Wave Speed on a String - Tension Force, Intensity, Power, Amplitude, Frequency

Wave Speed on a String - Tension Force, Intensity, Power, Amplitude, Frequency - Inverse Square Law

Рет қаралды 257,785

7 жыл бұрын

This physics video tutorial explains how to calculate the wave speed / velocity on a stretch string given an applied tension and linear density of the wire. It also discusses the wave intensity as a function of source power and distance in addition to its relationship to the inverse square law. It covers topics such as period, frequency, and amplitude of a wave. This video contains plenty of examples and practice problems.
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Here is a list of topics:
1. Transverse and Longitudinal Waves
2. Intensity, Amplitude, and Frequency
3. Sound Waves - Compression vs Expansion / Rarefaction
4. High and Low Pressure Regions of Sound Waves
5. Water Waves and Waves on a String
6. Wave Speed on a Stretched Spring
7. Tension Force and Linear Density - Mass Per Unit Length
8. Energy in Wave Motion
9. Wave Intensity, Power, and Distance
10. Inverse Square Law - Intensity and Distance
11. Crest vs Trough of Sinusoidal Wave
12. Period, Frequency, Wavelength, Amplitude and Wave Velocity Calculations
13. Velocity and Tension Force of Spring
14. Principle of Superposition
15. Constructive vs Destructive Interference

Пікірлер: 69

@TheOrganicChemistryTutor 5 ай бұрын

Final Exams and Video Playlists: www.video-tutor.net/

@artiom_sml 6 ай бұрын

Thank you so much sir, my physics teacher just comes into the class, talks about his personal life, talks about his wife, and his car, and his past. Then gives out homework. You explained it to me much better than my teacher.

@averagestudent5222 6 ай бұрын

Your teacher is talking about the wave of his life

@cadehelbig2284 5 жыл бұрын

Velocity = Distance/Time 20:20 Intensity 20:30 power 25:30 change of intensity 29:10 Change of intensity with amplitude

@mr.lovell85 4 жыл бұрын

thanks saved me some time

@paul-juniorblack6151 4 жыл бұрын

Thank You

@jeremiahbaker7163 3 жыл бұрын

bless

@lol321f. 2 жыл бұрын

@ajnur4466 2 жыл бұрын

thanks

@tobypizot1255 6 жыл бұрын

yo, keep doing what youre doing. You explain really well and your voice is very calm and soothing

@napialex7539 7 жыл бұрын

best tutor saving my physics and calculus!

@harshmalik5524 2 жыл бұрын

youtube is full of genius educators including you ,,thanks a lot

@ObinnaOluwatimilehin 3 ай бұрын

I really don't know where i would be without you in this my university without you cause... Ur the reason I still have a perfect GPA

@ObinnaOluwatimilehin 3 ай бұрын

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@simbofekadu4304 4 жыл бұрын

I'm so glad I found such an amazing tutor especially physics in a simple English...subscribe and share is z least I cud do

@ellab2162 6 жыл бұрын

You are the best, thanks

@giemar8307 Жыл бұрын

Thank you Sir for all your videos... God Bless

@vjosaveselaj3788 3 жыл бұрын

You're better than every teacher I've ever had! Thank you!

@alfredgabana1097 2 жыл бұрын

I understand well the lesson i realy enjoy it

@dominiccirineo1587 9 ай бұрын

Thank you for your tutorials! You're a miracle child, lol And at 17:13, you calculated the Tension product with cm/s not m/s

@testpubg4515 6 жыл бұрын

Thanks so much!

@baatilekabeli5760 5 жыл бұрын

can you do more question involving strings and energy

@sheggtv6767 Жыл бұрын

You’re so good 🔥

@OndrejPopp 7 жыл бұрын

No comments yet? I have one, it is easier sometimes to calculate the ratio of squares as the ratio of their sides to the power of 2, so a^2/b^2 = (a/b)^2, so 30^2/15^2 = (30/15)^2 = (2)^2 = 4; goes a lot faster than 30^2/15^=900/225=4

@LudwigvanBeethoven2 5 жыл бұрын

Very informative thank you

@olaidekazeem1074 Жыл бұрын

God bless u more and more. u are so good 👍

@winterdawn 3 жыл бұрын

Great video - thank you! Does the inverse square law apply to a string as well? Intensity = power/surface area of sphere implies that I α r^2 would only work for waves radiating from a point source in 3D space (radial waves?); does a string count as well?

@pournamiboutique2301 2 жыл бұрын

yeah i guess

@davidf.4209 4 жыл бұрын

dude i love u.

@SabaAlshare 27 күн бұрын

you are my hero

@AdewaleAdemola-zx2oj Жыл бұрын

❤ you are so amazing

@IamKudos 3 жыл бұрын

Okay one question i have is when we cancel out the surface area and the cross sectional area at 49:18 . I mean the surface area of intensity should be the total surface area of all of the sides of the 3D rectangle and the cross sectional area is just one side though. I don't think they can be cancelled. Can someone help me with this please?

@gouravojha1353 6 жыл бұрын

awsome

@amahlentluko1428 3 жыл бұрын

Physics made easy. 👍

@user-1000yo_old.turtle 7 ай бұрын

Cannot thank you enough.

@victoriadeery2081 4 жыл бұрын

around 13:49 T= 2.5s (given) but solving f=distance/time=10m/2.5=4 & 1/4 = 0.25 so T does not equal .25s its 2.5s?

@AlfredJolly-ok2ro Ай бұрын

God bless you 🙏

@prajitkumar1745 2 жыл бұрын

In 20:32 does it have to be the surface area of the sphere? Or is it just an example. Please reply..

@kookskookie9395 Жыл бұрын

Just an example

@MichelleLee3333 4 жыл бұрын

You said in a previous video the top was the trough and the bottom was a crest....

@badagaladurgaprasad7069 3 жыл бұрын

Iam very impressive of ur numericals on acoustics, thank you ji🙏

@nellvincervantes3223 4 жыл бұрын

That tension is said to be horizontal component. Not the resultant tension.

@s_yed 6 жыл бұрын

Can you explain how to calcualate the speed of wave??

@hannanpirzada1175 5 жыл бұрын

V=(Lambda)x(Frequency). Lambda is the wavelength.

@marthaohenewaa6697 3 жыл бұрын

Please we need a video on Progressive wave with the two formulas and how to use them on a question

@zackgrey4472 3 жыл бұрын

Everywhere I look it has frequency by itself (not squared) when talking about change of intensity with amplitude or time averaged power, why is it squared in this example? (roughly around 50:00)

@petereziagor4604 3 жыл бұрын

You've got to watch the 3hrs video to see how that particular formula is derived You mean intensity = 2π^2.density.velocity. f^2.A^2

@petereziagor4604 3 жыл бұрын

All this other videos on wave are minors

@getvictored1737 5 ай бұрын

can someone explain the proportionate to symbol

@neko-dp9ni 3 жыл бұрын

I have a question sir, why is density not converted into m³? I mean it should be kg/m³ , why kg/m? thank you

@elliet7295 2 жыл бұрын

Linear density is not the same as fluid density and is expressed as mass per unit of distance

@Dannydefeato25 4 жыл бұрын

Could you please make a video where you focus more so based on theoretical questions? Or does anyone have any good recommendations ?

@joan_007 2 жыл бұрын

For theoretical physics, I don't know if you'd like it but check CRASH COURSE.

@aslam_9407 2 жыл бұрын

14:48

@aslam_9407 2 жыл бұрын

39:10

@ratulpegu3414 5 жыл бұрын

I don't understand how to solve these qeuetion......... Q. Consider ocean waves of amplitude 2m and wavelength 200m . Assuming the gravity to be the only active force , the power available per metre perpendicular to the propagation of the wave is....

@nellvincervantes3223 4 жыл бұрын

Ocean wave, means deep water. In this case cg = sqrt(gL/2pi) = sqrt(9.81*200/2pi) E = (1/16)rho*g*(2A)^2 E = (1/6)(1000)(9.81)(4) P = E*cg P = 173.35 kW/m