics guy so i'll be dropping it lol
Thermal physics questions