1) How many waves are in the electromagnetic spectrum? a) 2 b) 5 c) 7 2) What is the highest frequency wave? a) radiowave b) gamma c) X ray 3) What is the most dangerous wave (could cause cancer?) a) gamma b) X ray c) light 4) What wave is released from hot objects a) light b) infra-red c) gamma 5) What is the correct range of wavelengths in visible light? a) 350-650nm b) 720-920nm c) 200-400nm 6) At what speed do electromagnetic waves travel a) speed of sound b) speed of light c) speed of a cheetah 7) What wave can help to cook food? a) microwave b) radiowave c) X-ray 8) What wave can be used in detecting broken bones? a) light b) X ray c) microwaves 9) what wave has the longest wavelength? a) gamma b) microwave c) radiowave 10) what is the correct order of the waves? a) radiowave, gamma, X ray, visible, UV, microwave, infra-red b) radiowave, microwave, infra-red, visible, gamma, X ray, UV c) radiowave, microwave, infra-red, visible, UV, X ray, gamma 11) what do electromagnetic waves transfer a) energy b) matter c) electricity 12) what can electromagnetic waves do that sound waves cannot do? a) travel through a vacuum/space b) travel through walls c) travel through the body 13) What type of wave are electromagnetic waves a) Mexican b) Longitudinal c) Transverse 14) What happens to the frequency of an electromagnetic wave when the wavelength decreases? a) decreases b) increases c) stays the same

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