1) What is the electromagnetic spectrum? a) A spectrum of waves with different heights. b) A spectrum of waves with different frequencies and identical wavelengths. c) A spectrum of waves with different frequencies and wavelengths. d) A spectrum of visible light. 2) Which of these types of waves is not part of the electromagnetic spectrum? a) Radio b) Sound c) Microwave d) Infra-Red e) Ultraviolet f) X-Ray 3) Which wave on the electromagnetic spectrum has the highest frequency and the shortest wavelength? a) radiowaves b) microwaves c) ultra violet rays d) gamma rays 4) Which wave on the electromagnetic spectrum has the lowest frequency and longest wavelength? a) radiowaves b) microwaves c) infrared d) x-rays 5) Which waves are used for communication and broadcasting television? a) gamma rays b) radiowaves c) infrared d) microwaves 6) Which type of waves are used for satellite communication and cooking food? a) gamma rays b) visible light c) infrared d) microwaves 7) Which type of waves are used for photography and fibre optic cables? a) gamma rays b) visible light c) infrared d) ultraviolet rays 8) Which type of waves are used in electric heaters and toasters? a) gamma rays b) x-rays c) infrared d) ultraviolet rays 9) Which 3 types of waves are the most hazardous to the human body? a) radio waves, x-rays and visible light b) radio waves, x-rays and gamma rays c) radio waves, infrared and microwaves d) ultraviolet, x-rays and gamma rays 10) Which type of wave is a form of nuclear radiation? a) gamma b) x-ray c) infrared d) ultraviolet 11) Which type of wave is used to sterilise water? a) x-ray b) ultraviolet c) visible d) gamma 12) Which 2 waves can cause the mutation of genes? a) gamma rays and microwaves b) x-rays and radio waves c) x-rays and gamma rays d) x-rays and visible light

The Electromagnetic Spectrum

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