Wave properties | Middle school physics | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/ms-physics Want to explore more? Check out the full middle school physics playlist here: https://www.youtube.com/playlist?list=PLSQl0a2vh4HC-daPugvP8kL_zuE3u_3Zr A wave is a disturbance that travels across space. Waves transfer energy, not matter. A wave causes a change in some equilibrium level as it passes by. Waves that have a repeating pattern are called periodic waves. The frequency of a periodic wave is how many wave cycles are generated in some amount of time. Wavelength is the distance from the beginning of one wave cycle to the beginning of the next cycle. Amplitude is the maximum change from equilibrium caused by a wave. Sections: 00:00 - What is a wave? 01:51 - Frequency 03:54 - Wavelength 05:33 - Amplitude 06:27 - Comparing two waves (review) ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc Waves intro (https://phet.colorado.edu/en/simulations/waves-intro) by PhET Interactive Simulations, University of Colorado Boulder, CC BY 4.0