Name: ________________________________
Grade and Section: ______________________
PART I
Date: ________
Section: ______
QUIZ # _____
PRACTICAL APPLICATIONS OF ELECTROMAGNETIC WAVES
Directions: Read the following questions and write the letter of the correct answer.
1. What electromagnetic wave is used to diagnose bone fracture?
a. X-ray
b. Gamma rays
c. Visible spectrum
2. The acronym RADAR stands for?
a. Radio detecting and ranging
b. Radio detection and ranging
c. radio directing and ranging
3. Over exposure in this electromagnetic wave can produce skin rushes.
a. Visible spectrum
b. Infrared radiation
c. Ultraviolet radiation
4. Eyes of reptiles like snakes are very sensitive to what type of electromagnetic radiation?
a. Color spectrum
b. Visible Spectrum
c. Infrared radiation
5. Plants need this Electromagnetic wave in production of their own food.
a. Microwave
b. visible spectrum
c. Ultraviolet radiation
6. Which of the following devices uses Infrared?
a.Remote control
b. microwave oven
c. Radio
7. An electromagnetic wave use in Global Positioning System is ______________.
a. Radiowave
b. Microwave
c. Infrared
8. One of the applications of Gamma Rays is _________________.
a. detecting bone fracture
b. detecting security markings
c. sanitizing surgical instruments
9. What do you call the medical imaging technique that uses powerful magnets, computer and radio wave to make detailed pictures
inside your body?
a. GPS
b. MRI
c. Cooking
10. Why are microwaves used in satellite communication?
a. Because it can penetrate the Earth’s atmosphere
b. Because it cannot penetrate the Earth’s atmosphere
c. Because it has long wavelength
11. What process that uses gamma ray to treat tumors and cancer cells?
a. Sterilization
b. Disinfection
c. Radiotherapy
12. What electromagnetic wave is used in phototherapy?
a. Ultraviolet
b. Radio wave
c. Visible light
13. Sensitive documents such as credit card, bank notes and passports are protected by what electromagnetic waves?
a. X-ray
b. Gamma ray
c. Ultraviolet
14. Vitamins are essential to human body. Which vitamin is synthesize by the UV radiation?
a. Vitamin A
b. Vitamin C
c. Vitamin D
15. Ultraviolet, X-ray and Gamma ray has the ability to penetrate objects, kills bacteria and treat tumor and cancer cells, respectively.
What property do they have in common?
a. Because it has non-ionizing energy
b. Because it has ionizing energy
c. Because it has long wavelength
16. Which of the following uses an X-ray?
a. Cooking
b. Satellite communication
c. Diagnosing bone fracture
17. Night vision goggle is used by military to target their enemies. What electromagnetic wave is used by night vision goggle?
a. Gamma ray
b. Infrared
c. Radio wave
18. Surgical instruments are essential to medical field. Which electromagnetic wave is used in sterilization of surgical instruments?
a. Visible light
b. Gamma ray
c. X-ray
19. Which pair of electromagnetic waves are used in communication?
a. X-ray and gamma ray b. radio wave and microwave
c. UV and infrared
20. What electromagnetic wave makes your skin tan when exposed for a long period of time?
a. Infrared
b. Ultraviolet
c. Microwave
21. Which of the following do not use ultraviolet radiation?
a. Security markings
b. Photography
c. RADAR
22. Which of the following is not an application of visible lights?
a. Bulb
b. Cellphone screen
c. Security markings
23. Colors in the infrared images depends on _________________
a. Amplitude
b. Temperature
c. Wavelength
24. All of the following are dangerous waves when taken by the body in large amounts EXCEPT one. Which is it?
A. Radio wave
b. X-ray
c. Gamma ray
25. Which of the following do not use radio wave?
a. Phototherapy
b. MRI
c. GPS
PART II
Direction: Enumerate the following
1-3. Practical applications of radio wave
4-6. Practical applications of microwave
7-10. Sources of infrared
11-13. Practical applications of infrared
14-16. Practical applications of visible light
17-20. Practical applications of ultraviolet
21-23. Practical applications of x-ray
24-25. Practical applications of gamma ray