My channel has moved to a branded account! Check me out at The Flipped Guy, at https://www.youtube.com/channel/UCtbltzlVlMneodmLZzteFwg In this video, we discuss the key concepts about waves used for both IGCSE and A-Level physics (note that A-Level physics also requires a knowledge of phase difference, which isn't discussed here).
NOTE: There's an error towards the end, when I calculate the speed of a wave; my answer is out by a factor of 10!
