1) Which of the following has the longest wavelength? a) Radio wave b) Microwave c) Infrared d) X ray 2) Which electromagnetic wave has the shortest wavelength and highest frequency? a) Radio wave b) Gamma ray c) Infrared d) Ultraviolet 3) Which of the following examples of EM waves arranged correctly? a) Radiowave, Infrared, Ultraviolet b) Gamma ray, Visible light, Xray c) Xray, Gamma ray, Radiowave d) Gamma ray, Ultraviolet, Xray 4) What is an electromagnetic wave that can be seen by our naked eye? a) Infrared b) Microwave c) Radiowave d) Visible light 5) Which of the following has frequencies higher than ultraviolet rays? a) Visible light b) Infrared c) X rays d) Radiowave 6) George mentions that infrared radiation can be used to take special pictures called thermographs. "Graph" means image. What can you infer about the prefix "thermo"? a) It means "light" b) It means "heat" c) It means "energy" d) It means "radio" 7) What might happen if the ozone layer did not block the sun's ultraviolet rays? a) Humans would be able to see in the ultraviolet range of the EM spectrum b) The surface of the Earth would be much hotter c) Devices that use electromagnetic radiation would no longer work d) Rates of skin cancer would skyrocket 8) Astronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices? a) They send radio broadcasts out to distant stars and planets b) They are less powerful than optical telescopes c) They pick up the radio waves emitted by stars d) They can detect ultraviolet radiation 9) Which word correctly describes gamma rays? a) weak b) visible c) destructive d) harmless 10) What do all forms of electromagnetic radiation have in common? a) their strength b) their speed c) their wavelength d) their frequency
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Science 10, 2nd Quarter - Week 1-2, (Electromagnetic Spectrum)
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Nikkokarlo
10th Grade
Physics
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