Cognito

KS3 Physics - Energy Resources

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Energy Transfer Chains * An explanation of how the sun is the primary source for most of Earth's energy resources. * How sunlight is converted into chemical energy through photosynthesis, leading to fossil fuels, biomass, and food. * How thermal energy from the sun creates wind and waves. * The direct conversion of sunlight into electricity via solar cells. 2. How Electricity is Generated * The general process of using an energy source to heat water, create steam, and spin a turbine connected to a generator. * The mechanism for wind and hydropower, which use kinetic energy to spin a turbine directly. * The direct conversion of light to electrical energy in solar cells, which does not require a turbine. 3. Renewable vs. Non-Renewable Energy * The definition of non-renewable energy resources (e.g., fossil fuels) and their disadvantages, such as pollution. * The definition of renewable energy resources (e.g., solar, wind, hydro, biofuels) and their disadvantages, such as unreliability. * A discussion on ways to reduce the consumption of fossil fuels. *** CHAPTERS *** 0:00 Introduction 0:25 Energy Transfer Chains 1:51 How Electricity is Generated 2:53 Renewable vs Non-Renewable Resources 4:18 Outro & Cognito Platform *** 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