GCSE Physics - Life Cycle of Stars | How Stars are Formed & Destroyed (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The formation of a star from a nebula. * The role of gravity in pulling dust and gas together to form a protostar. * How increasing temperature and pressure leads to nuclear fusion, creating a main sequence star. 2. The main sequence star stage. * The stable period where the outward pressure from nuclear fusion balances the inward force of gravity. 3. The life cycle of a small or medium-sized star. * Evolution into a red giant when hydrogen fuel runs low. * The core collapses to form a white dwarf. * The final stage of cooling into a black dwarf. 4. The life cycle of a large star. * Evolution into a red supergiant. * The dramatic explosion of the star in a supernova. 5. The remnants of a large star after a supernova. * The formation of a dense neutron star. * The formation of a black hole if the star is exceptionally massive. *** EXAM BOARD SPECIFIC INFO *** AQA - Separate/triple science only IGCSE Edexcel - Everything is relevant to your course! Edexcel - Separate/triple science only OCR 21st Century - Separate/triple science only OCR Gateway - Separate/triple science only *** CHAPTERS *** 0:00 Introduction to the Life Cycle of Stars 0:12 Nebula and Protostar Formation 0:55 Nuclear Fusion and Main Sequence Stars 2:25 How a Star's Mass Determines its Life Cycle 2:57 Transition from Red Giant to White Dwarf and Black Dwarf 3:51 Formation of a Red Supergiant and Supernova 4:17 Formation of a Neutron Star or Black Hole *** 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