David defines the terms amplitude and period for simple harmonic motion and shows how to find them on a graph.

How to find the amplitude, period, frequency, and wavelength for a sound wave. Created by David SantoPietro.

You don't need to. You can just look at the equation and see the amplitude and period from there. Like if you have y=3sin (πx), you can see that the amplitude is 3, and you can just divide 2pi by pi to see …

Review the basic features of sinusoidal functions: midline, amplitude, and period.

Amplitude can be measured rather easily in pixels. In the case of a window 200 pixels wide, we would oscillate from the center 100 pixels to the right and 100 pixels to the left.

Usually, if a grid is not present, some sort of measurements is on the object in the shape of distances, say 1cm or 3cm on a length or a width that you can use. So do not worry about that, you can and will …

To be specific, amplitude is defined to be the magnitude of the displacement from the equilibrium center line to the top of a crest. Since the amplitude is a magnitude (and therefore positive by definition), …

Explore how sound waves travel as compression waves through solids, liquids, and gases, and analyze how amplitude and frequency relate to loudness and pitch. Investigate how the speed of sound …

Introduction to radians The unit circle definition of sine, cosine, & tangent The graphs of sine, cosine, & tangent Basic trigonometric identities Trigonometric values of special angles Pythagorean identity …

Below is the graph of a trigonometric function. It intersects its midline at (2 3 π, 1.2) , and it has a minimum point at (4 3 π, 3.4) . What is the amplitude of the function?