Wave Pulse on a Spring
![Someone whipping a spring up and down](/media/libraries/college-of-science-and-engineering/physics/images/demo-images/wavepulseonaspring.jpg)
PIRA 3B10.10
A long spring is used to show wave pulses. One end of the spring can be attached to a fixed point and wave pulses shown. To show waves moving through each other or interference, have a student hold the other end of the spring and make up pulses while the instructor makes either an up or a down pulse, depending on what is desired to be shown.