Unit WS Activity 4 In-Class Movie To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. UWS A4 Movie 1: Tuning fork vibrations UWS A4 Movie 1: Tuning fork vibrations Original video (by Dan Russell):https://youtu.be/pANIvSh2r2A   Next Gen PET Student Resources Home Page Copyright © 2017 Next Gen PET