Frequencies A sound wave is created as a result of a vibrating object. The object that is vibrating‚ is the source of the disturbance that moves throughout the medium. The object creating the disturbance could be the vocal cords of a person‚ the vibrating strings and soundboard on a string instrument‚ or the vibrating diaphragm of a radio speaker. If an object has the ability to vibrate‚ then it will produce sound. Almost every
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series of pulses is called a wave In the case of the impatient student‚ his disturbance was parallel to the direction of the wave itself. Also called a Longitudinal Wave WAVES • Waves can transmit two things ○ Can transmit energy Ex. Light waves from the sun heat the earth ○ Can transmit information Ex. Radio wave When the motion of the particles is perpendicular to the motion of the wave‚ it is called a traverse wave Pointing down Acceleration down Wave -> We see the motion of
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Nature of Waves Vibrations or oscillations are closely related to waves. Waves are created whenever objects vibrate or oscillation. Periodic Motion * A repeated motion that occurs back and forth over the same path at regular intervals. Examples: * A Child on a swing * A wrecking ball swaying to and fro * A swinging pendulum of a grandfather clock Simple Harmonic Motion (SHM) * Is a type of motion along a straight path in which the acceleration is proportional to the displacement
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its resulting wave An Investigatory Project Presented to Mr. De Leon As a Final Requirement in Science and Technology IV By: Ingrid Garcia Rosette Dungca Rochelle Canlas March 2013 Abstract The Relationship between Kinetic Energy of a dropped object impacting water and height of its resulting wave
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caves‚ arches‚ stacks and stumps through marine erosional processes and wave refraction. The combination of these processes working in conjunction with each other in the vanity of the Otakamiro point headland in the Muriwai coastal environment‚ consequently resulting in the current headland morphology of a cave and arch within the headland and an offshore stack‚ Motutara island. Waver refraction is the process where waves bend around relief and cause the erosion of the headland/relief resulting
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3B Wave Motion II 5 Chapter 5 Nature of Waves Practice 5.1 (p. 7) 1 B 2 D 3 (a) Transverse wave 11 Speed = f = 5 0.2 = 1 m s1 1 1 (ii) Period = = = 0.2 s f 5 (a) (i) (b) A heavier string (length unchanged) has greater mass per unit length. Therefore‚ (b) Longitudinal wave 4 (a) Water wave and EM wave (b) Sound wave 5 12 For case I‚ energy is transferred to the cork directly from the stone. For case II‚ energy is transferred to the cork through water waves. 6 = 1.6667 = 1
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telecommunication involving the transmission of data to and from computers and components of computer systems. More specifically data communication is transmitted via mediums such as wires‚ coaxial cables‚ fiber optics‚ or radiated electromagnetic waves such as broadcast radio‚ infrared light‚ microwaves‚ and satellites. Data Communications = Movement of computer information by means of electrical or optical transmission systems Information can be represented using analog signals Analog signals
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..........................................1 1.2 Fundamental acoustic concepts ......................................................................................1 1.2.1 Plane sound waves .............................................................................................4 1.2.2 Spherical sound waves .....................................................................................13 1.3 Acoustic measurements .....................................................................
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[pic] Course Information Fundamentals of Acoustics: Applications in Speech‚ Hearing and Language Description: This course will provide students with a basic and working knowledge of acoustics and the physics of sound. It will provide the basis for measurement and description of speech stimuli. It will have direct application to Speech‚ Hearing and Language intervention as well as application into communicative sciences. CSD 221 Student Name __________________
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Kirchhoff depth migration Beam migration Wave equation migration (WEM) Velocity modelling Full Waveform Inversion (FWI) Tomography Imaging http://www.iongeo.com/Products_Services/Data_Processing/Advanced_Imaging/Waveform_Inversion/ (http://sepwww.stanford.edu/sep/biondo/3DSI_frame.html) Seismic imaging algorithms can be divided in two broad categories: integral methods (e.g. Kirchhoff methods) and wavefield-continuation methods Technique Details Wave-Equation Migration (WEM) / wavefield
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