Science Subject

1. The phase "beyond light" means?

Directions: Read each item carefully. Encircle the letter of the best answe 1. The waves that are created as a result of vibrations between an electric field and a magnetic field is called A. Electromagnetic waves C. Sound waves B. Mechanical waves D. Water waves 2. What is/are used to determine the energy of an electromagnetic wave? A. Radars and lasers IT . B. The speed of the wave C. The Planck's constant and the frequency of a wave D. The wavelength of and frequency of a wave 3. When x-ray radiation and infrared radiation are travelling in a vacuum, they have the same A. frequency B. period C. speed D. wavelength 4. Frequency is measured in units of A. electron volt B. Hertz C. meter D. second 5. Who contributed in developing equations showing the relationship of electricity and magnetism? A. Ampere B. Hertz C. Maxwell D. Oersted 6. Which of the following is in correct order from longest to shortest wavelength? A. Microwave, x-ray, visible light C. Radio waves, visible light, infrared B. Microwave, radio waves, infrared D. Radio waves, infrared, visible light 7. What is the speed of the wave if a wave has frequency of 60 Hz and a wavelength of 10 m? A. 4 mis B. 75 m/s C. 600 m/s D. 900 m/s 8. What is the frequency of light waves with wavelength of 4 x 10- m? A. 6 x 10-7 Hz B. 3 x 108 Hz C. 7.5 x 1013 Hz D. 1.2 x 1015 Hz 9. Orange light has a frequency of 5.0 x 1014 hertz in a vacuum. What is the wavelength of this light? A. 1.5 x 1023 m B. 1.7 x 106 m C. 6.0 x 10-7m D. 2.0 x 10-14m 10. What is the energy of a photon with a frequency of 6. 165 x1014 Hz? A. 1.6 eV B. 1.7 eV C. 2.6 eV 11. The phrase "beyond light" means D. 4.5 eV A. electromagnetic spectrum B. metalight C. ultraspectrum D. ultraviolet12. Which has the highest energy among the electromagnetic waves? A. Gamma ray B. Ultraviolet radiation C. Visible light D. X-ray 13. Which color of visible light has the longest wavelength? C. Violet D. Yellow A. Green B. Red 14. Which electromagnetic wave carries the lowest energy than others? C. UV radiation D. Visible light A. Microwaves B. Radio waves 15. It has highest frequency among electromagnetic waves. B. Ultraviolet light C. Visible light " D. X-ray A. Gammay ray 16. Which order of colors is from longest to shortest wavelength? A. BIV G ROY B. GIV R YOB C. ROY G BIV D. VIB G YOR 17. If a wave has a longest wavelength , it will have a A. highest amplitude C. lowest amplitude B. high energy D. lowest energy 18. Which of the following colors are produced when all colors are reflected? A. Black B. Blue C. Red D. White 19. What happens when all the colors are reflected except blue? A. Blue light appears. C. White light is reflected. B. Blue light is absorbed D. White light is absorbed. 20. Which of the following statements describes visible light? A. Visible light is not real. B. Visible light is not harmful to human. C. Visible light is highly radioactive and should be handled carefully D. Visible light at high concentrations can cause burns, blindness, and indirect DNA damage but at low levels is harmless 21. Which type of radio waves are used to broadcast FM radio? A. HF B. LF C. UHF D. VHF 22. In radiobroadcasting, FM stands for A. focal mode C. frequency mode B. focal modulation D. frequency modulation 23. The low frequency band of radio waves in the electromagnetic wave is used as in A. Commercial FM radio C. Long Distance Communication B. Cellular phone communication D. Television 24. On FM broadcast, what remains constant? A. The amplitude C. The music B. The frequency D. The speech 25. Which of the following are radio waves not used for? A. Blenders B. Telephone C. Television D. Wifi 26. Optical mechanical scanner is used in which type of electromagnetic waves? A. Cosmic rays B. Thermal Infrared Radiation C. Radio waves D. X-rays 27. Which of the following types of waves can give us suntans and sunburns? A. Infrared radiation B. Radio Waves C. Ultraviolet Radiation D. X-rays 28. Which of the following wave is not employed in case of remote sensing? A. Infrared ray B. Radio wave C. Visible ray D. X-ray29. The following are example of some useful applications of Infrared radiation EXCEPT: A. Infrared radiation can be used as a heating source. B. Infrared scanners are used to show the temperature variation of the body. C. Infrared remote controls are used in TV's video , cassette recorders, and other electronic appliances D. Infrared radiation are also ideal for reducing the cellulite on the body, wrinkles, and fine lines on the face. 30. In what ways X- radiation can be harmful to human being? A. Overexposure to x-rays can cause HIV B. Overexposure to x-rays causes diabetes C. Overexposure to x-rays causes blindness. D. Overexposure to x-rays can cause cancer. 31. An electromagnetic wave that is used to check bone fracture. A. Infrared B. Microwave C. Ultraviolet D. X-ray 32. It is used in industries to detect cracks in metals and to sterilize equipment and commercial products A. Gamma Rays B. Microwave C. Ultraviolet D. X-ray 33. Laser is an acronym for A. Light Amplification by Stimulated Emission of Radiation B. Light Amplification by Stimulated Emulsion of Reaction C. Light Amplification by Stimulus Emitted Reaction D. Light Amplifying Stimulated Emission Radiation 34. This is used in forensic investigations at crime scenes, in procedures like searching for traces of blood and other body fluids, fingerprints, and footprints A. Gamma Rays B. Microwave C. UV lights D. Visible light 35. Photographs made with X rays are known as A. Gamma-graphs B. Radiographs C. Scanned photos D. X-graphs 36. An electromagnetic wave which is used in traffic lights, commercial displays, car headlights, and tail lights A. Gamma Rays B. Microwave C. UV lights D. Visible light 37. The following are uses of gamma rays EXCEPT: A. Eradicates pests like fruit flies. B. Used in the refining, mining, chemical, food, soaps, and detergents. C. Kills bacteria, insects and parasites that can cause foodborne diseases. D. Essentially used for transportation security inspections of cargo, luggage and passengers 38. Is visible light dangerous? A. No, Visible light cannot harm you. B. No, this is because visible light isn't real. C. Yes, visible light at high concentrations can cause burns, blindness, and indirect DNA damage but at low levels is harmless. D. Yes, visible light is highly radioactive and should be handled carefully. Visible light when in contact with human skin can cause aerial skin cancer 39. Which of the following disease can be detected by X-Ray? A. Bladder infection B. Diarrhea C. Fever D. Pneumonia 40. Which criminal offense can be stopped with the help of UV light detection technology? A. Counterfeiting C. Perjury B. Graft and Corruption D. Speeding in school zone