Name__________________ Date___________________ Period_________________ Unit 8 Test-Waves Oceanography The test is worth 70 points total-1st Page=42, 2nd page=18, 3rd page=10 Each problem is worth 2 points unless otherwise noted True False Section 1. True or False: A mechanical wave can travel through empty space. 2. True or False: Electromagnetic waves can travel through matter. 3. True or False: Electromagnetic waves can travel through empty space. 4. True or False: Tsunamis also known as tidal waves can be caused by the changing tides. Vocabulary Matching 5. _C_Wave Period 6. _L_Frequency 7. _E_wave speed 8. _G_transverse wave 9. _J_longitudinal wave 10. _F_tsunami 11. _D_deep water wave 12. _P_shallow water wave 13. _N_capillary wave 14. _O_gravity wave 15. _A_swell 16. _B_interference 17. _M_rogue wave 18. _I_surf 19. _Q_refraction 20. _H_reflection 21. _K_splash wave a) Long even rolling waves that travel long distances. b) The changing of a wave’s height caused by intersecting waves. c) The time it takes one complete cycle of a wave to pass a given point. d) A wave in which the energy of the wave does not reach the land below the ocean. e) The rate at which a wave moves. f) A potentially destructive wave with a long wavelength caused by earthquakes, volcanic eruptions, meteorites, or landslides. g) a wave in which the medium moves up and down while transferring energy h) A wave property in which a the a wave hits something and the energy bounces back. i) The point at which ocean waves begin to break onto the shore. j) a wave in which the medium moves back and forth horizontally while transferring energy k) A type of tsunami caused specifically by land slide l) The number of wave crests that pass a given point in a given amount of time. m) An unusually large wave caused by constructive interference. n) A wave caused by wind that has an extremely small wavelength (also called a ripple) o) A wave in which the means of falling crests is caused by gravity. p) A wave in which the energy of the wave reaches the land below the ocean. q) The bending of waves. Drawing Section-Each Drawing Answer is worth 3 Each 22. If a ball or other floating object were dropped out at sea into a series of waves with energy traveling the path the ball would follow would be circular. What about if the ball were dropped in the surf zone? Draw a picture to explain. 23. Draw a transverse wave below and label the crest, trough, wavelength, amplitude, sea level (calm water without waves), and wave height. See the board Fill in the blank. 24. List three causes of ocean waves. Tides, earthquakes, wind, boats, landslides, meteorites 25. What are two causes of tsunamis? Earthquakes, landslides, underwater landslides, volcanoes, meteorites 26. What caused the largest wave ever recorded? Earthquake that led to a landslide 27. What is one practical use of waves? (besides surfing) Electricity 28. What general concept does the diagram below illustrate? (hint-don’t say waves)Interference 29. What specific concept does this diagram illustrate?______Constructive interference__________ 30. Short Answer Select two short answer question to answer in detail. Be sure to include some type of graphic. ∙Describe a tsunami from its starting point to where it strikes the shore. Focus on the cause, wavelength, wave height, and orbital motion. ∙Explain how ocean waves can produce electricity. ∙Write a general explanation of what a wave is with examples. ∙Compare and contrast deep water waves and shallow water waves. ∙Why does a bird in the open ocean move up and down, but a surfer can ride a wave? ∙What significant event related to Oceanography happened at Latuya Bay Alaska and why?