GCSE Physics (9-1) - GCSE Physics - Liquid Pressure & Upthrust - Calculating Liquid Pressure | How it Varies With Depth

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Pressure in a Liquid * Sources of pressure from molecular collisions and the weight of the liquid. * How pressure varies with depth. 2. Calculating Pressure in a Liquid * The key factors: depth, liquid density, and gravitational field strength. * The equation for calculating pressure (P = hρg). * A worked example calculating the change in pressure for a diver. 3. Upthrust, Floating, and Sinking * An explanation of the upthrust force. * How the balance between an object's weight and its upthrust determines if it floats or sinks. * How an object's density relative to the liquid's density determines if it floats or sinks. *** EXAM BOARD SPECIFIC INFO *** AQA - Separate science (triple) and higher tier only IGCSE Edexcel - You don't need to know about upthrust but everything else in suitable for everyone Edexcel - Separate science (triple) and higher tier only OCR 21st Century - Separate science (triple) and higher tier only OCR Gateway - Separate science (triple) and higher tier only *** CHAPTERS *** 0:00 Introduction 0:23 What Causes Pressure in a Liquid? 1:00 Factors Affecting Liquid Pressure 1:30 The Equation for Pressure in a Liquid 1:54 Worked Example: Calculating Pressure Change 3:32 Why Objects Float or Sink: Upthrust 5:00 Density and Floating *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe 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