Do the ears have a built-in protection against loud sounds? New research finds that the ears may be able to turn down the volume to avoid damage. [12:28]

The shape and nature of the cosine wave are introduced here. This lesson [1:36] is 4 of 7 in the series titled "Cosine Wave."

In the following video Paul Andersen explains how the amplitude of a wave is a measure of the energy of the wave. He gives several examples of wave amplitude and shows you how to calculate the wave of a transverse and longitudinal wave....

In the following video Paul Andersen explains how a sine or cosine wave can describe the position of the wave based on wavelength or wave period. A wave function can the position of a wave as a function or the amplitude and wavelength or...

This lesson explain how to write the equations for sine and cosine functions, based on their transformations. It is 3 of 7 in the series titled "Writing the Equation for Transformed Sine and Cosine."

Video lecture explores how to figure out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. [9:44]

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

Visualizing changes in amplitude and period for a cosine function

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...

This video shows how to determine the amplitude and period of a trigonometric function. [8:20]

Understanding how the amplitude and period changes as coefficients change.

A video looking at the properties of periodic waves, including amplitude, period, frequency, and wavelength. [14:26]

Figuring out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. [9:44]

The shape and nature of the cosine wave are introduced here. This lesson [2:37] is 2 of 7 in the series titled "Cosine Wave."

The shape and nature of the cosine wave are introduced here. This lesson [3:51] is 6 of 7 in the series titled "Cosine Wave."

The shape and nature of the cosine wave are introduced here. This lesson [4:32] is 7 of 7 in the series titled "Cosine Wave."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 2 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 4 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 5 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 6 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 7 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

This lesson demonstrates how the sine and cosine waves are shifted horizontally. It is 1 of 7 in the series titled "Shifting the Graph of Sine and Cosine."

The shape and nature of the sine wave are introduced here. This lesson is 2 of 7 in the series titled "Sine Wave."

The shape and nature of the sine wave are introduced here. This lesson is 4 of 7 in the series titled "Sine Wave."