review for exam 32 33 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Review for Exam 32 & 33 PowerPoint Presentation
Download Presentation
Review for Exam 32 & 33

play fullscreen
1 / 97

Review for Exam 32 & 33

80 Views Download Presentation
Download Presentation

Review for Exam 32 & 33

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Review for Exam 32 & 33 By Mrs. Senger

  2. The speed of a seismic wave depends on • The type of material it travels through • The amplitude • Its frequency • The amount of sediment

  3. The speed of a seismic wave depends on • The type of material it travels through • The amplitude • Its frequency • The amount of sediment

  4. Motion in a P Wave is • Side to side • Up and down • Transverse • Longitudinal

  5. Motion in a P Wave is • Side to side • Up and down • Transverse • Longitudinal

  6. The fastest seismic wave is a • Rayleigh wave • Tertiary wave • Secondary wave • Primary wave

  7. The fastest seismic wave is a • Rayleigh wave • Tertiary wave • Secondary wave • Primary wave

  8. A seismograph • Helps prevent earthquakes • Measures ground movement • Predicts earthquakes • Measures fault displacement

  9. A seismograph • Helps prevent earthquakes • Measures ground movement • Predicts earthquakes • Measures fault displacement

  10. Secondary waves can travel through all areas of the Earth except the • Mantle • Surface • Inner core • Outer core

  11. Secondary waves can travel through all areas of the Earth except the • Mantle • Surface • Inner core • Outer core

  12. The outer core • Is solid as a rock • Transmits S waves • Has a plastic like flow • Flows fast enough to power the Earth’s magnetic field

  13. The outer core • Is solid as a rock • Transmits S waves • Has a plastic like flow • Flows fast enough to power the Earth’s magnetic field

  14. The Earth’s layer with plastic like behavior is the • Mantle • Inner core • Outer core • Crust

  15. The Earth’s layer with plastic like behavior is the • Mantle • Inner core • Outer core • Crust

  16. The core of the earth is probably composed of • An iron-nickel alloy • Aluminum oxides • Silicate minerals • Calcium magnesium sulfate

  17. The core of the earth is probably composed of • An iron-nickel alloy • Aluminum oxides • Silicate minerals • Calcium magnesium sulfate

  18. Evidence to support the concept that the inner core is solid & the outer core is liquid comes from • The inner core is not solid, it is a liquid • Refraction of seismic waves as they encounter different mediums • The absence of waves after the crust • The wave shadow effect of P & S waves and the P waves increasing speed as it enters the core

  19. Evidence to support the concept that the inner core is solid & the outer core is liquid comes from • The inner core is not solid, it is a liquid • Refraction of seismic waves as they encounter different mediums • The absence of waves after the crust • The wave shadow effect of P & S waves and the P waves increasing speed as it enters the core

  20. The inner core is solid because • It is composed of iron and nickel • The surrounding outer layers act as a blanket to insulate the core • Pressure from the weight of the surrounding layers prevents the inner core from melting • None of these, the inner core is a liquid

  21. The inner core is solid because • It is composed of iron and nickel • The surrounding outer layers act as a blanket to insulate the core • Pressure from the weight of the surrounding layers prevents the inner core from melting • None of these, the inner core is a liquid

  22. The outer core is a liquid because • It is magnetically charged • Of less weight, and thus less pressure • The inner core is solid • It is composed of molten iron

  23. The outer core is a liquid because • It is magnetically charged • Of less weight, and thus less pressure • The inner core is solid • It is composed of molten iron

  24. The outer core is thought to be molten because it • Is denser than the inner core • Will not transmit S waves • Will not transmit P waves • Is made of iron and nickel

  25. The outer core is thought to be molten because it • Is denser than the inner core • Will not transmit S waves • Will not transmit P waves • Is made of iron and nickel

  26. The earth’s magnetic field is generated in • The outer core • The mantle • The crust • Space

  27. The earth’s magnetic field is generated in • The outer core • The mantle • The crust • Space

  28. The mantle is composed of • Iron and nickel • Solid rock • Half liquid and half rocky material • Iron-rich silicate rocks

  29. The mantle is composed of • Iron and nickel • Solid rock • Half liquid and half rocky material • Iron-rich silicate rocks

  30. The upper mantle is the region known as the • Centrosphere • Mohorovicic • Lithosphere • Asthenosphere

  31. The upper mantle is the region known as the • Centrosphere • Mohorovicic • Lithosphere • Asthenosphere

  32. Thermal convection movement in the upper mantle • Generates electric current that powers the magnetic fields • Heats the earth’s core by friction • Is usually negligible • Greatly influences the Earth’s surface features

  33. Thermal convection movement in the upper mantle • Generates electric current that powers the magnetic fields • Heats the earth’s core by friction • Is usually negligible • Greatly influences the Earth’s surface features

  34. The crustal surface and the uppermost section of the mantle is called the • Mohorovicic • Centrosphere • Asthenosphere • Lithosphere

  35. The crustal surface and the uppermost section of the mantle is called the • Mohorovicic • Centrosphere • Asthenosphere • Lithosphere

  36. The lithosphere floats atop of the • Mohorovicic • Asthenosphere • Crust • mantle

  37. The lithosphere floats atop of the • Mohorovicic • Asthenosphere • Crust • mantle

  38. Movement of the lithosphere • Has leisurely pace and allows the formation of gentle rolling hills • Causes earthquakes and volcanoes • Has a plastic like flow • None of these

  39. Movement of the lithosphere • Has leisurely pace and allows the formation of gentle rolling hills • Causes earthquakes and volcanoes • Has a plastic like flow • None of these

  40. What portion of the surface crust is dense and thin? • Ocean crust • Continental crust • Both • Neither

  41. What portion of the surface crust is dense and thin? • Ocean crust • Continental crust • Both • Neither

  42. What portion of the surface crust is thick and low density? • Ocean crust • Continental crust • Both • Neither

  43. What portion of the surface crust is thick and low density? • Ocean crust • Continental crust • Both • Neither

  44. Continental crust is very buoyant compared with ocean crust because the continental crust is • Thinner than ocean crust • Very young and fresh • Mostly granitic rocks where ocean is mostly basaltic • Mostly basaltic with bubbles from the lava flow

  45. Continental crust is very buoyant compared with ocean crust because the continental crust is • Thinner than ocean crust • Very young and fresh • Mostly granitic rocks where ocean is mostly basaltic • Mostly basaltic with bubbles from the lava flow

  46. In an undisturbed sample of rocks, the youngest rocks are found • At the bottom • At the top • As an eroded bed • In the core of the anticline

  47. In an undisturbed sample of rocks, the youngest rocks are found • At the bottom • At the top • As an eroded bed • In the core of the anticline

  48. The San Andreas fault in California is a • Thrust fault • Normal fault • Strike slip fault • Syncline

  49. The San Andreas fault in California is a • Thrust fault • Normal fault • Strike slip fault • Syncline

  50. When rock is subject to compressive force, it may fault. If the rocks in the hanging wall are pushed up over the rocks of the footwall, it is called • Reverse • Normal • Strike slip • Syncline