Once students have finished watching the video, discuss the questions on the Longitudinal and Transverse Waves student sheet. Begin by having students use their student esheet to go to and watch the Introduction to Wave Models video.I show them two at a time because the first two questions are focused on labeling both types of waves, 3 & 4 are focused on using the wave equation and 5 & 6 are focused on qualitative relationships between wavelength and frequency. When the time is up, I show the answers up on the screen with two problems at a time.Where are we with the virus? Many asked what 'wave' we are. (WKBW) - As Western New York faces a surge in COVID-19 cases, we wanted to answer a few questions submitted by you.