Khan Academy: Mechanical Waves and Sound: Decibel Scale

This video lecture will introduce the concepts of transverse and longitudinal waves. [13:02]

A video exploring standing waves. [14:18]

This video illustrates and explains how seismic waves function. These waves are broken down into two types: surface and body. Take a look into why waves help understand the structure of Earth. [8:38]

Explains how any type of wave can be refracted, and how this applies to seismic waves and to our understanding of the Earth's structure. [9:21]

Video lecture explores S-waves and P-waves. [8:38]

Turn it up! Sound scientists explore the decibel scale through an interactive that calculates movement up and down the scale. Part of a series of interactives that explore sounds and waves, the resource includes a help feature to support...

[Free Registration/Login may be required to access all resource tools.] By watching video clips, doing interactives, and reading text, students discover how mechanical waves transfer energy and how the waves require a medium to propagate...

Find out how tonicity is determined by ions that don't move across membranes and how it affects the movement of water. Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:02]

Explore how sound travels as waves with a straightforward lesson that explains the basics of waves in relation to sound. The presentation considers sound waves in both open and closed pipes and shows how to calculate wavelength and...

In this module, students investigate the properties and behavior of different types of waves.