Waves 3.0 / 5 based on 3 ratings ? PhysicsWaves and SoundIGCSEEdexcel Created by: EllieCreated on: 18-04-13 19:38 What does lambda equal? wavelength 1 of 23 What is the height of the waves? amplitude 2 of 23 What is the frequency? The amount of complete waves per second 3 of 23 What does 1 Herz equal? 1 wave/second 4 of 23 What does frequency equal? 1 over period 5 of 23 What does wave speed equal? frequency times wavelength 6 of 23 What waves are Transverse? light and EM waves 7 of 23 What waves are longitudinal? Sound and ultra sound 8 of 23 State in order the electromagnetic spectrum Radio waves, micro waves, infra red radiation, visible light, ultra violet, X-rays and gamma rays 9 of 23 What are radio waves used for? Communications 10 of 23 What is Infrared radiation used for? heaters and night vision 11 of 23 What are microwaves used for? Cooking and satellite tv 12 of 23 What is visible light used for? optical fibres, photography, phones and broadband 13 of 23 What is Ultraviolet light used for? fluorescent lamps 14 of 23 What are X-rays used for? seeing inside things 15 of 23 What are gamma rays used for? Sterilising food and medical equipment 16 of 23 What are the dangers of microwaves? Heating body tissue 17 of 23 What are the dangers of infra red radiation? skin burns 18 of 23 What are the dangers of ultra violet light? damage surface cells, blindness and skin cancer 19 of 23 What are the dangers of gamma rays? cell mutation, tissue damage and cancer 20 of 23 What are the dangers of X-rays? cell mutations 21 of 23 What does the angle of incidence equal? angle of reflection 22 of 23 What does Snells law say? refractive index = sin (i) over sin (r) 23 of 23
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