GCSE Physics - Why Radiation is Harmful - Irradiation | Contamination (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. The difference between irradiation and radioactive contamination. Definition of irradiation as exposure to any type of radiation. Definition of contamination as the presence of unwanted radioactive particles on or in an object. 2. The factors that determine how harmful radiation is. The type of radiation (ionising vs non-ionising). How the location of the source (outside vs inside the body) changes the risk. The amount or dosage of radiation received. 3. How ionising radiation affects living cells. The ability of ionising radiation to damage DNA and cause mutations. The link between radiation exposure and the development of cancer. 4. Safety precautions for working with radioactive sources. Using protective gear and tools like tongs. Storing radioactive materials in lead-lined containers. ** CHAPTERS ** 0:00 Introduction to Irradiation and Contamination 0:20 What is Irradiation? 0:55 What is Radioactive Contamination? 1:31 Factors Determining How Harmful Radiation Is 1:52 Types of Radiation and Their Dangers 2:38 How the Location of a Radioactive Source Affects Harm 3:43 The Amount of Radiation (Dosage) 4:08 How to Minimise Irradiation and Avoid Contamination 4:37 Does Irradiation Make You Radioactive? ** PLAYLISTS **    • KS3 Biology      • KS3 Chemistry      • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #GCSE #Physics #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE