seismic waves ppt

Seismic waves are mechanical vibrations that occur inside the Earth. (Va�6�#U�Y��p͐ L��W��!�x�D�Ͱ��,��L�c}��V �2�ڸ[��X�і�5OMn��h�RE�&v��A�t��IE;v�F��?�|8�G��2��>)�B�c/$�+*璪d*�H��n��w��|]�a��еskv"��sv��V"��H�T��B�Q� xgP��9��ε2��7��Lv) ��t�7�K_��gew%܆ڡ#~�ĝ� G��0�n�*��Ʃ5�^��ok&ne��s��Z��v�@7,y*w��(��l&��[�MX�ә#Ԟ��͏�cs��ٖ��Z��aw�i�ٗ��G%՗��}�VP^/1x}�J�dU��᭿�;]K��n�8�֗M�E�W��P8��F�i%Ub! How Earthquake Waves Provide Information about the Interior of the Earth Seismic ` Waves These are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. 1. Types `Seismic Waves Body waves - arrive before the surface waves emitted by an earthquake. They are caused when rock breaks or is deformed. Elastic Waves. Free + Easy to edit + Professional + Lots backgrounds. (slide 1; title slide) Ocean waves and surface waves both propagate from disturbances. EVIL MATHS II If a seismic wave travels through an interface, it is similar to a ray of light passing through different media = wave refraction. When this happens, waves of energy are released and if strong enough, cause the surface of the Earth to tremble noticibly. This resource includes 31 slides; - Mechanical WAVES; - Spring waves - Water waves - Sound waves - Sound revision - Seismic waves (Earthquake etc.) Pressure. Seismic waves tend to slow down as they travel through hot material. Reflection and Transmission of seismic waves in layered media At an interface between two rock layers there is generally a change in propagation velocity resulting from difference in physical properties of the two layers. elastic waves, because they deform the Earth elastically - the rock returns to its original shape and position after the seismic wave passes through. Both types of body waves are non-dispersive (in purely elastic media). This is the fastest kind of seismic wave. The first set of waves are called P-waves or primary waves. Body waves(P and S-waves) Surface waves(Love and Rayleigh waves) Can be download for class presentation. RESULTS FROM SURFACE WAVE DISPERSION Surface wave dispersion: seismic surface waves of both Rayleigh and Love type, are dispersive; that is, their speed of propagation depends on their wavelength. Seismic waves are also of these two types. The second ones are called S-waves or secondary waves. Looks like you’ve clipped this slide to already. CrystalGraphics brings you the world's biggest & best collection of seismic waves PowerPoint templates. If you continue browsing the site, you agree to the use of cookies on this website. Preview. At such an interface, the energy within an incident seismic wave is partitioned into transmitted and reflected waves. Body Waves P Waves (compression wave) The first kind of body wave is the P wave or primary wave. Seismic Waves. $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�� ? Presentation Title: What Are Seismic Waves? C 9. They are the energy that travels through the earth and recorded on seismographs. Now customize the name of a clipboard to store your clips. • Cause rock particles to vibrate in the same direction of waves • Fastest, first detected • Travel through solids and liquids • Seismologist use seismic waves to model convection currents in the mantle. It includes the lesson aims (for several lessons) and 17 slides of the effects of earthquakes, types of wave, the Richter scale, how the waves travel through the body of the earth, seismograph trace and map showing the triangulation of the … %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�� View 12 - Pre-Assessment and Seismic Waves.pptx from SCITECS 2018-2019 at Asia Pacific College. ��I7p߳e�� _�� o�s��Ǉ��z�b+�7�[�\+��'p��YE��>Ң��ĩ��x��,�|K��S�il�$�n�C&��. what are seismic waves Powerpoint Presentation . Seismic wave, vibration generated by an earthquake, explosion, or similar energetic source and propagated within the Earth or along its surface. Three Seismic Waves Energy released at the hypocenters of earthquakes travel as three different types of waves. See our User Agreement and Privacy Policy. Waves generated by an earthquake are called seismic waves. Database Downtime. Displaying Powerpoint Presentation on what are seismic waves available to view or download. The Career Account database server will be down on Saturday December 19 from 4pm to 10pm. See our Privacy Policy and User Agreement for details. The study of earthquake waves, seismology, dates back almost 2000 years to the Chinese. – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 7ef08e-Y2E4M �.�(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(��(�3��+� �=��ө%��}��Ǖ�c�^9��ڏƚ4+�x��|�n��,b��Y&3��H�M� � �!��\�7�~3|b�Ǆ5_i��z��wx. Seismic Waves We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. In physics, waves are usually divided into progressive and standing waves. vertical or horizontal inner core planes Characteristics of Seismic Waves L, Love, Transverse horizontal VL ~ 2.0 - 4.5 km/s Love waves exist because of the Surface waves, motion, perpendicular to in the Earth Earths surface. Progressive seismic waves propagate away from seismic sources. About 1 results (6.47 milliseconds) Sponsored Links. Richter scale) - based on amplitude of waves with 1s period within 600 km of epicentre. Clipping is a handy way to collect important slides you want to go back to later. Hand out the attached Engineering & Waves: Seismic Waves PPT Worksheet to aid in note-taking and help students be accountable for the information provided in the presentation. Download what are seismic waves PPT for free. The two major types are body waves (S and P waves) and surface waves. Present students with the following information, aligned to the slides of the attached PowerPoint file. D 2. Grade 10 - Generosity. Prepared By: Mark Luwen Borigas The seismic wave speed of a material depends mainly its upon: Temperature. The two main types of waves are body waves and surface waves. - Tsunami - Electromagnetic WAVES; - Applications of EMW - Longitudinal Waves - Transverse Waves - REFRACTION of Waves - DIFFRACTION of Waves Everything is ready to be used or easily edited to suit your learners. A 7. The P wave can move through solid rock and fluids, like water or the liquid layers of the earth. Records the movement of Earth in relation to a stationary mass on a rotating drum or magnetic tape Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. `Types Seismic Waves Body waves - arrive before the surface waves emitted by an earthquake. shock wave. Created: Mar 3, 2007 | Updated: Feb 22, 2018. P- and S-waves are referred to as body waves because they are transmitted through the volume (or body) of the material, as apposed to travelling along the surface. "$"$�� C�� ,G" �� Seismic Waves CH 8.2 NCSCoS 2.04 * Imagine two railroad trains leaving the station at the same time on parallel tracks and traveling at different speeds. In these lecture notes, we shall deal only with this type of waves. ��%2F�?�k⏆?�|�&��QK��-��. If you continue browsing the site, you agree to the use of cookies on this website. The study of seismic waves provides evidence for the internal structure of the Earth, which otherwise cannot be observed directly. An example of a non-elastic wave is a . Seismic waves powerpoint. There Are Different Types Of Seismic Waves Based On The Movement 247153 PPT Presentation Summary : There are different types of seismic waves based on the movement. B 4. Module 2 The Earth’s Interior Pre-Assessment I. Waves and wave motion From the diagram we can see that: The distance between two consecutives nodes is /2 The distance between two consecutive antinodes is /2 The distance between an anti-node and the next node is /4 The Doppler effect is the apparent change in frequency of a wave due to the motion of the source or the observer. A 8. The Seismic Wave Equation Using the stress and strain theory developed in the previous chapter, we now con-struct and solve the seismic wave equation for elastic wave propagation in a uniform whole space. Characteristics of each seismic waves. 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