Physics: Year 10 Term 1: Atoms and Radiation 0.0 / 5 ? PhysicsRadioactivityGCSEAQA Created by: Charlotte HerondaleCreated on: 16-10-18 16:06 When was radioactivity discovered? (1) 1896 1 of 10 Who found the picture developed by radiation? (1) Henri Becquerel 2 of 10 Who investigated this phenomenon? (1) Marie Curie 3 of 10 What is the name of the device used to detect radioactivity? (2) Geiger counter / Geiger-Müller Tube 4 of 10 Name the 3 types of radiation (3) Alpha, beta and gamma 5 of 10 What material stops alpha (α)? (1) Paper 6 of 10 What material stops beta (β)? (1) 3mm aluminium 7 of 10 What material stops gamma (γ)? (1) Concrete / thick metal 8 of 10 Why do atoms emit radiation? (3) They are heavy and unstable so to become stable 9 of 10 What type of event is radioactive decay? (1) Random/unpredictable 10 of 10
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