GCSE Physics - Sound Waves and Hearing

⭐️ https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. What are sound waves are. 2. How sound travels through materials. 3. Sound wave properties across different media. * Frequency remains constant when sound changes medium. * Wavelength changes proportionally with speed. * Sound can be refracted, reflected, and absorbed. 4. How human hearing works. * Anatomy of the ear. * The process of converting sound vibrations into electrical signals for the brain. * Interpretation of frequency and intensity. 5. Human hearing range. *** EXAM BOARD INFO *** AQA - Separate/triple science and higher tier only IGCSE Edexcel - Not really in your course (apart from the fact that human hearing is 20-20,000 Hz) Edexcel - Separate/triple science and higher tier only OCR 21st Century - Separate/triple science and higher tier only OCR Gateway - Separate/triple science and higher tier only *** CHAPTERS *** 0:00 Introduction 0:15 What are Sound Waves? 0:51 How Sound Travels Through Solids 1:17 Sound Transmission and Speed in Different Media 1:49 Sound Wave Properties When Changing Media 2:38 Refraction, Reflection & Absorption 3:01 How Human Hearing Works 4:21 Human Hearing Range *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6 https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU #GCSE #Physics #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE #IB #AP