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correct answer on the space provided before each number.
1. What kind of wave is very dangerous but has been used to kill cancer cells? A. gamma ray B. infrared C. radio wave D, visible light
2. How many of the EM waves are visible A. none of 7 EM wave B. most of it C. all of EM waves D. one out of 7 EM waves
3. Which kind of wave causes the fluorescent chemicals to glow in sunlight? A. gamma rays B, microwave C. ultraviolet D. visible light
4. Which EM waves are emitted by stars and some radioactive substances? A. gamma rays B. microwave C. radio waves D. X-ray
5. In an infrared camera, what color indicates warmer temperature? A. blue B. green C. violet D. yellow
6. What type of EM waves is used in RADAR? A. infrared B. microwaves C. radio waves D. ultraviolet rays
7. Which type of x-ray can penetrate even through metals? A. dental x-ray B. long wavelength x-ray C. regular x-ray D. short wavelength x-ray
8. Which of the EM wave makes use of artificial lighting? A. gamma rays B. infrared C. visible spectrum D. X-ray
9. What EM wave make cellular telephone transmits and receives signals? A. gamma rays B. microwave C. radio wave D, visible light
10. Which kind of wave is use in night vision goggles? B. infrared C, microwave A. gamma rays D. visible light
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