Introduction to Waves
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- čas přidán 16. 07. 2024
- An introduction to #MechanicalWaves which are defined and demonstrated. The fact that the medium is not displaced is demonstrated. Both #TransverseWaves and #LongitudinalWaves are also defined and demonstrated. Want Lecture Notes? www.flippingphysics.com/waves...
This is an AP Physics 1 Topic.
0:00 Intro
0:07 Mechanical wave definition and demonstrations
2:19 Did the medium move from one place to another?
3:12 A wave is energy moving through a medium
4:27 Demonstrating and defining a transverse wave
5:26 Demonstrating and defining a longitudinal wave
Next Video: Understanding Longitudinal and Transverse Waves, Wavelength, and Period using Graphs
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Thank you to Kristie Webb for transcribing the English subtitles of this video.
Thank goodness I found your channel. I have searched for someone who can explain waves in a way that I can actually understand and retain the information. Thank you so much. You’re an excellent teacher 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻❤️
So glad to help you learn!
hey 👺😺
Great video! Thank you for doing all of this work to help my students understand waves better.
You are welcome! Glad to help your students learn.
This is the perfect introductory Waves video!
hey dude great job, keep it up!! we need more guys like you!
Love it! Clear explanations with great visuals. And the expressions on the students' faces are priceless. Well done. Keep it up!
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You Indeed are and excellent Teacher ,You need more recognition!!Also I'd watched more than 5 of your videos today all of then amazing
Thank you!!!!!!! I’m just starting waves in school
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You are welcome.
ธัญลักษณ์ คำดี เลขที่17
Hello, I'm a student from Thailand. Thanks for the lesson. Love u😚
To ครูเหนือ.
วิดีโอนี้จำแนกประเภทของ คลื่นกล (Mechanical wave)
แบ่งออกเป็น
-transverse wave
-longitudinal wave
Enjoyed !!!🎉
You remind me of Leonard from big bang theory
thank you sir 😘😘😘😘
Thanks. Earlier i just used to cram the meterial written in books. But your videos helped me imagine what actually physics is ! Thanks for your hardwork
Lots and lots of love from india 🇮🇳
Thanks for the love!
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You are welcome!
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visible light is a quantum field and wave is just approximation
Hmm maybe I'll take physics next semester and refer to this vid
Great video! Also, we can say that EM waves all transverse right?
1:04 what lessons? Please link me to the video
Hi, what about waves in the ocean? As you said only the energy moves, but then, what are tsunamis? I understand that regular waves might just be periodic moving up and down from equilibrium. But the tsunami moves so much further than the shore.
Thanks in advance
YOU ARE THE COOLEST THANK YOU SO MUCH
YOU ARE SO WELCOME
Iam from Pakistan province and belong to a desert area so I want to see your video demostrstion in my native voice over as they can easily understand physics because your videos are helpful
May you give permission of it
sir i have a lots of fun thanks for all videos and for free thankss
You are welcome!
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I am from the United States of America.
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That is what I am currently working on. flippingphysics.com/quality-control.html
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how can we understand which types of waves something is, longitudinal or transverse? For example sound waves, how did one know that it is longitudinal?
Good question. For sound and light, it comes from the theoretical basis for how the waves propagate.
For sound, it was Isaac Newton who tried to determine this. Air transmits changes in pressure a lot better than it transmits lateral shear forces. Solids can transmit transverse waves, but liquids and gasses can only transmit longitudinal waves due to lacking a capacity to carry shear loads like solids can. His contemporary, Robert Boyle had recently figured out the isothermal relationship between pressure and temperature. Newton predicted that such a relationship might govern the way sound transmits waves, and tried to use it to predict the speed of sound. He was on the right track, however, he was off by 20%, due to his incorrect assumption that sound waves were isothermal, and governed by P*V = constant. Laplace, who had updated information about the theory of ideal gasses, determined what Newton had missed, and why Newton had a 20% error. Laplace determined that an adiabatic process, where P*V^gamma = constant is the equation that applied instead. Since gamma for air = 1.4, the adiabatic index, and speed of sound is sqrt(gamma*R*T/M), you can see why not accounting for gamma would give a 20% errro.
For light, you can thank the team behind Maxwell's equations (Gauss, Faraday, Lenz, Ampere, & Maxwell), along with Heaviside, Hertz, and Poynting. From the differential forms Ampere's law and Faraday's law within this group of equations, you can combine them together to get the wave equation governed by transients in the electric and magnetic fields. The construction of radio transmitters also corroborates that EM waves are transverse, as the oscillation of current in the antenna is perpendicular to the transmission direction.
@@carultch thank you
So transverse waves are like gravitational waves right?
Gravitational waves are on the frontier of physics, so it is difficult to use them as an introductory example. It is hard to visualize what exactly is waving in a gravitational wave, and gathering empirical evidence is extremely difficult. From what I understand about gravitational waves, I would consider them transverse. I'd call them hyper-transverse, since it takes a dimension beyond the three spacial dimensions + time, to explain what direction the fabric of space-time is waving within. Think of it as waving in and out of existence.
You often see them depicted as z-direction transverse waves, propagating along 2-dimensional space in the x-y plane, but this is just a representation at reduced dimensions so the human mind can comprehend them
Damn corona got me missing school
I felt movement of inertia too easy which I found hard in class
Sir cover all the cbse syllabus topic then I Will call all indian to watch ur video
w vid!
wave transfers energy from one position to others through a medium but how it's gonna work in space because there is nothing but vacuum means no medium.Can anybody explain how it's gonna work in space.
There are two different types of waves, mechanical and electromagnetic. The first one are what you described. The second one though are waves which can tranfer energy without needing a medium. That is how the move through space.
HAHAHA! Thank you!
anyone from Ms. Wu's class??
nah fam
like goal 690
Bru