Name: Unit 5-6 Pretest. 28. Circle the picture(s) that show erosion.

Transcription

1 Name: 28. Circle the picture(s) that show erosion. ATEP 2009 UAF Geophysical Institute 10

2 29. Write or draw what a ghost forest is. soil 30. These are layers from the soil. Circle the oldest layer. sand soil 31. Circle the newest layer. ash 32. What would make a layer of soil on the ground? Circle one. A volcano Plants A tsunami 33. What would make a layer of sand on the ground? Circle one. A volcano Plants A tsunami ATEP 2009 UAF Geophysical Institute 11

3 34. What would make a layer of ash on the ground? Circle one. A volcano Plants A tsunami 35. What will a wave do to a boat? Circle one. The boat will stay in about the same place. The water will carry the boat to the edge of the pan. 36. In the deep ocean, these will feel a wave made by the wind. Circle one or more. 37. In the deep ocean, these will feel a wave made by a tsunami wave. Circle one or more. ATEP 2009 UAF Geophysical Institute 12

4 38. Write a B on the pictures of things that might be used in bathymetry. depth finder telescope satellite tape measure computer submarine pencil 39. Circle the tools used to make a bathymetric map. screwdriver pencil hammer ruler electronic distance meter satellite computer ATEP 2008 UAF Geophysical Institute 13

5 40. Circle the correct wave type below each picture a. tsunami wind wave b. tsunami wind wave c. tsunami wind wave d. tsunami wind wave ATEP 2009 UAF Geophysical Institute 14

6 41. What is this type of boat called? 42. How is the boat made to travel fast over ocean waves? 43. Write the following words in the local Native language. a. mountain b. volcano c. hill d. cliff e. cave f. island g. ocean h. lake i. river j. bay k. earthquake l. tsunami ATEP 2009 UAF Geophysical Institute 15

7 44. Name four major undersea features of the North Pacific that would affect how a tsunami wave travels across the ocean. a. b. c. d. 45. List ways to learn about the seismic history of an area. a. b. c. d. 46. List two digital mapping technologies necessary for mapping worst-case tsunami inundation scenarios for Alaskan Communities. a. b. 47. Make a check next to the statement that is true: Wave speed increases in deeper water. Wave speed decreases in deeper water. Wave speed does not change as water depth changes. 48. Use the equation, speed = distance / time, to calculate the speed of a tsunami traveling across a distance of 3580 kilometers in 4.5 hours. Round to the nearest whole number. Show your work. ATEP 2009 UAF Geophysical Institute 16

8 49. Write P (P wave), S (S wave), L (Love Wave), and/or R (Rayleigh Wave) as they apply to each statement below. and are surface waves. and are body waves. and are used to determine the epicenter of an earthquake. This is also called a ground roll and particles move in a circular motion as the wave passes through. In an earthquake, this type of wave causes the land to move side to side. 50. Where was the village of Chinega located and how was it affected by the earthquake and tsunami of 1964? 51. Match items from the left column to the best wave behavior on the right. Amplitudes of different waves combine to form a new wave pattern. The angle at which a wave approaches a barrier. a. Reflection b. Refraction A wave transfers from one medium to another. Waves reflect off a parabola to converge at this single point. The angle at which a wave bounces off a barrier. c. Diffraction d. Wave Interference e. θ i Waves bending around barriers. f. θ r g. Focus ATEP 2009 UAF Geophysical Institute 17

9 52. Circle the correct answer. A magnitude 5 earthquake is times larger than a magnitude 4 earthquake. a. 2 b. 10 c. 100 d Circle the correct answer. The total amount of energy released from a magnitude 5 earthquake will be time s larger than from a magnitude 4 earthquake. a. 2 b. 10 c. 100 d. 32 ATEP 2009 UAF Geophysical Institute 18