Waves. Wave Parameters. Krauss Chapter Nine


 Lesley Rich
 2 years ago
 Views:
Transcription
1 Waves Krauss Chapter Nine Wave Parameters Wavelength = λ = Length between wave crests (or troughs) Wave Number = κ = 2π/λ (units of 1/length) Wave Period = T = Time it takes a wave crest to travel one wavelength (units of time) Angular Frequency = ω = 2π/T (units of 1/time) Wave Speed = C = ω/κ Distance a wave crest travels per unit time (units of distance/time) Wave Height = 2a = Twice the wave amplitude Wave Steepness = Wave Height/Wavelength 1
2  Ideal waves Propagate Energy but not Mass Wave Equation NavierStokes Equation Ignoring viscous forces and looking just at the x and z components Expanding the terms 2
3 Eq. 1 Eq. 2 These equations used to establish boundary conditions (see Krauss) Eq. 3 This expression solved to obtain wave equation (see Krauss) Guess a solution for Eq. 3 of the form Eq. 4 Plug Eq. 4 into Eq. 3 to yield the following differential equation Eq. 5 Eq. 5 One solution to Eq. 5 is So Eq. 6 The lower boundary condition requires that w (or dφ/dz) go to zero at z = h (h is the seafloor depth) (see Krauss) The boundary condition at the free surface must satisfy the following expression (see Krauss) The lower boundary condition requires B=0 The free surface boundary condition requires (see Krauss) Eq. 7 3
4 Eq. 7 or or Also known as the dispersion relation of Lamb (1945) or Given that the phase velocity can be written as C = ω/κ it follows that Phase velocity as a function of wave number and water depth note Therefore For h < λ/20 For h > λ/2 4
5 Wave Speeds  DeepWater Waves (Bottom Depth > λ/2) Speed is a Function of Wavelength Only Waves with Longer Wavelength move faster than Waves with Shorter Wavelength ShallowWater Waves (Bottom Depth < λ /20) Speed is a Function of Depth Only Waves Travel Slower in Shallower Water Irrespective of Wavelength as long as Depth < λ /20 DeepWater and ShallowWater Wave Regions 5
6 Speed of DeepWater and Shallow Water Waves as a Function of Wavelength and Depth Important Consequences of Wave Speed Dependency on Wavelength or Bottom Depth 6
7 Wave Dispersion: Self Sorting of DeepWater Waves Leaving a Storm Region based on Wavelength. It Occurs Because Longer Wavelength Waves Travel Faster than Shorter Wavelength Waves (for Deep Water). Wave Refraction: Bending of ShallowWater Wave Fronts Due to Change in Bottom Depth. The Leading Edge of a Wave Front Enters Shallower Water and Slows While the Remaining Front Continues at Higher Speed. The Net Result is a Rotation of Wave Fronts To Become Parallel with Bottom Depth Contours. 7
8 Consequence of Wave Refraction Focusing and Defocusing of Wave Energy on Headlands and Bays, Respectively Group Velocity 8
9 Group Velocity Group Velocity using a trigonometric rule recall Wave Speed = C = ω/κ for: Then by analogy In the limit 9
10 C = ω/κ or ω = C κ The Main Point: Group velocity for Deep Water Waves is 1/2 the phase velocity. Group velocity for Shallow Water Waves is equal to the phase velocity. Wave Spectra 10
11 Spectral Analysis Time Domain to Frequency Domain Transformation Spectral Analysis Two Sine Waves at 260 Hz and 525 Hz, Respectively 11
12 Spectral Analysis Time Series derived from the Summation of the Two Sine Waves Spectral Analysis Fourier Transform from Time Domain to Frequency Domain of Previous Time Series 12
13 Distribution of Wave Energy in the Ocean as a Function of Wave Frequency or Wavelength 13
14 Aliasing in Wave Sampling 14
15 Wave Generation Wave Height of WindGenerated Waves is a Function of 1. Wind Speed 2. Duration of Wind Event 3. Fetch  the distance over which wind can blow without obstruction Full Developed Waves (Unlimited by Fetch and Duration) 15
16 The Importance of Fetch Northerly/Southerly Winds Produce a Long Fetch Over Finger Lakes (A), and Easterly/Westerly Winds Produce a Short Fetch (B) A B Fetch in the Open Ocean is Limited by the Size of the Storm System 16
17 Lateral Spreading of Wave Energy from a Storm Source (95% of Energy Contained Within ±45 o of Storm Direction) 17
Waves: Undulatory Motion of a Water Surface
Key Ideas Wind waves form when energy is transferred from wind to water. Waves transmit energy, not water mass, across the ocean s surface. The behavior of a wave depends on the relation between the wave
More informationOS 101 Marine Environment Winter Ocean Waves
OS 101 Marine Environment Winter 2006 Ocean Waves I. Some General Considerations about Waves Perhaps the easiest way to think about waves moving across the ocean is to imagine that we are at the edge of
More informationAnnouncements. Exam 1 results
Announcements Exam results Exams graded we ll go over them today No office hours on Thursday Next project due online Nov. st Gale Warnings issued today Appropriately, this week is all about waves! Today:
More informationOceans Practice Questions and Answers Revised August 2008
Oceans Practice Questions and Answers Revised August 2008 1. In the following illustration what do you call the land that borders the oceans? All of the landmass to the left of this line lies adjacent
More informationA. DeepWater Waves. 1. Wave Speed (S) = wavelength (L) meters wave period (T) seconds. OCE3014L Lab 7 Waves & Longshore Currents
A. DeepWater Waves If the water depth (d) is greater then the wave base (equal to onehalf the wavelength, or L/2), the waves are called deepwater waves. Deepwater waves have no interference with the
More informationAnd although two objects like these bumper boats cannot be in the same place on the water at the same time, water waves can. Why is that?
Physics 1103 Wave Interactions (picture of beach on screen) Today, we go back to the beach to investigate more wave interactions. For example, what makes these waves change direction as they approach the
More informationWaves disturbances caused by the movement of energy from a source through some medium.
Oceanography Chapter 10 Waves disturbances caused by the movement of energy from a source through some medium. Floating Gull Figure 10.1 water is not moving only the energy is moving through the water.
More informationPhysical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect
Objectives: PS7.1 Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect Illustrate ways that the energy of waves is transferred by interaction with
More informationWave Vocabulary 25 words 1. WAVE 2. MEDIUM 3. MECHANICAL WAVE 4. ELECTROMAGNETIC WAVES 5. ENERGY 6. TRANSVERSE WAVES 7. LONGITUDINAL WAVES 8.
WAVES Chapter 11 Wave Vocabulary 25 words 1. WAVE 2. MEDIUM 3. MECHANICAL WAVE 4. ELECTROMAGNETIC WAVES 5. ENERGY 6. TRANSVERSE WAVES 7. LONGITUDINAL WAVES 8. CREST 9. TROUGH 10. INTERFERENCE 11. CONSTRUCTIVE
More informationintroduction to waves on page 3.) This animation can be created with Microsoft PowerPoint (PC) or Apple Keynote (Mac).
Lesson Plan 22 Making Waves In deep water,* every water molecule moves in a circular orbit and returns to its starting position as a wave passes by. In this activity, students build a simple computer model
More informationGreens functions  solution for earthʼs surface movement due to a slipping patch at depth
Greens functions  solution for earthʼs surface movement due to a slipping patch at depth Need to know slip distribution along the fault as a function of time No closedform solution for Greens functions
More informationUnit 4 Sound and Waves
Name: Class: Date: Unit 4 Sound and Waves Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The speed of any mechanical wave as it propagates through a medium
More informationWaves and Sound Part 1
Waves and Sound Part 1 Intro Write the following questions on a blank piece of paper (don t answer yet) 1. What is the difference between a mechanical and electromagnetic wave? 2. What is the difference
More informationLesson 19: Mechanical Waves!!
Lesson 19: Mechanical Waves Mechanical Waves There are two basic ways to transmit or move energy from one place to another. First, one can move an object from one location to another via kinetic energy.
More informationMODULE VII LARGE BODY WAVE DIFFRACTION
MODULE VII LARGE BODY WAVE DIFFRACTION 1.0 INTRODUCTION In the wavestructure interaction problems, it is classical to divide into two major classification: slender body interaction and large body interaction.
More information16.2 Periodic Waves Example:
16.2 Periodic Waves Example: A wave traveling in the positive x direction has a frequency of 25.0 Hz, as in the figure. Find the (a) amplitude, (b) wavelength, (c) period, and (d) speed of the wave. 1
More informationUnit 6 Practice Test: Sound
Unit 6 Practice Test: Sound Name: Multiple Guess Identify the letter of the choice that best completes the statement or answers the question. 1. A mass attached to a spring vibrates back and forth. At
More informationLecture 10 ATOC 5051 INTRODUCTION TO PHYSICAL OCEANOGRAPHY
ATOC 5051 INTRODUCTION TO PHYSICAL OCEANOGRAPHY Lecture 10 Learning objectives: understand gravity waves & their roles in oceanic adjustment (for f=0); should be able to explain wave refraction & breaking
More informationPHYS 1014M, Fall 2005 Exam #3. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
PHYS 1014M, Fall 2005 Exam #3 Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A bicycle wheel rotates uniformly through 2.0 revolutions in
More informationAngle of an incident (arriving) ray or particle to a surface; measured from a line perpendicular to the surface (the normal) Angle of incidence
The maximum displacement of particles of the medium from their mean positions during the propagation of a wave Angle of an incident (arriving) ray or particle to a surface; measured from a line perpendicular
More informationAnswer the following questions during or after your study of Wave Properties. 4. How are refraction and the speed of wave in different media related?
Wave Properties Student Worksheet Answer the following questions during or after your study of Wave Properties. 1. A person standing 385 m from a cliff claps her hands loudly, only to hear the sound return
More informationDoppler. Doppler. Doppler shift. Doppler Frequency. Doppler shift. Doppler shift. Chapter 19
Doppler Doppler Chapter 19 A moving train with a trumpet player holding the same tone for a very long time travels from your left to your right. The tone changes relative the motion of you (receiver) and
More informationCopyright 2008 Pearson Education, Inc., publishing as Pearson AddisonWesley.
Chapter 20. Traveling Waves You may not realize it, but you are surrounded by waves. The waviness of a water wave is readily apparent, from the ripples on a pond to ocean waves large enough to surf. It
More informationWavesWave Characteristics
1. What is the wavelength of a 256hertz sound wave in air at STP? 1. 1.17 10 6 m 2. 1.29 m 3. 0.773 m 4. 8.53 107 m 2. The graph below represents the relationship between wavelength and frequency of
More informationRefractive Index and Dispersion: Prism Spectrometer
Refractive Index and Dispersion: Prism Spectrometer OBJECTIVES: The purpose of this experiment is to study the phenomenon of dispersion i.e. to determine the variation of refractive index of the glass
More informationName Class Date. A wave is produced that moves out from the center in an expanding circle. The wave
Exercises 25.1 Vibration of a Pendulum (page 491) 1. The time it takes for one backandforth motion of a pendulum is called the period. 2. List the two things that determine the period of a pendulum.
More informationphysics 1/12/2016 Chapter 20 Lecture Chapter 20 Traveling Waves
Chapter 20 Lecture physics FOR SCIENTISTS AND ENGINEERS a strategic approach THIRD EDITION randall d. knight Chapter 20 Traveling Waves Chapter Goal: To learn the basic properties of traveling waves. Slide
More informationChapter 23 Multiple Choice Test
Name: Class: Date: Chapter 23 Multiple Choice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A unit of motion repeated over and over again is called
More informationebb current, the velocity alternately increasing and decreasing without coming to
Slack water (slack tide): The state of a tidal current when its velocity is near zero, especially the moment when a reversing current changes its direction and its velocity is zero. The term is also applied
More informationF en = mω 0 2 x. We should regard this as a model of the response of an atom, rather than a classical model of the atom itself.
The Electron Oscillator/Lorentz Atom Consider a simple model of a classical atom, in which the electron is harmonically bound to the nucleus n x e F en = mω 0 2 x origin resonance frequency Note: We should
More informationFourier Analysis Last Modified 9/5/06
Measurement Lab Fourier Analysis Last Modified 9/5/06 Any timevarying signal can be constructed by adding together sine waves of appropriate frequency, amplitude, and phase. Fourier analysis is a technique
More informationSolution: F = kx is Hooke s law for a mass and spring system. Angular frequency of this system is: k m therefore, k
Physics 1C Midterm 1 Summer Session II, 2011 Solutions 1. If F = kx, then k m is (a) A (b) ω (c) ω 2 (d) Aω (e) A 2 ω Solution: F = kx is Hooke s law for a mass and spring system. Angular frequency of
More informationPhysics 9 Fall 2009 Homework 2  Solutions
Physics 9 Fall 009 Homework  s 1. Chapter 7  Exercise 5. An electric dipole is formed from ±1.0 nc charges spread.0 mm apart. The dipole is at the origin, oriented along the y axis. What is the electric
More informationUniversity Physics 226N/231N Old Dominion University Wave Motion, Interference, Reflection (Chapter 14)
University Physics 226N/231N Old Dominion University Wave Motion, Interference, Reflection (Chapter 14) Dr. Todd Satogata (ODU/Jefferson Lab) http://www.toddsatogata.net/2012odu Monday November 26, 2012
More informationTemporal Fourier (t f) transformation Spatial Fourier (x k x ) transformation applications fk x transformation Radon(τp x ) transformation
Temporal Fourier (t f) transformation Spatial Fourier (x k x ) transformation applications fk x transformation Radon(τp x ) transformation Linear Radon transform Parabolic Radon transform t domain Time
More informationManufacturing Equipment Modeling
QUESTION 1 For a linear axis actuated by an electric motor complete the following: a. Derive a differential equation for the linear axis velocity assuming viscous friction acts on the DC motor shaft, leadscrew,
More informationCHAPTER 14 WAVE & Sound
CHAPTER 14 WAVE & Sound COURSE CONTENT Properties of waves Definition Types of waves Wavelength Amplitude Frequency Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves,
More informationWaves. Sec Wave Properties. Waves are everywhere in nature. What is a wave? Example: Slinky Wave
Waves PART I Wave Properties Wave Anatomy PART II Wave Math Wave Behavior PART III Sound Waves Light Waves (aka Electromagnetic Waves or Radiation) 1 Sec. 14.1 Wave Properties Objectives Identify how waves
More informationAntennas & Propagation. CS 6710 Spring 2010 Rajmohan Rajaraman
Antennas & Propagation CS 6710 Spring 2010 Rajmohan Rajaraman Introduction An antenna is an electrical conductor or system of conductors o Transmission  radiates electromagnetic energy into space o Reception
More informationWaves Physics Leaving Cert Quick Notes
Waves Physics Leaving Cert Quick Notes Waves A wave is a means of transferring energy from one point to another Waves can be classified as mechanical where the wave must have a medium to travel through,
More informationEnergy of Waves. Book O Chapter 1
Energy of Waves Book O Chapter 1 A wave can make a leaf bob up and down on the water, but it cannot move the leaf toward the shore. This is because waves only transfer A. Media B. Crests C. Energy D. Matter
More informationSection 3 Waves and Tides
Section 3 Waves and Tides Key Concept Energy is carried through the ocean by tides, which are caused by gravitational attraction between Earth, the moon, and the sun, and by waves. What You Will Learn
More informationChapter4: Superposition and Interference
Chapter4: Superposition and Interference Sections Superposition Principle Superposition of Sinusoidal Waves Interference of Sound Waves Standing Waves Beats: Interference in Time Nonsinusoidal Wave Patterns
More informationThompson/Ocean 420/Winter 2005 Tide Dynamics 1
Thompson/Ocean 420/Winter 2005 Tide Dynamics 1 Tide Dynamics Dynamic Theory of Tides. In the equilibrium theory of tides, we assumed that the shape of the sea surface was always in equilibrium with the
More informationWavesWave Characteristics
1. What is the wavelength of a 256hertz sound wave in air at STP? 1. 1.17 10 6 m 2. 1.29 m 3. 0.773 m 4. 8.53 107 m 2. The graph below represents the relationship between wavelength and frequency of
More information3. Experimental Results
Experimental study of the wind effect on the focusing of transient wave groups J.P. Giovanangeli 1), C. Kharif 1) and E. Pelinovsky 1,) 1) Institut de Recherche sur les Phénomènes Hors Equilibre, Laboratoire
More informationIntroduction. Antennas and Propagation. Types of Antennas. Radiation Patterns. Antenna Gain. Antenna Gain
Introduction Antennas and Propagation Chapter 5 An antenna is an electrical conductor or system of conductors Transmission  radiates electromagnetic energy into space Reception  collects electromagnetic
More information7.2.4 Seismic velocity, attenuation and rock properties
7.2.4 Seismic velocity, attenuation and rock properties Rock properties that affect seismic velocity Porosity Lithification Pressure Fluid saturation Velocity in unconsolidated near surface soils (the
More informationWake pattern of a boat
UNIVERSITY OF LJUBLJANA FACULTY OF MATHEMATICS AND PHYSICS DEPARTMENT OF PHYSICS Seminar 2008/09 Wake pattern of a boat Špela Rožman mentor: doc. dr. Aleš Mohorič Ljubljana, 13. 5. 2009 Summary A ship
More informationGrade 8 Science Chapter 4 Notes
Grade 8 Science Chapter 4 Notes Optics the science that deals with the properties of light. Light a form of energy that can be detected by the human eye. The History of Optics (3 Scientists): 1. Pythagoras
More informationWave Hydro Dynamics Prof. V. Sundar Department of Ocean Engineering Indian Institute of Technology, Madras
Wave Hydro Dynamics Prof. V. Sundar Department of Ocean Engineering Indian Institute of Technology, Madras Module No. # 02 Wave Motion and Linear Wave Theory Lecture No. # 03 Wave Motion II We will today
More informationLecture 3. Turbulent fluxes and TKE budgets (Garratt, Ch 2)
Lecture 3. Turbulent fluxes and TKE budgets (Garratt, Ch 2) In this lecture How does turbulence affect the ensemblemean equations of fluid motion/transport? Force balance in a quasisteady turbulent boundary
More informationWaves and Sound. An Introduction to Waves and Wave Properties Wednesday, November 19, 2008
Waves and Sound An Introduction to Waves and Wave Properties Wednesday, November 19, 2008 Mechanical Wave A mechanical wave is a disturbance which propagates through a medium with little or no net displacement
More informationMFE659 Lecture 4a EARTHQUAKES & TSUNAMIS. Japanese Tsunami. Nuclear Disaster. Deadly Whirlpool. The death toll 19,300+.
MFE659 Lecture 4a EARTHQUAKES & TSUNAMIS Japanese Tsunami Tsunami on the coast of Sumatra The death toll 19,300+. 1 2 Deadly Whirlpool Nuclear Disaster 3 4 Nuclear Disaster Widespread Devistation 5 6 TSUNAMIS
More informationPHYS 100 Introductory Physics Sample Exam 2
PHYS 00 Introductory Physics Sample Exam Formulas: Acceleration due to Gravity = 0 m/s Weight = Mass x Acceleration due to Gravity Work = Force x Distance Gravitational Potential Energy = Weight x Height
More informationQuestion based on Refraction and Refractive index. Glass Slab, Lateral Shift.
Question based on Refraction and Refractive index. Glass Slab, Lateral Shift. Q.What is refraction of light? What are the laws of refraction? Ans: Deviation of ray of light from its original path when
More informationStatistical Analysis of Nonstationary Waves off the Savannah Coast, Georgia, USA
1 Statistical Analysis of Nonstationary Waves off the Savannah Coast, Xiufeng Yang School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA, 30332 (xfyang@gatech.edu)
More informationv = fλ PROGRESSIVE WAVES 1 Candidates should be able to :
PROGRESSIVE WAVES 1 Candidates should be able to : Describe and distinguish between progressive longitudinal and transverse waves. With the exception of electromagnetic waves, which do not need a material
More informationPhysics Open House. Faraday's Law and EM Waves Change in the magnetic field strength in coils generates a current. Electromagnetic Radiation
Electromagnetic Radiation (How we get most of our information about the cosmos) Examples of electromagnetic radiation: Light Infrared Ultraviolet Microwaves AM radio FM radio TV signals Cell phone signals
More informationChapter 2: Electromagnetic Radiation Radiant Energy I
Chapter 2: Electromagnetic Radiation Radiant Energy I Goals of Period 2 Section 2.1: To introduce electromagnetic radiation Section 2.2: To discuss the wave model of radiant energy Section 2.3: To describe
More informationChapter 15, example problems:
Chapter, example problems: (.0) Ultrasound imaging. (Frequenc > 0,000 Hz) v = 00 m/s. λ 00 m/s /.0 mm =.0 0 6 Hz. (Smaller wave length implies larger frequenc, since their product,
More informationWaves review practice questions
Name: ate: 1. The diagram shown represents four waves traveling to the right in the same transmitting medium. 4. Which wave has the greatest amplitude?.... Which type of wave is represented? 5. Which characteristic
More informationWhat happens to sound and light waves when this is no longer true? Assuming that the medium is at rest, we have three possible situations:
2.9 Doppler Effect So far, we have ignored the motion of both the wave source and any observers measuring the wave. In effect, it has been assumed that both the source and observer are at rest with respect
More informationWave Energy. A pulse is a traveling disturbance in a medium. Pictures (a) through (d) show successive positions of a pulse in a rope.
Wave Energy A pulse is a traveling disturbance in a medium. Pictures (a) through (d) show successive positions of a pulse in a rope. Wave Energy A wave is a succession of pulses, traveling through a medium.
More informationSIGNAL PROCESSING & SIMULATION NEWSLETTER
1 of 10 1/25/2008 3:38 AM SIGNAL PROCESSING & SIMULATION NEWSLETTER Note: This is not a particularly interesting topic for anyone other than those who ar e involved in simulation. So if you have difficulty
More informationSP9. StudyPacks KS4 SCIENCE STUDY. Wave Basics. Wave speed = Frequency x Wavelength
StudyPacks STUDY. KS4 SCIENCE Wave Basics Wave speed = Frequency x Wavelength This Study Pack aims to cover:. Describing Waves using keywords wavelength, amplitude & frequency 2. How to calculate Wave
More informationStanding Waves and the Velocity of Sound
Chapter 8 Standing Waves and the Velocity of Sound 8.1 Purpose In this experiment we will be using resonance points of a sound wave traveling through an open tube to measure the speed of sound in air.
More informationGravity waves on water
Phys374, Spring 2006, Prof. Ted Jacobson Department of Physics, University of Maryland Gravity waves on water Waves on the surface of water can arise from the restoring force of gravity or of surface tension,
More informationResonance in a Closed End Pipe
Experiment 12 Resonance in a Closed End Pipe 12.1 Objectives Determine the relationship between frequency and wavelength for sound waves. Verify the relationship between the frequency of the sound, the
More informationSection 5.0 : Horn Physics. By Martin J. King, 6/29/08 Copyright 2008 by Martin J. King. All Rights Reserved.
Section 5. : Horn Physics Section 5. : Horn Physics By Martin J. King, 6/29/8 Copyright 28 by Martin J. King. All Rights Reserved. Before discussing the design of a horn loaded loudspeaker system, it is
More informationv = λf 1. A wave is created on a Slinky such that its frequency is 2 Hz and it has a wavelength of 1.20 meters. What is the speed of this wave?
Today: Questions re: HW Examples  Waves Wave Properties > Doppler Effect > Interference & Beats > Resonance Examples: v = λf 1. A wave is created on a Slinky such that its frequency is 2 Hz and it has
More informationStochastic Doppler shift and encountered wave period distributions in Gaussian waves
Ocean Engineering 26 (1999) 507 518 Stochastic Doppler shift and encountered wave period distributions in Gaussian waves G. Lindgren a,*, I. Rychlik a, M. Prevosto b a Department of Mathematical Statistics,
More informationPhysics 101 HW#10 Solutions Koskelo
Physics 101 HW#10 Solutions Koskelo 1.) a.) Light slows down when it enters a material. What is actually going on (on a microscopic scale) that causes this to happen? The light is actually passed from
More informationWhat is the essence of waviness? The Wave Model. Waves: examples. Particles. Wave. 1. Ripples on a pond. Think of a leaf, or a cork on the water
Chapter 20: Traveling Waves 20.1 The wave model 20.2 Onedimensional waves 20.3 Sinusoidal waves 20.4 Waves in 2 & 3dimensions 20.5 Sound and Light Waves 20.6 Power and Intensity 20.7 Doppler Effect
More informationRegister Hole Tuning
Register Hole Tuning by Mike Prairie A register hole in a flute is used to force the air column into a vibration mode that excites the second register of the flute. This is accomplished by opening the
More information1) The time for one cycle of a periodic process is called the A) wavelength. B) period. C) frequency. D) amplitude.
practice wave test.. Name Use the text to make use of any equations you might need (e.g., to determine the velocity of waves in a given material) MULTIPLE CHOICE. Choose the one alternative that best completes
More informationPRACTICE Q6Quiz 6, Ch15.1 &15.2 Interference & Diffraction
Name: Class: Date: ID: A PRACTICE Q6Quiz 6, Ch5. &5. Interference & Diffraction Multiple Choice Identify the choice that best completes the statement or answers the question.. The trough of the sine
More informationCHAPTER 13  SEA WAVES AND SURGES
CHAPTER 13  SEA WAVES AND SURGES 13.1 Sea waves and swell 13.1.1 Forecasting windwave heights and periods 13.1.1.1 Waves in deep water 13.1.1.2 Waves in shallow waters 13.1.2 Wave conditions at the shoreline;
More informationHunting Bats. Diagnostic Ultrasound. Ultrasound Realtime modality
Diagnostik Ultrasound Basic physics, image reconstruction and signal processing Per Åke Olofsson Dpt of Biomedical Engineering, Malmö University Hospital, Sweden Ultrasound Realtime modality 17WEEK FETAL
More informationReview of Chapter 25. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Review of Chapter 25 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. The time needed for a wave to make one complete cycle is its b. velocity.
More informationMilestones Review 2 (PhySci_Kennedy_2) 2. Josie sees lightning off in the distance. A few seconds later she hears thunder. What can Josie conclude?
Name: Date: 1. The distance between a wave's crest and its trough is known as its A. low tide measurement. B. water depth. C. wave height. D. wave length. 2. Josie sees lightning off in the distance. A
More information1/26/2016. Chapter 21 Superposition. Chapter 21 Preview. Chapter 21 Preview
Chapter 21 Superposition Chapter Goal: To understand and use the idea of superposition. Slide 212 Chapter 21 Preview Slide 213 Chapter 21 Preview Slide 214 1 Chapter 21 Preview Slide 215 Chapter 21
More informationTennessee State University
Tennessee State University Dept. of Physics & Mathematics PHYS 2010 CF SU 2009 Name 30% Time is 2 hours. Cheating will give you an Fgrade. Other instructions will be given in the Hall. MULTIPLE CHOICE.
More informationThe wind and the waves
The wind and the waves The windway Wave wars Graveyards Conflicting seas 17 The windway SeptÎles  We have to cross to Anticosti today, or we'll have trouble tomorrow. They're calling for 30 knot winds
More informationsin ( sin(45 )) 70.5
Seismology and Global Waves Chap. 4 HW Answers 1. A swinging door is embedded in a N S oriented wall. What force direction would be required to make the door swing on its hinge?. A ray is travelling in
More informationWaves  Transverse and Longitudinal Waves
Waves  Transverse and Longitudinal Waves wave may be defined as a periodic disturbance in a medium that carries energy from one point to another. ll waves require a source and a medium of propagation.
More informationPhysics 131: tutorial week 6 Waves (1)
Physics 131: tutorial week 6 Waves (1) Take the speed of sound in air at 0 C as 331ms 1 and the speed of electromagnetic radiation c 3, 00 10 8 ms 1. 1. A person standing in the ocean notices that after
More informationTide  rhythmic oscillation of the ocean surface due to gravitational & centrifugal forces ( inertia ) between the Earth, Moon and Sun.
Chapter 4: The Changing Level of the Sea Tides Longer Scale Variations Influence on Beaches Tide  rhythmic oscillation of the ocean surface due to gravitational & centrifugal forces ( inertia ) between
More informationHere, we derive formulas for computing crosstalk and show how to reduce it using well designed PCB layer stacks.
Crosstalk Ground and power planes serve to: Provide stable reference voltages Distribute power to logic devices Control crosstalk Here, we derive formulas for computing crosstalk and show how to reduce
More informationPhysics 25 Exam 3 November 3, 2009
1. A long, straight wire carries a current I. If the magnetic field at a distance d from the wire has magnitude B, what would be the the magnitude of the magnetic field at a distance d/3 from the wire,
More informationPeriodic Wave Phenomena
Name: Periodic Wave Phenomena 1. The diagram shows radar waves being emitted from a stationary police car and reflected by a moving car back to the police car. The difference in apparent frequency between
More informationMATH 10550, EXAM 2 SOLUTIONS. x 2 + 2xy y 2 + x = 2
MATH 10550, EXAM SOLUTIONS (1) Find an equation for the tangent line to at the point (1, ). + y y + = Solution: The equation of a line requires a point and a slope. The problem gives us the point so we
More informationSemester 2. Final Exam Review
Semester 2 Final Exam Review Motion and Force Vocab Motion object changes position relative to a reference point. Speed distance traveled in a period of time. Velocity speed in a direction. Acceleration
More informationG r a d e 1 1 P h y s i c s ( 3 0 s )
G r a d e 1 1 P h y s i c s ( 3 0 s ) Final Practice exam answer Key G r a d e 1 1 P h y s i c s ( 3 0 s ) Final Practice Exam Answer Key Instructions The final exam will be weighted as follows: Modules
More informationDIFFRACTION OF LIGHT
Laboratory Exercise 4. DIFFRACTION OF LIGHT Diffraction Gratings. Determining the Wavelength of Laser Light Using a Diffraction Grating. Refraction. Observation of Atomic Spectra. Theoretical background:
More informationCh 6: Light and Telescope. Wave and Wavelength. Wavelength, Frequency and Speed. v f
Ch 6: Light and Telescope Wave and Wavelength..\..\aTeach\PhET\waveonastring_en.jar Wavelength, Frequency and Speed Wave and Wavelength A wave is a disturbance that moves through a medium or through
More informationCenter of Mass/Momentum
Center of Mass/Momentum 1. 2. An Lshaped piece, represented by the shaded area on the figure, is cut from a metal plate of uniform thickness. The point that corresponds to the center of mass of the Lshaped
More informationpotential in the centre of the sphere with respect to infinity.
Umeå Universitet, Fysik 1 Vitaly Bychkov Prov i fysik, Electricity and Waves, 20060927, kl 16.0022.00 Hjälpmedel: Students can use any book. Define the notations you are using properly. Present your
More informationStanding Waves Physics Lab I
Standing Waves Physics Lab I Objective In this series of experiments, the resonance conditions for standing waves on a string will be tested experimentally. Equipment List PASCO SF9324 Variable Frequency
More informationWaves are created by disturbances which cause vibrations.
Wave Motion Waves are created by disturbances which cause vibrations. Vibrations produce a backandforth type motion called an oscillation. http://3d wave simulation The number of vibrations (or waves)
More information