Science Radiation 0.0 / 5 ? PhysicsRadioactivityGCSEAQA Created by: Osc262Created on: 10-10-16 17:04 Which radiation is not dangerous from a distance? alpha - Gets absorbed by skin and paper 1 of 18 Which radiation travels as a wave? gamma 2 of 18 Which radiation can pass through paper? gamma and beta 3 of 18 which radiation is stopped by aluminium? beta 4 of 18 How ionising is alpha decay? Strongly rips off electrons 5 of 18 what are the characteristics of alpha particles? Big, heavy and slow moving. 6 of 18 How much are alpha particles effected by absorbtion? They are stopped quickly and have low penetration 7 of 18 How ionising is beta decay? moderate 8 of 18 what is a beta particle? An electron. Neutron turns into proton and electron is released 9 of 18 How ionising are gamma waves? not very 10 of 18 What are gamma waves? Very short wavelength electromagnetic waves 11 of 18 What are the characteristics of beta particles? Virtually no mass, charge of -1, fast moving 12 of 18 How are beta particles effected by absorbtion? They travel a long way in air 13 of 18 what are the characteristics of gamma waves? no mass, no charge 14 of 18 How are gamma waves effected by absorbtion? They aren't really- they travel far into materials. 15 of 18 If an atom is radioactive, where does the radiation come from? The nuclei 16 of 18 Definition of Ionising? enough energy to remove electrons 17 of 18 What are the main causes of radiation at in the modern world? Radon Gas from the ground and rocks and building materials. 18 of 18
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