earthquakes - SCHOOLinSITES
... P waves and S waves What are seismic waves that travel along earth’s surface called? Surface waves Waves that travel through solids liquids and gases are called P waves. P waves are the fastest waves, so they travel ahead of other seismic waves. What are P waves also called? Primary waves because th ...
... P waves and S waves What are seismic waves that travel along earth’s surface called? Surface waves Waves that travel through solids liquids and gases are called P waves. P waves are the fastest waves, so they travel ahead of other seismic waves. What are P waves also called? Primary waves because th ...
Earthquakes
... Use instruments called seismographs Record seismic waves A drum with a sheet of paper vibrates and a stationary pen marks the vibrations on the paper The height of the lines are used to measure the energy released from the earthquake called the magnitude ...
... Use instruments called seismographs Record seismic waves A drum with a sheet of paper vibrates and a stationary pen marks the vibrations on the paper The height of the lines are used to measure the energy released from the earthquake called the magnitude ...
CHAPTER 12 EARTHQUAKES
... speed of seismic waves increases abruptly at 30 km beneath the surface of continents. • Because the mantle is denser than the crust. • Therefore, this marks the boundary between the mantle and crust. • The depth of this boundary varies from 10 km under the oceans to 30 km under the continents. • Ear ...
... speed of seismic waves increases abruptly at 30 km beneath the surface of continents. • Because the mantle is denser than the crust. • Therefore, this marks the boundary between the mantle and crust. • The depth of this boundary varies from 10 km under the oceans to 30 km under the continents. • Ear ...
Alfred Lothar Wegener, 1880-1930
... noticed the close fit between the coastlines of Africa and South America. Might the similarities among organisms be due, not to land bridges, but to the continents having been joined together at one time? As he later wrote: "A conviction of the fundamental soundness of the idea took root in my ...
... noticed the close fit between the coastlines of Africa and South America. Might the similarities among organisms be due, not to land bridges, but to the continents having been joined together at one time? As he later wrote: "A conviction of the fundamental soundness of the idea took root in my ...
Slide 1
... hot, it radiates a natural heat to the upper layers. • Because of this a current of heat comes into being. Those are also known as the convection currents. • The convection currents cause the movement of the tectonic plates. ...
... hot, it radiates a natural heat to the upper layers. • Because of this a current of heat comes into being. Those are also known as the convection currents. • The convection currents cause the movement of the tectonic plates. ...
~2.6 MB
... sub-slab trenchparallel flow of mantle material, and for a rapid reorientation of this flow at the northern edge of the Pacific plate. ...
... sub-slab trenchparallel flow of mantle material, and for a rapid reorientation of this flow at the northern edge of the Pacific plate. ...
What is an earthquake
... originates in a few rela-tively narrow zones that wind around the globe Major earthquake zones include the Circum-Pacific belt, Mediterranean Sea region to the Himalayan complex, and the ...
... originates in a few rela-tively narrow zones that wind around the globe Major earthquake zones include the Circum-Pacific belt, Mediterranean Sea region to the Himalayan complex, and the ...
Earthquakes Unit STUDY GUIDE
... a. near divergent boundaries. c. near transform boundaries. b. near convergent boundaries. d. along normal faults. The last seismic waves to arrive are a. P waves. c. surface waves. b. S waves. d. body waves. Strike-slip faults are prominent along ____ plate boundaries a. convergent c. transcontinen ...
... a. near divergent boundaries. c. near transform boundaries. b. near convergent boundaries. d. along normal faults. The last seismic waves to arrive are a. P waves. c. surface waves. b. S waves. d. body waves. Strike-slip faults are prominent along ____ plate boundaries a. convergent c. transcontinen ...
pdf file - High Point University
... Figure 3: Top plate is positively charged and the bottom plate is negatively charged. Because the electric eld between the plates is constant, the electric potential varies linearly with y . Electric eld points from high potential to low potential. Therefore, the top plate is at a higher potential ...
... Figure 3: Top plate is positively charged and the bottom plate is negatively charged. Because the electric eld between the plates is constant, the electric potential varies linearly with y . Electric eld points from high potential to low potential. Therefore, the top plate is at a higher potential ...
Electron and Ion Dynamics of the Solar Wind Interaction with a
... magnetic field lines drape around the nucleus. No bow shock develops, as expected for a weakly outgassing comet [22]. The heavy cometary ions are accelerated by the convective electric field, to be eventually picked up far downstream, whereas solar wind protons deflect in the opposite direction in a ...
... magnetic field lines drape around the nucleus. No bow shock develops, as expected for a weakly outgassing comet [22]. The heavy cometary ions are accelerated by the convective electric field, to be eventually picked up far downstream, whereas solar wind protons deflect in the opposite direction in a ...
Earthquakes
... P waves (primary waves)- longitudinal waves similar to sound waves Move through solid and liquid material Compress and expand the ground Similar to an accordion or a slinky ...
... P waves (primary waves)- longitudinal waves similar to sound waves Move through solid and liquid material Compress and expand the ground Similar to an accordion or a slinky ...
Convection currents
... The movement of energy from a warmer object to a cooler object is called heat transfer. Heat is always transferred from a warmer substance to a cooler substance. There are three types of heat transfer: radiation, conduction, and convection. The transfer of energy through empty space is called radiat ...
... The movement of energy from a warmer object to a cooler object is called heat transfer. Heat is always transferred from a warmer substance to a cooler substance. There are three types of heat transfer: radiation, conduction, and convection. The transfer of energy through empty space is called radiat ...
Mechanical Waves
... Sound is the movement of air particles created by a vibrating source. Air particles are in constant random motion, exerting very small pressure variations around the steady-state atmospheric pressure. Each particle is subject to both an inertial force (due to its mass and acceleration) and a force w ...
... Sound is the movement of air particles created by a vibrating source. Air particles are in constant random motion, exerting very small pressure variations around the steady-state atmospheric pressure. Each particle is subject to both an inertial force (due to its mass and acceleration) and a force w ...
File - earth science online
... Seismic Waves (cont.) Seismic waves – P waves • Travels through liquids as well as solids • In all materials, P waves travel faster than do S waves – S waves • Cannot travel through liquids Seismic Waves (cont.) Seismic waves – Seismic waves refract (bend) as they pass from one material to another – ...
... Seismic Waves (cont.) Seismic waves – P waves • Travels through liquids as well as solids • In all materials, P waves travel faster than do S waves – S waves • Cannot travel through liquids Seismic Waves (cont.) Seismic waves – Seismic waves refract (bend) as they pass from one material to another – ...
Science Grade 8 Daily PACT Review Questions
... common. Humans are also part of the most recent period of this era. The law of superposition states that each rock layer is older than the one above it. So using this layering, the relative age of the rock or fossil in the rock is older if it is farther down in the rock layers. Relative dating can b ...
... common. Humans are also part of the most recent period of this era. The law of superposition states that each rock layer is older than the one above it. So using this layering, the relative age of the rock or fossil in the rock is older if it is farther down in the rock layers. Relative dating can b ...
Earth Science Regents Review
... If the difference in arrival times of the P- and Swaves is 6 minutes 20 seconds, how far is the distance to the epicenter? ________________ A P-wave arrived at 3:32:00 p.m. and the S-wave arrived at 3:36:30 p.m. How far away is the ...
... If the difference in arrival times of the P- and Swaves is 6 minutes 20 seconds, how far is the distance to the epicenter? ________________ A P-wave arrived at 3:32:00 p.m. and the S-wave arrived at 3:36:30 p.m. How far away is the ...
Field Notebook
... What could influence the lag time between the arrival of S and P waves, other than distance from the epicenter? Claim: ...
... What could influence the lag time between the arrival of S and P waves, other than distance from the epicenter? Claim: ...
Earthquakes - Fair Lawn Public Schools
... • 1. The Richter magnitude scale uses the amount of motion at a given distance from an earthquake to determine the magnitude of the earthquake. • 2. The moment magnitude scale measures the total amount of energy released by an earthquake. • 3. The Modified Mercalli scale measures the earthquake inte ...
... • 1. The Richter magnitude scale uses the amount of motion at a given distance from an earthquake to determine the magnitude of the earthquake. • 2. The moment magnitude scale measures the total amount of energy released by an earthquake. • 3. The Modified Mercalli scale measures the earthquake inte ...
CompositionoftheEarth
... A very wide range of temperatures are estimated for the outer core. They range from 2500℃ on the cooler end and 7500℃ on the hot side. The the movement of the outer core is thought to be responsible for the Magnetic field of the earth. Mantle The mantle is a little odd. It’s very hot but the rocks ...
... A very wide range of temperatures are estimated for the outer core. They range from 2500℃ on the cooler end and 7500℃ on the hot side. The the movement of the outer core is thought to be responsible for the Magnetic field of the earth. Mantle The mantle is a little odd. It’s very hot but the rocks ...
Planetary Magnetic Fields: Achievements and Prospects
... alloy, then an inner core will nucleate. In Earth, we know from seismic evidence that the core is ∼10% less dense than pure iron and many suggestions have been offered for the identity of the light elements that are mixed with the iron (Poirier 1994; Gessmann et al. 2001). As the inner core freezes, ...
... alloy, then an inner core will nucleate. In Earth, we know from seismic evidence that the core is ∼10% less dense than pure iron and many suggestions have been offered for the identity of the light elements that are mixed with the iron (Poirier 1994; Gessmann et al. 2001). As the inner core freezes, ...
Planetary Magnetic Fields: Achievements and Prospects
... alloy, then an inner core will nucleate. In Earth, we know from seismic evidence that the core is ∼10% less dense than pure iron and many suggestions have been offered for the identity of the light elements that are mixed with the iron (Poirier 1994; Gessmann et al. 2001). As the inner core freezes, ...
... alloy, then an inner core will nucleate. In Earth, we know from seismic evidence that the core is ∼10% less dense than pure iron and many suggestions have been offered for the identity of the light elements that are mixed with the iron (Poirier 1994; Gessmann et al. 2001). As the inner core freezes, ...
Ch 7 Lesson 2 Outline
... a. The direction of a magnetic field in minerals can be determined by using a device called a(n) ...
... a. The direction of a magnetic field in minerals can be determined by using a device called a(n) ...
Earth`s vital statistics Shape: almost spherical almost spherical Size
... •Waves are reflected or refracted according to the density of the material through which they travel •P waves are faster than S waves •There is a distinct S waves shadow zone •There is also a P wave shadow zone where they are significantly weaker •P waves appear on the other side of the earth, but a ...
... •Waves are reflected or refracted according to the density of the material through which they travel •P waves are faster than S waves •There is a distinct S waves shadow zone •There is also a P wave shadow zone where they are significantly weaker •P waves appear on the other side of the earth, but a ...