What a pleasant corner of KZread

@ScienceShorts

5 жыл бұрын

Welcome to the wholesomeness, friend.

@DracosThorne

5 жыл бұрын

oh?

@frankdimeglio8216

2 жыл бұрын

@@ScienceShorts Some say that WHAT IS the electron is not a fundamental PARTICLE, and that what is the photon is a fundamental PARTICLE. CLEARLY, this is unsubstantiated nonsense. Balanced inertia/INERTIAL RESISTANCE is FUNDAMENTAL with regard to what is the electron AND what is the photon, AS they are BOTH inherently, CLEARLY, AND NECESSARILY structureless ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). By Frank DiMeglio

Not going to lie, you make me want to keep on revising for my physics exams.

If the world had more teachers like you teaching in our schools, then we'd all be noble prize winners

my teacher literally forgot to teach me this and my qualifying exams are in a week.... And you just taught me at least a week's worth of lessons in almost 14 minutes. Your amazing. Keep it up.

I don't usually leave comments but this is a really well-produced video, the physics knowledge is also more in-depth than most of the videos I've seen on this topic. Suprised this channel only has 14k subs.

@ScienceShorts

6 жыл бұрын

Thank you!

@em8136

4 жыл бұрын

@@ScienceShorts 50k subs in a year nice

@brokenbrain6380

3 жыл бұрын

not any more

@puddleduck1405

2 жыл бұрын

damnnn 128k now haha

@joshhampton7235

2 жыл бұрын

@@puddleduck1405 you got ur A level on thursday too and are also cramming lmao?

Why is physics so satisfying? Every time I wonder about something with physics, there's a perfect explanation and that explanation just clicks inside my mind. Ahhhhh...

Me after teacher explained this: *de excitation* Me after seeing this video : *excitation*

not exaggerating.... but these videos made me understand things the my teacher take 2 hrs to explain and usually takes 2 to 3 classes to finish... in just 10 to 15 mins.... these are life saviour... I love physics ....and my teacher is a good teacher and I mostly understand him but sometimes it takes my teacher ages and sometimes it flies over my head a few times I thought of quitting physics.. thank you for making my life easier.....

Your a really good teacher, i actually ended watching the whole video even though the answer i wanted was already answered.

Preparing for my ocr a2 physics on 20/05/19. You are the best teacher ever. My physics teacher at school spent a couple weeks on this I didn't get it at all, your 13 minute video on 2x speed (bit rushed for time!) cleared it all up. THANK YOU! omg!!

This has to be the best explanation of this particular topic I ever heard,❤️

This video is incredible. Understood a concept I’ve been struggling with for a long time in a matter of five minutes. This channel is brilliant

3:53 blue pen to green smooth

@ScienceShorts

4 ай бұрын

Wow, I didn't even realise - complete accident!

This is an incredible explanation. Thank you so much. You’re a legend

You are my life saver..... Your videos are absolutely helpful for students like me who study a level independently.

Oh my god I’m watching this at 10 at night before my actual A level physics exam and I finally fully understand this topic thank you! 😅

Wow, you are an amazing teacher. Not only do you explain well you also make us students feel somewhat engaged as it is easy to understand the logic behind what you teach. Keep working hard and I hope you make a lot more subscribers.

You are a legend! finally, I found someone who explains physics in-depth and it makes sense, Thanks a lot. I will pray for you to reach millions soon.

Your videos are really well made, the editing is on point

thank you so much for making these videos. they are very helpful. they make physics so easy and a fun subject. thank you once again. love from Zimbabwe

EACH AND EVERY VIDEO OF YOURS IS SO HELPFUL ! SO SO HELPFUL !

You helped me a lot my friend. Thank you very much. Excellent explanations!!

thank you so much for this video, your teaching is just great!!

Excellent explanation. Thank you very much!

Thank you for the wonderful (easy to understand and follow) explanation ❤

This video was extremely helpful! Thank you!

Love your channel so much I can't even convey in words

Absolute best channel for physics 2. GPA saver!

I've watched all these videos and I think you've missed out binding energy, also could you do a video on Fayman diagrams where you just show off all the ones we need to know and how to get to it.Thanks, loving these wideo

Man i love u,u helped me so much,now I understand almost everything and i am able to do lots of exercises,thank you very much.

@ScienceShorts

6 жыл бұрын

+CapitainSwaag Thanks dude!

Now i actually get how a flouresent tube works... Ive read it multiple times but having it actually explained makes it easier

Thank you so much this cleared everything up so much

Great explanation sir.

WHEN WALTER LEWIN said : Teachers that make physics boring are criminals........ Mr. science shorts you have proved theoretically that you are the teacher that made Physics Interesting instead or boring so I guess that makes you the opposite of criminal which is probably a HERO.....

your videos are really useful keep up the good work

You make physics easy man, kudos💯⚡🔥

So good to be here watching . thanks

Could not have explained it better thank you sooo much

hey... thanks for all these superb videos Btw do u hv a video on cool and hot gases line spectra

UNDERrated!! tysm for this!

Thank you so much! Really appreciate it!

I have my first paper for phsyics today. Your videos have saved me !

@abbsterjonesy

5 жыл бұрын

good luck, me too!

@reecec8337

2 жыл бұрын

yo howd it go

I subscribed these vids are so helpful!

this man is saving my life

you are the best. keep up the good content

Your explanation is great Thanks

great explanation, thank you!

I wish I had a great teacher like him in our school❤

Thanks for the video, helped a lot.

thank you very much sir for your teaching, I have mainly 2 questions : 1- (Fluorescent tube experience) when the electrons excite the gaz's electrons and after these electrons give back their energy by emiting photons, there should be a lot of different lights absorbed by the coating! Among these lights there are a group that won't be absorbed by the coating and there are some that will be absorbed. the coating's electrons will be emitting another bunch of lights so my reseaning is there will be a lot differents lights emitting (in differents slap of time) why do we see just one of them ? is our brain tricking us? 2- why after a electron absorb an energy they prefer to release it as soon as possible? my reseaning is there a loss of enegy somehow ! what the source of these loss of energy i don't now! Thank you very much in advance

At 6:18 , is there anything that prompts the photon to be remitted for the the electron to go down an energy level or is it a random process? Also, thanks for the video! It's clearing up a lot of small things that I couldn't quite place together.

@sakeralabas8642

Жыл бұрын

it's pretty much spontaneous, the electron will almost immediately de-excite unless it has escaped the atom. The only thing that varies is how it de-excites, whether it goes straight back to the ground state or if it drops to an intermediate energy level first. I am not too sure what determines which path the electron takes when de-exciting though

Excellent, thank you!

Ur videos are too good. thanks.

Thank you so much! You are great. I am from Manipur by the way !

I think you missed explaining the energy levels and bands in solids! Could you add that somewhere please? Thank you and quality content always appreciated and loved from you!

@msa1117

5 жыл бұрын

Yup.

Well done great explanation :)

At 6:42 How about if incoming photon have energy at 6 eV ? Do the electron at ground state excite to 5 eV ? And how about remaining energy 1 eV where it's gone? Do they transform to another form of energy ? And what the remaining 1 eV energy will be? Thank you for your clear and nice presentation.

Thank you for the help

You're the best sir!

Thank you very much ❤😊

Very Helpful it was

Excellent!

Super useful!

So can an electron be in an energy level other than the ground state and if so, is this more likely to be ionised and leave the atom. Could it also move down the energy levels or is the process just very quick and assumed to start from ground level? Where does the photon go from here- after de-excitiation?

Shouldn’t the ground state be -13.606 eV?

Hey, cool vids and presentation. Do hot gases and cold gases have anything to do with absorption and emission spectra?

@austinnicholson1233

7 ай бұрын

Yes they do partially, when cool gas atoms are absorbed by photons they excite and the gas atoms become hot , when they de-excite they cool down again. Correct me if im wrong i am only learning this myself for the first time

Thank you

when the electron jumps to a higher sate is it jumping between whole shells, or between the subshells of its current shell?

Should the gas inside of the florescent light bulb be ionized gas? if so, how the coming electrons interacts with the gas molecules electrons ? If not, how the coming electrons are passing through the gas ? Since we need ionized gas (plasma) to have electrons travel through the gas ?

8:55 important. Also 10:55 Just a reminder for myself

@incompletefragments

4 жыл бұрын

Thanks man！

@User-ei2kw

4 жыл бұрын

@@incompletefragments It wasnt for you

Thank you.

Really interesting video, thank you. But it raises a few questions for me: (1) In your example with energy levels of 0, 5, 7, 8, if a photon with energy of 6eV is encountered, does it push an electron up to the 5eV state? What would happen to the remaining 1eV? (2) Since there are only a finite number of elements in existence and therefore a finite number of possible energy states, does this mean that light can only have a finite number of specific frequencies? If so, that would mean that there is not really a continuous spectrum of light. This seems wrong to me somehow.

General question abt the collision of electrons. So when an electron collides with another electron in the fluorescent tube, the energy of the knocked off electron from its energy level, is it kinetic energy? And if so does that mean that absorption energy (energy of photon absorbed by the electron) has a lesser magnitude than Kinetic energy? [Yes, I know absorption energy isn't a form of energy, i just used it as an adjective.]

Hello great video. just wondering why the mercury gas has to be at low pressure?

hi, so the electron can somehow detect that the photon doesnt give it enough energy to excite and so rejects it? Or does absorb and release the energy?

Hi great video! I had a question - if the photon has too much energy, will it be just ignored?

@faarishaque9142

2 жыл бұрын

Yeah. If it doesn't have the right energy for the electron, the photon just "passes through"

I think you missed out that if the electron is given 6eV of energy, it won't absorb the photon because energy levels are discreet, great video though, really helpful content!

@allanmathew7133

5 жыл бұрын

5:03 he explains it with 3eV

@hollinstwesigye1801

5 жыл бұрын

go back to the video, he said if a photon of 3ev won't be absorbed

@Reggie-tf4ex

5 жыл бұрын

@@allanmathew7133 He doesn't, he only talks about falling short of the mark not exceeding it.

I was lost when my Physics teacher told me all this stuff and I started hating physics for a while. Tbh this vdo made my mind and changed it again😂. Thx sir your vdo is so helpful 🥰

Energy level for simple harmonic oscillator? What is the Energy associated with boson, spinless particles and electron? related to ground state energy...1/2hbarw

Thanks very much for the help, the textbook doesn't explain this topic very nicely!

great my guy

Awesome.

So is ionisation energy the same as work function?

Thanks

Sir you are a 🐐

I understand that a photon will move up if it gains a photon but then won't it lose energy in the process of going up?? Plz explain

Hello, just wondering, what would happen if the energy of the photon was equal to 6eV? Would the interaction not take place, enabling the photon to go straight through? Or would the electron go to the 2nd shell and not the 3rd? And, if so, what would happen to that remaining eV, would it be emitted as a photon or what? Thank you

hi there, just a question regarding 9:02 , why did you use E = to 5 eV? isnt the electron dropping from n= 7 to the ground state? and the energy when it's excited is = to the energy when it drops down? thank you

@sebastianoozomaki5831

5 жыл бұрын

Charlie Kake-White because he was only calculating the wavelength of the photon emitted from 5eV to 0eV level.

wouldn't the emission and absorption spectra have the same lines? what about excitation and de-excitation from intermediate lines: n=2, n=3.etc?

I owe you a lot

Is the ground state specific to an electron or is the ground state specific to an atom? Is the ground state just the energy level that an electron originally started from, and so it is specific to that electron? I.e. different electrons can each have a different ground state in the same atom. Is the ground state always the energy level denoted by n=1 or could it be n=2 or n=3 etc?

Love this explanation, thank you. One question - what happens if an inbound photon has 6ev? It has enough energy to jump to the 5eV level but there would be 1eV of energy left over?

@ScienceShorts

2 жыл бұрын

Nope - has to be exact! That is, unless it's enough energy to ionise it.

@rehanshabbir8056

2 жыл бұрын

@@ScienceShorts Wdym by enough energy to ionise it? For example if it has 10eV it can go to the 5eV level and come back to ground state? Or will it not accept 10 eV?

Can you please make a video about Band Theory?

Are these energy levels the same as the s,p,d,f orbitals?

You said there would be more wavelength of light in the emission spectrum compared to the absorption spectrum, however, could electrons not be excited from a higher energy level than the ground state to an even higher one to produce the remaining wavelengths of light seen in the emission spectrum?

@jordanharris5225

6 жыл бұрын

Skitzzy they would've de excited by the time another photon would hit it when its at the higher energy level. Basically, de excitation is instantaneous unless it’s at its metastable state

@elliotskunk

5 жыл бұрын

even so, more emissions would still be seen. Remember that the electron can dexcite through many routes, emitting a variety of different photons. For each excitation there is more than one emission (except for n = 1 --> n = 2 of course)

In your example, if a photon had 6 eV and crossed paths with an electron, would it excite the electron to the 5 eV state or just pass straight through?

@ruvindrigunawardena3369

6 жыл бұрын

It would excite to the 5eV state as it only has 6eV s. For it to excite to the energy level above 5eV (in this case 7eV state) it needs exactly 7eV s. hope this helps :)

@PhoenixPlayz

6 жыл бұрын

This is false, if the Photon doesn't have the exact amount of energy required to move up an energy level it will pass through, e.g If it has 6eV, as it isn't 5 or 7 nothing will happen and there will be no excitation

video number 2. 2 days before exam

why the photon is released when the electron moves from n=2 to n=3?

So what's the rule for ionization? Any photon with energy greater than the upmost shell will ionize? And what happens to the excess energy? Is it tuned into kinetic energy of the electron? And if the energy of the exciting photon is within shell boundaries but does not match exactly any of the shell energy levels, will it just pass through without any interaction?

@ScienceShorts

2 жыл бұрын

Yes.

is it the same method if we want to find electron temperature?