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Ultrasound medical imaging | Mechanical waves and sound | Physics | Khan Academy



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You can actually use sound to create images of the inside of the body. Wild! Created by David SantoPietro.

Watch the next lesson: https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/standing-waves/v/standing-waves-in-tubes-part-1?utm_source=YT&utm_medium=Desc&utm_campaign=physics

Missed the previous lesson? https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/sound-topic/v/why-do-sounds-get-softer?utm_source=YT&utm_medium=Desc&utm_campaign=physics

Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We’ll start by looking at motion itself. Then, we’ll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you’ll need a solid understanding of algebra and a basic understanding of trigonometry.

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16 thoughts on “Ultrasound medical imaging | Mechanical waves and sound | Physics | Khan Academy
  1. Why after the first reflection of sound wave from the interface the sound waves continues to move further through the medium
    wheather the change in density was not for the second wave

  2. if that is the case using high f (which would result in low wave length) is better, does this mean the higher f the better image quality and people are using as high as possible of the f in practical?

  3. Don't I know THAT about patients. When I first became an EKG Technician, there were so many patients who DIDN'T want me giving them an EKG, because lots of them were worried about being electrocuted by it, it wasn't even funny.
    This one guy gave me such a third degree of questioning that his girlfriend suddenly said "You act like she's fittin' to KILL you."
    He mumbled a protest and she rolled her eyes.
    I had to bite my tongue to keep from laughing.

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