P2- Radiation and Life OCR 21st century 0.0 / 5 ? PhysicsP2- Radiation and LifeGCSEOCR Created by: Liem Mao-TranCreated on: 22-03-16 20:43 What on the EM spectrum has the highest energy, frequency and smallest wavelength? Gamma rays 1 of 11 What on the EM spectrum has the lowest energy, frequency and biggest wavelength Radio waves 2 of 11 What is another term for electromagnetic radiation? Electromatic waves 3 of 11 What effects the temperature of an object? The frequency of thermal radiation emitted 4 of 11 What affects the intensity of the radiation? The distance from the source. 5 of 11 What is the ionising radiations on the EM spectrum? UV radiation, X-rays and Gamma rays 6 of 11 What can ionising radiation do? Ionising radiation can affect cells in the body by causing mutation which may lead to cancer 7 of 11 What is the greenhouse effect? Gases such as carbon dioxide keep the heat from the sun in the Earths atmosphere. 8 of 11 What protects people from UV radiation? The ozone layer. 9 of 11 What can microwaves be used for? Communication 10 of 11 What is an advantage of digital signals? They are easyer to put interupted signals into their original qualityt 11 of 11
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