GCSE Physics - Specific Latent Heat - Vaporisation & Fusion | Equation (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Latent heat and changes of state. * Why temperature remains constant during melting, boiling, freezing, and condensing. * Analysing heating and cooling curves (temperature-time graphs). 2. The definition of specific latent heat. * The energy required to change the state of 1 kg of a substance. 3. The two types of specific latent heat. * Specific latent heat of fusion (for melting and freezing). * Specific latent heat of vaporisation (for boiling and condensing). 4. The equation for specific latent heat. * Energy (E) = mass (m) × specific latent heat (l). 5. How to perform calculations using the specific latent heat equation. * A worked example calculating the energy required to boil a mass of water. *** EXAM BOARD SPECIFIC INFO *** Suitable for all GCSE courses but not IGCSE AQA - Everything is relevant to your course! IGCSE Edexcel - Not in your course Edexcel - Everything is relevant to your course! OCR 21st Century - Everything is relevant to your course! OCR Gateway - Everything is relevant to your course! *** CHAPTERS *** 0:00 Introduction to Specific Latent Heat 0:15 Recap: Internal Energy and Temperature 0:53 State Changes and Temperature Graphs (Heating Curve) 1:34 State Changes on a Cooling Curve 1:55 What is Latent Heat? 2:14 Defining Specific Latent Heat (SLH) 2:41 Specific Latent Heat of Vaporisation vs Fusion 3:12 Heating Water Example from Ice to Steam 5:00 Equation for Specific Latent Heat (E = m x l) 5:17 Specific Latent Heat Calculation Example *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe https://www.youtube.com/playlist?list=PLidqqIGKox7UTimdJ3eFcnt6xL9GUt2a6 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