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IPC Waves Quiz Name: PART I Directions: Match the terms in column I with the correct description in column II. Column I Column II a. a repeating disturbance that transfers 1. amplitude energy through matter or space 2. crest b. highest point of a wave 3. diffraction c. bending of a wave as it moves from 4. frequency one medium to another 5. medium d. a material that a wave transfers energy 6. refraction through 7. resonance e. lowest point of a wave 8. trough f. bending or splitting of a wave as it 9. wave passes around a barrier 10. wavelength g. distance between one point on a wave and the nearest point just like it h. how many wavelengths pass a fixed point each second j. ability of an object to vibrate by absorbing energy at its natural frequency k. measure of the energy in a wave PART II Directions: The illustration to the right represents the law of reflection. Copy the letters from the illustration next to the terms they stand for. 11. normal 12. angle of reflection 13. reflected beam 14. incident beam 15. angle of incidence Directions: Match the units to the quantities they measure by writing the correct letter in the space provided. Directions: For each of the following write the letter of the phrase that best completes the sentence. 16. The high point of a transverse wave is __________ . a. a rarefaction b. the frequency c. the crest 17. The less dense region of a compression wave is called __________. a. a rarefaction b. the frequency c. the crest 19. wavelength 20. frequency 21. wave speed a. meter b. meters/second c. hertz Directions: Solve the following problems. Place your answer in the space provided. (Round all answers to the nearest tenth 0.10) 22. The speed of sound in air is about 340 m/s. What is the wavelength of a sound wave with a frequency of 220 Hz? 18. The number of wavelengths that pass a fixed point each second is __________ of a wave. a. a rarefaction b. the frequency c. the crest 23. Ocean waves are hitting a beach at a rate of 2.3 Hz. The distance between wave crests is 10.12 m. Calculate the speed of the waves. 24. Electromagnetic waves of different wavelengths have been given different names. According to the table, which type of electromagnetic wave can have a wavelength greater than 5 m? A Radio waves B Microwaves C Red light D Blue light 25. According to the table, which type of electromagnetic wave can have a wavelength of 0.000046 cm? A Radio waves B Microwaves C Red light D Blue light 26. If a device were emitting an electromagnetic wave of 0.00000001 cm, what kind of device would it be? A Radio B Microwave oven C Flashlight D X-ray machine