Mate you might just have saved my Physics A-Level

Your way of explanation is sooo awesome Seriously specially in less time , you cover a lot of stuffs Thanks :)

@PhysicsOnline

7 жыл бұрын

+Usman Alamgir Thanks

Dude, just two words... THANK YOU

@PhysicsOnline

5 жыл бұрын

No problem!

@a.human.

5 жыл бұрын

@@PhysicsOnline I never thought you'd reply but Happy New Year! Thank you very very much for making lives easier for self taught A level students like me. We really appreciate your existence in this world and all your unconditional efforts to make Physics enjoyable and understandable for students around the world! God bless you

The stop motion on this one is gracefully done!

At 2:31, did you mean to say 'node' instead of 'antinode,' as shouldn't the sentence be "The distance from a node to another node is equal to the wavelength of that wave, over 2" (not "The distance from a node to another antinode is equal to the wavelength of that wave, over 2")??

@Tom_Hillman

7 жыл бұрын

no

@AbirMojumder

7 жыл бұрын

yea he made a mistake there

@Kianrui

2 жыл бұрын

Around 4:00, i don't understand the f. Can explain? Why first is f1, then f2 then f3.....?

You sir are a live saver. Can't thank you enough.

Thanks so much! I was struggling with this topic.

Man, I cannot thank you enough, you are saving me. Thank you, from the core of my heart! Aghhhh I just cannot formulate a good enough sentence that can truly express my gratitude!

This is just what I need !! THANK YOU :D

You are a life saver ... Thank you so much ... I'm able to understand much better

Thank you for this video. You taught me something new :)

Thanks for the help - I needed it

Very very very nice... Thanks you saved me a lot of time!!

Thank you! That was really helpful :)

Thank you so much this helped a lot!

Mate you are amazing! Respect++🥇

Great video, really useful!

could you go through similarities and differences of progressive and stationary waves? It is on the spec, but I can't find any information on it online.

Sir those explanations are really good

Nice animation!

Videos are really really good.

Fell asleep during this part of lesson, worth it

Thank you very much

Thanks again and again

Brilliant Videos

Can you explain where the extra length of string comes from when the standing wave is at its highest amplitude vs when it is a straight line.

where do you pluck the string to form stationary waves?

What is the pattern between the different harmonic patterns?

Thank you

Hi, at 0:56 you say the two progressive waves will have the same phase difference? It was my understanding that the two waves should be in antiphase in order for stationary waves to occur?

Hi :) Great video. Quick question: isn't wavelength supposed to be the distance between 2 consecutive nodes/antinodes? why is it lambda over 2 for the fundamental frequency

@SidharthShambu

6 жыл бұрын

Distance between 2 consecutive nodes or antinodes is HALF OF WAVE LENGTH

Splendid

1:41 can this ever form from EM waves like light waves

awesoooooommmmmeeeeee

what are the characteristics of stationary waves ???

Did you mean the distance between 2 nodes is lambda over 2?

@PhysicsOnline

9 жыл бұрын

Aiknaath Jain You're right. A common mistake is that people think the distance from node to node is the wavelength when it is half the wavelength.

@RinuPereira

6 жыл бұрын

But how about the distance between two antinodes? Isn't that a wavelength?

@chevish7559

5 жыл бұрын

@@RinuPereira Distance between two antinodes is still half wavelength

really useful video thanks. Just wondering what is the difference between a stationary wave and a progressive wave in terms of phase difference?

@PhysicsOnline

8 жыл бұрын

+Naomi Snow Phase difference can apply to both, do you have an example question where this comes up?

Does that mean when a stationary wave is created, at the nodes is there deconstructive interference and at antinodes there is constructive interference?

@PhysicsOnline

5 жыл бұрын

That’s right

@mariehill6547

5 жыл бұрын

GCSE and A Level Physics Online thank you!

At 4:06 you have written 3rd Harmonic as Lambda= 2/3 L. Shouldn't it be Lambda= 3/2 L for 3rd Harmonic?

@poopyakuza8891

4 жыл бұрын

1/3 L =lambda/2 so from that we can say lambda = 2/3 L

Shouldn't the 3rd harmonic be 3/2 Lambda

@Pavsta1992

8 жыл бұрын

+Cardifyz you could rearrange to write it as L= so it's L=3/2 Lambda , because L contains 1.5 wavelengths

@elliotskunk

5 жыл бұрын

1.5 wavelengths in one length therefore λ = L/ 1.5 therefore λ = L / (3/2) therefore λ = 2L / 3 remember leave, change, flip

what is the difference between a maxima and an anti-node?

@amadif1793

Жыл бұрын

Maxima is the maximum point on a diffraction pattern (on young's double slit) while an anti-node is the point of maximum displacement on a stationary wave.

shouldnt the reflected wave cause interference and cancel out the produced wave???

@elliotskunk

5 жыл бұрын

its in phase, so the interference is constructive

What does the period of a standing wave exactly mean?

if the stationary wave doesnt transfer energy then why can you hear sound from a guitar?

@baruchdavis9634

5 жыл бұрын

If I've understood correctly, at nodes the energy that would be transmitted by a progressive wave is cancelled out by the fact that in a standing wave, destructive interference occurs where the energy transferred is cancelled out and so noise from sound waves is cancelled out. However, at any other point in the wave, constructive interference between the transmitted wave and the reflected wave (which forms the standing wave), occurs, and so the amplitude is actually doubled at these points so at those place in the wave the sound produced is actually louder and it's at these points where you actually hear the sound, loudest, at the antinodes.

@elliotskunk

5 жыл бұрын

misunderstoof it g. It holds most of its energy because it is being held at two points, so the wave is not progressing anywhere. But, the particles in the wave are vibrating. This trasnfers vibrations to the air, causing sound

@mridulasharma1480

4 жыл бұрын

@@elliotskunk thank you so so so much. I was dying for an answer to my question......

Your videos are good but i think u need to make your videos a bit slower. If u could do your videos in the style of mygcsescience that would be alot better instead of just doing revision videos...

@PhysicsOnline

8 жыл бұрын

+Nav Raja I understad what you mean - they can go quite fast especially when there is a lot of new information to take on board and I take my time a bit more with some of my more recent videos. It is worth pausing and rewinding these videos when it does get to a tricky part.

@navraja3167

8 жыл бұрын

+A Level Physics Online i REALLY appreciate you replying to my comment. I have a question? If i didnt look at the textbook but watched your videos would that be enough for me to get a good grade in physics? I understand i will have to read from the text book some what...but what if i mostly used my time to revise from your videos

@PhysicsOnline

8 жыл бұрын

You've got to do both. These videos will help explain the topics but you need to see the information from more than one source, and with worked examples and questions that you set yourself to complete.

@HasanR99

8 жыл бұрын

+A Level Physics Online Hi, at 0:56 you say the two progressive waves will have the same phase difference? It was my understanding that the two waves should be in antiphase in order for stationary waves to occur?

@theriddler482

2 жыл бұрын

@@PhysicsOnline dont listen to this guy. Keep the videos short and snappy. Nothing worse than revising the night before the exam scrolling through 40 minute videos to get one equation....

hi

negawatt