1) How many EM 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) infrared c) visiable light d) microwaves 4) Which of the following has 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 shortest wavelength b) they are ionizing 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) wavelength is related to frequency a) true b) false c) not always 15) What can split white light into its component colors? a) Cellphone b) Prism c) Protractor d) Calculator 16) In a vacuum, all electromagnetic waves have the same _____________. a) Frequency b) Speed c) Wavelength d) Amplitude 17) Which of the following is the correct sequence of highest to lowest energy? a) X rays, Visible light, Microwave b) Radio wave, Infrared, Gamma rays c) Microwave, Infrared, Radio wave d) Ultraviolet, Gamma rays, X rays 18) Which of the following is the aspects that EM waves differ from each other? a) wavelength and speed b) Speed and energy c) Frequency and energy d) Frequency and wavelength 19) What is the relationship that wavelength and frequency has? a) Inversely b) Directly c) Complicated d) No connection 20) What is X ray's approximate scale of wavelength? a) Molecules b) Atoms c) Building d) Humans

Electromagnetic Spectrum Quiz

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