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\nTransverse & Longitudinal Waves | Waves | Physics | FuseSchool\n

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\nTransverse & Longitudinal Waves | Waves | Physics | FuseSchool Waves transfer energy from one place to another. You should already know how to describe them in terms of frequency, wavelength and amplitude. In this video we’re going...\nTransverse & Longitudinal Waves | Waves | Physics | FuseSchool Waves transfer energy from one place to another. You should already know how to describe them in terms of frequency, wavelength and amplitude. In this video we’re going to look at the two ways they can be classified. Waves are produced as a result of vibrations and can be classified as transverse or longitudinal. Whether they are transverse or longitudinal depends upon how the particles are made to vibrate as the energy passes. Let’s look at longitudinal first. This is where the particles vibrate parallel to the direction in which the wave of energy is travelling. Notice that the ends of the slinky don’t ever leave the hands holding them. It’s only the energy that travels. The places where the coils, or particles, are bunched together are called compressions. Where they are furthest apart are called rarefactions. An example of longitudinal waves is sound. When a drum is struck, the drum skin vibrates, which causes the air particles next to it to vibrate. This causes the next air particle to vibrate, then the next, and so on, until the vibration reaches the ear causing the eardrum to vibrate. The vibrating air spreads away from the source, creating a sound wave. Let’s look at the other type of wave: transverse waves. The hand moves up and down, as does the slinky. But the wave itself moves from left to right. So the particles vibrate at 90 degrees to the direction that the energy is moving. We can simply think of it as, in longitudinal waves the hand pulses horizontally (pushing and pulling) and the wave (energy) also moves horizontally (back and forward). Whereas in transverse waves, the hand moves up and down but the wave (energy) still moves horizontally. Again - the ends of the slinky never leave the hands holding it. It’s just the energy that moves along. Transverse waves are usually used to show the wavelength and amplitude. Pause the video and see if you can remember how to label the amplitude and wavelength on the diagram... The waves on the surface of water are transverse waves; they make the water surface go up and down. All types of electromagnetic waves, like visible light, are also transverse waves. So, now you should be able to describe the differences between transverse waves and longitudinal waves. Remember it is the energy and not the slinky itself that travels. CREDITS Animation & Design: Waldi Apollis Narration: Ian Horsewell Script: Leanne Hawthorne SUPPORT US ON PATREON SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Find all of our Chemistry videos here Find all of our Biology videos here Find all of our Physics videos here Find all of our Maths videos here Instagram Facebook Twitter Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us Befriend us This is an Open Educational Resource. If you would like to use the video, please contact us: info@fuseschool.org\n
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2019
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