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Quarter 2, Week 1 and 2 Direction: Read each item carefully and identify if the statement describes RADIO WAVE, MICROWAVE, INFRARED, VISIBLE LIGHT, ULTRAVIOLET LIGHT, X-RAY or GAMMA RAY. ________________1. It has the longest wavelength in the EM Spectrum. ________________2. It is used in TV broadcasting. ________________3. It can penetrate the atmosphere of the earth. ________________4. It is used in satellite communications, radar, television transmission and cooking. ________________5. It lies beyond the red end of the visible light. __________________6. Some night-vision goggles use it. ________________7. When white light passes through a prism, it is separated into its constituent colors: the red, orange, yellow, green, blue, indigo and violet; it describes a/an? ________________8. It lies just beyond the violet end of the visible spectrum. ________________9. It is used in sterilizing water from drinking fountains. ________________10. It is used by banks to check the signature on a passbook. ________________11. It is of shorter wavelength but carries higher energy than the UV. ________________12. It is useful in diagnosing bone fractures and tumors. ________________13. It lies at the other end of the electromagnetic spectrum. ________________14. It has the shortest wavelength and highest frequency. ________________15. It is used to treat cancer through the process called radiotherapy.​

Sagot :

Answer:

Radio: Your radio captures radio waves emitted by radio stations, bringing your favorite tunes. Radio waves are also emitted by stars and gases in space.

Microwave: Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies.

Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.

Visible: Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.

Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.

X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.

Gamma ray: Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.

Explanation: