GCSE Physics (9-1) - GCSE Physics - Terminal Velocity - What Affects Air Resistance | Resultant Force & Acceleration

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The concept of terminal velocity. * Definition as the constant velocity reached by a falling object when forces are balanced. 2. Forces acting on a falling object. * The constant downward force of weight due to gravity. * The variable upward force of air resistance (drag). 3. The stages of reaching terminal velocity. * Initial acceleration when weight is greater than air resistance. * How increasing velocity leads to increased air resistance. * The point at which air resistance equals weight, resulting in zero resultant force and no acceleration. 4. Representation on a velocity-time graph. * How the gradient of the graph changes as acceleration decreases. * The graph becoming horizontal when terminal velocity is reached. 5. How a parachute affects terminal velocity. * The effect of increasing surface area on air resistance. * How opening a parachute causes deceleration and leads to a new, lower terminal velocity. *** EXAM BOARD SPECIFIC INFO *** AQA - Only need to know the details if you're doing triple (separate), otherwise you just need to know the general idea of terminal velocity IGCSE Edexcel - Everything is relevant to your course! Edexcel - Not in you course OCR 21st Century - Not in course OCR Gateway - Only relevant for triple (separate) and higher tier. *** CHAPTERS *** 0:00 Introduction 0:35 Forces on a Stationary Object 1:36 Introducing Air Resistance 3:37 Increasing Velocity and Resultant Force 4:32 Reaching Terminal Velocity 5:10 Opening a Parachute and a New Terminal Velocity *** 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