Paul Andersen explains how waves interact when moving through one another. Unlike particles waves can interfere both constructively and destructively. The amount of interference is determined through the superposition principle and can...

Paul Andersen explains how traveling waves move through space and time. The reflection and interference of traveling waves can create standing waves which appear motionless. Examples of traveling waves in one and two dimensions are...

Paul Andersen explains how standing waves are created through the reflection and interference of traveling waves. Destructive interference creates areas of no movement called nodes. Constructive interference creates areas of maximum...

In this video Paul Andersen explains how the wavelength of a standing wave is determined by the boundary length and frequency of the wave. The fundamental frequency has a wavelength double the boundary length. Harmonics are built on the...

In the following video Paul Andersen explains how beats are created through interference of waves with similar frequencies. The changes in amplitude are caused by destructive and constructive interference. The frequency of beats is equal...

In the following video Paul Andersen explains how matter can act as a wave at the nanoscale. Louis de Broglie showed that the wavelength of matter can be calculated using the momentum of an object and Planck's constant. The...

In this video Paul Andersen explains how the location of matter can be determined at the nanoscale using the wave function. The absolute value of the wave function can be used to determine the probability of finding matter in a location....

Animation illustrates that seismic waves traveling away from an earthquake occur everywhere, not just at seismic stations. [0:21]

An animation which illustrates how the travel time of an earthquake is measured. What alters the velocity of the waves? [1:06]

Explains why S-waves will only travel in solids.

Convex Lenses

Discover waves and optics by learning about the Doppler effect formula for observed frequency. [10:13]

Learn about waves and optics by discovering the doppler effect formula when source is moving away. [9:18]

This animation from KET's distance learning physics course demonstrates the mathematical formula for a scientific law as it applies to light.

In the following video Paul Andersen explains how the wave speed measure the speed of a wave through a medium. The medium determines the speed of the wave. The velocity of the wave is equal to the product of the wavelength and the...

Waves are cool. The more we learn about waves, the more we learn about a lot of things in physics. Everything from earthquakes to music! Ropes can tell us a lot about how traveling waves work so, in this video episode of Crash Course...

Animation explores how 3 buildings engineered equally on different bedrock will react to an earthquake. [1:25]

In this animation, Dr. Geophysics compares seismic waves to ripples in water and helps explain how they are alike. He also guides you through the simple physics of potential energy and energy release. [1:47]

In this animation, Dr. Geophysics compares seismic waves to ripples in water and helps explain 4 significant differences. [1:48]

Understand the basics of how P and S waves create the seismic shadow zones. [1:48]

How are wave paths determined? Which wave paths are the fastest? Find out with the help of this brief video. [0:43]

A brief video will illustrate how a ping announces refracted seismic waves. [0:34]

A brief animation which illustrates how a horizontal seismograph works. A seismograph measures wave activity. [0:19]

This short clip will illustrate how a seismograph measures vertical motion in the Earth. [0:14]