1) How many waves are in the electromagnetic spectrum a) 9 b) 7 c) 5 d) 8 2) All electromagnetic waves are a) longitudinal b) low frequency c) transverse d) high frequency 3) What type of wave is emmited by hot objects a) gamma b) infra red c) visiable light d) microwaves 4) What is the lowest frequency wave a) gamma b) radio c) microwave d) UV 5) Which electromagnetic wave is reflected by the Earths atmosphere a) radio b) ultra violet c) microwave d) X-rays 6) Which electromagnetic wave is used in night vision a) gamma rays b) visible light c) x rays d) infra red 7) Which of these is not a property of ALL the electromagnetic waves a) travel at the speed of light in a vacuum b) All penetrate living tissues c) all are transverse waves d) vibrate particles 8) The most penetrating wave is a) radio b) x ray c) gamma d) microwave 9) An ionising wave is a) visible light b) ultra violet c) x ray d) microwave 10) Which is used as protection from x rays a) sliver b) lead c) gold d) concrete 11) Which is not true about gamma rays a) they have the shotest wavelength b) they are ionising waves c) they cannot cause cancer d) they have the lowest frequency 12) Which radiation is used by snakes to find food a) x rays b) infrared c) visible light d) microwaves 13) Which is not true about about visible light a) it can cause cancer b) lasers are this c) it travels in straight lines d) it is used in optical fibres 14) wave length is related to frequency a) true b) false c) not always 15) Who discovered the electromagtic spectrum a) Darwin b) Herschel c) Lister d) Einstein

Electromagnetic Spectrum quiz

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