Electromagnetic Spectrum 0.0 / 5 ? PhysicsWavesIGCSEEdexcel Created by: abby_edmonstoneCreated on: 08-02-20 09:46 What is the elecrtomagnetic spectrum? Describes the entire range of light that exists. 1 of 9 What are radio waves? The lowest frequency waves in the spectrum. Used for communication and can be miles in length. 2 of 9 What are infrared waves? Lower-middle range frequencies. Size ranges from a few millimetres to microscopic length. 3 of 9 What are visible light rays? They allow you to see the world around. Humans can see waves between 400nm--700nm. Waves between 492nm & 577nm can be rejected. 4 of 9 What are microwaves? Data & heat waves. Second lowest frequency. Can be measure from a few cm up to a foot. 5 of 9 What are ultraviolet waves? Energetic light. They cause sunburn and can cause cancer in living organisms. 10nm to 400nm. 6 of 9 What are x-rays? Penetrating radiation. Extremely high energy. Used to view bone structure within the body. Between 0.03nm and 3nm 7 of 9 What are gamma waves? Nuclear energy. Highest frequency. Will measure on the subatomic level. Can pass through the empty space within an atom. Can destroy living cells. 8 of 9 List all the waves in hte electromagnetic spectrum in order of frequency. Radiowaves. Microwaves. Infrared waves. Visible light rays. Ultraviolet waves. X-rays. Gamma waves. 9 of 9
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