GCSE Physics - Seismic Waves - P-waves & S-waves (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. Seismic Waves P-waves (Primary waves) are longitudinal and can travel through solids and liquids. S-waves (Secondary waves) are transverse and can only travel through solids. 2. Earth's Internal Structure How scientists use seismometers to detect waves and analyse their paths. The behaviour of seismic waves, including reflection and refraction, as they travel through different layers of the Earth. 3. Evidence from Seismic Waves How the paths of P-waves and S-waves provide evidence for the structure and state of the Earth's mantle and core. An explanation of S-wave and P-wave shadow zones and what they tell us about the liquid outer core. ** EXAM BOARD INFO ** AQA - Separate/triple science and higher tier only IGCSE Edexcel - Not in your course Edexcel - Don't need to know the details about how it was used to discover the internal structure of the earth OCR 21st Century - Don't need to know the details, but the general idea of using waves to discover internal structure of earth is helpful OCR Gateway - Not in your course ** CHAPTERS ** 0:00 What are Seismic Waves? 0:31 P-wave and S-wave Properties Explained 0:51 How Seismologists Study Earth's Structure 1:29 Reflection and Refraction of Seismic Waves 2:48 P-wave Path Through Earth's Layers 3:02 S-wave Path and the Liquid Outer Core 3:25 P-wave and S-wave Shadow Zones 3:59 Summary of Evidence from Seismic Waves ** PLAYLISTS **    • KS3 Biology      • KS3 Chemistry      • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #GCSE #Physics #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE