CAMARINES NORTE NATIONAL HIGH SCHOOL Daet, Camarines Norte Name: _____________________________________ Yr. & Section: _____________ SCIENCE 10 Module 1-4 Direction: Indicate whether the statement is TRUE or FALSE. Write your answer on the space provided. _______1. Electromagnetic wave is considered as longitudinal wave. _______2. EM waves do not require a medium to propagate. _______3. It is a disturbance in a field that carries energy and does not require a medium to travel. _______4. Michael Faraday formulated the principle behind electromagnetic induction. _______5. James Clark Maxwell contributed in developing equations showing the relationships of electricity & magnetism _______6. Oersted showed how a current wire behaves like a magnet. _______7. there is an inverse relationship between the frequency and wavelength of electromagnetic waves _______8. The amount of energy in the wave increases as wavelengths get smaller and tighter _______9. Hertz is the unit used to measure the frequency of waves ______10.Wavelength is the distance measured from one crest of to the next crest or from one trough to another trough. ELECTROMAGNETIC SPECTRUM lowest level energy highest level energy 1 2 3 4 5 6 7 8.Which of the following Electromagnetic Spectrum has the lowest frequency?______________________ 9. Which of the following Electromagnetic Spectrum has the longest wavelength? ___________________ 10. Which of the following Electromagnetic Spectrum has the shortest wavelength? ___________________ MULTIPLE CHOICE. Direction: Read the statement carefully and write the letter of the correct answer in your answer sheet _______1. Which electromagnetic wave carries more energy than the others? A. Microwaves B. Radio waves C. UV radiation D. Visible light _______2. What electromagnetic wave is sometimes called as heat rays? A. gamma rays B. infrared C. radio waves D. visible light _______3. Which of the following electromagnetic waves have the lowest frequency and energy? A. gamma rays B. infrared C. radio waves D. visible light _______4. Which of the following forms of electromagnetic waves is used in cancer treatment? A. gamma ray B. microwave C. ultraviolet D. x-ray _______5. Which two waves lie at the ends of the visible spectrum?
A. Infrared and Ultra-violet rays B. Radio waves and Microwaves C. Radio waves and X-rays D. X-rays and Gamma rays _______6. In the visible spectrum, which color has the longest wavelength? A. Blue B. Green C. Red D. Violet _______7. Which property spells the difference in Infra-red and ultra-violet radiation? A. Color B. Frequency C. Speed in Vacuum D. Wavelength _______8. Which of the following bands or frequencies does the TV broadcasting network used? A. High & Medium Frequency C. Low & Medium Frequency B. Ultra High & Super High Frequency D. Very High & Ultra High Frequency _______9. What happens to the energy of the electromagnetic wave if its wavelength increases? A. decreases B. increases C. remains the same D. unequal _______10. What color of light does the wavelength of 577 to 597 nm indicates? A. Blue B. Orange C. Red D. Yellow _______11. It is used in satellite communications, radar, television transmission and cooking. A. Radio Wave B. Microwave C. Ultraviolet rays D. Visible light _______12. Which of the following electromagnetic waves is being emitted by stars and other radioactive substances? A. gamma rays B. infrared C. x-rays D. visible light _______13. Which of the following band or frequency is the most suitable for longer distances which have more than 100 km wavelength range? A. Extremely High Frequency C. Super High Frequency B. Extremely Low Frequency D. Ultra High Frequency _______14. What is the specific temperature for an object emits only infrared radiation? A. Above 500 ºC B. Above 5000 ºC C. Below 500 ºC D. Below 5000 ºC _______15. Which shows the correct sequence of Electromagnetic waves from highest energy to lowest energy A. Infrared – Microwave – Radio wave – Gamma rays – X-rays – Visible light – UV rays B. Gamma rays – X-rays – UV rays – Visible light – Infrared – Microwave – Radio wave C. Radio wave – Microwave – Infrared – Visible light – UV rays – X-rays – Gamma rays D. Radio wave – Infrared – Microwave – UV rays – Visible light – X-rays – UV rays _______16. Which of the following forms of electromagnetic waves is used mostly in communication? A. Gamma ray B. Infrared C. Radio wave D. X-rays _______17. How does the radio wave signal is transmitted through radar system? A. Antenna – Receiver - Transmitter C. Transmitter – Antenna - Receiver B. Antenna – Transmitter - Receiver D. Transmitter – Receiver - Antenna _______18. Which of the following devices used Infrared radiation Except A. Autofocus cameras B. Fluorescence C. Night vision googles D. Remote control _______19. Which of the following electromagnetic spectrum is being used for sterilization? A. Gamma rays B. Microwaves C. UV rays D. Both A & C
_______20. Which of the following electromagnetic spectrum is the only visible to the naked eye of human? A. Infrared B. Microwaves C. Visible light D. X-rays