Waves are generated by an oscillator which has to be powered.
|
|
- Katrina Black
- 6 years ago
- Views:
Transcription
1 Traveling wave is a moving disturbance. Can transfer energy and momentum from one place to another. Oscillations occur simultaneously in space and time. Waves are characterized by 1. their velocity 2. their frequency (and hence wavelength) 3. their amplitude Waves are generated by an oscillator which has to be powered. Unique property of wave motion is: Waves can pass through each other or in other words they can be superposed. When they overlap they add algebraically.
2 Basic relation between frequency, f; wavelength' ; and velocity, v is v= f Note dimensions work out : v is m/s, f is 1/s and wavelength is m. Frequency is determined by the source generating the waves.
3 Superposition Principle If two or more traveling waves are moving through a medium, the resultant value of the wave function at any point is the algebraic sum of the values of the wave functions of the individual waves Waves that obey the superposition principle are linear waves For mechanical waves, linear waves have amplitudes much smaller than their wavelengths
4 Two pulses on a stretched rope passing through each other. Here the amplitudes add as they are in the same upward direction.
5 In this example the two wave amplitudes subtract from each other when the pulses are superposed
6 Standing Waves are Characteristic Oscillations of the vibrating system. Example: A violin string under tension and fixed at both ends. The systems parameters are: Length of the string - meters, mass per unit length of the string- kg/m, and Tension in the string - Newtons
7 Superposition of Waves Characteristic Oscillations or standing waves Two pulses in opposite directions Two wave trains in the same direction. Creation of standing waves.
8 As every point on a wave is moving with the same velocity, the location of a point on the wave is a function of time given by x(t) = x(t_0) +v(t) or every point satisfies the relation x-vt = constant So a traveling wave must have a functional form which entangles x and t in a specific way: y(x,t) = f(x-vt) for waves moving to the right.
9 Waves can pass through each other. When they overlap they add algebraically this is called superposition. If, when waves add they produce a pattern that is stationary as contrasted to travelling you obtain characteristic oscillations of the system in which waves are being superposed. For traveling or progressive waves the wave amplitude is y(x,t) = f(x-vt) = A sin kx t
10 For stationary waves the wave amplitude splits into two parts, one which depends on position only and the other on time only, see below. y x,t =A f kx g t Concrete example of two waves traveling in opposite directions with same speed and frequency y 1 x,t =A sin kx t y 2 x,t =A sin kx t y x,t =y 1 x,t y 2 x,t =2 A sin kx cos t Which is moving to the right and which to the left?
11 Phenomena of Beats: Two waves travelling to the right with slightly different frequencies with same speed y 1 x,t =A cos k 1 x 1 t y x,t = k y 2 x,t =A cos k 2 x 2 t y x,t =y 1 x,t y 2 x,t v = k y x,t =2 A cos[ k 1 k 2 2 x t]cos[ k 1 k 2 2 x t]
12 Other examples of superposition of waves: Waves traveling in the same direction Waves traveling in opposite directions Same wavelength and frequency and amplitudes but with a difference of phase (or Path difference) between them.
13 Stationary Vibrations of a String tied at both ends End points are fixed only waves which have zero amplitude at the ends can be sustained Superposition of a right going and left going wave occurs due to reflections at the fixed ends.
14 Fundamental No nodes on string First Harmonic one node on string 2 nd Harmonic two nodes on string
15 Which harmonic is shown? L = 1 m
16 In stationary oscillations all points of the system oscillate with the same frequency one of the characteristic frequencies. Points which do not move are nodes. Points which have maximum motion are anti-nodes. Fixed end points are nodes but are not used in defining harmonics. Any system which is confined and in equilibrium if it is oscillated, it can only oscillate at certain characteristic frequencies ( and therefore wavelengths) which are determined by the boundary conditions. This phenomena is called Quantization. In a characteristic state all elements of the system vibrate with the same frequency. Some locations are always at rest and some locations perform oscillations with maximum amplitude. The former are called nodes and the latter anti-nodes.
17 Waves on a string tied at both ends and under Tension The fundamental frequency corresponds to n = 1 It is the lowest frequency, ƒ 1 The frequencies of the remaining natural modes are integer multiples of the fundamental frequency ƒ n = nƒ 1 Frequencies of normal modes that exhibit this relationship form a harmonic series The normal modes are called harmonics
18 Standing waves in pipes open at one end organ pipes The higher harmonics are ƒ n = nƒ 1 = n (v/2l) where n = 1, 2, 3,
19 Standing waves in closed tubes at one end The frequencies are ƒ n = nƒ1= n (v/4l) where n = 1, 3, 5,
20 Standing Waves in Air Columns, Summary In a pipe open at both ends, the natural frequencies of oscillation form a harmonic series that includes all integral multiples of the fundamental frequency In a pipe closed at one end, the natural frequencies of oscillations form a harmonic series that includes only odd integral multiples of the fundamental frequency
21 Resonance in Air Columns, Example water can be calcuated knowing the length of air column and position of nodes. frequency f = wave speed/ wave length
22 Standing Waves in Membranes Note higher characteristici frequencies are not multiples of the fundamental. No musical tone is developed.
23 Quality of Tone: Determined by the admixture of higher harmonics their relative amplitudes Strong 5 th harmonic
24 Strong second harmonic Only fundamental excited.
Chapter 18. Superposition and Standing Waves
Chapter 18 Superposition and Standing Waves Particles & Waves Spread Out in Space: NONLOCAL Superposition: Waves add in space and show interference. Do not have mass or Momentum Waves transmit energy.
More informationInterference & Superposition. Creating Complex Wave Forms
Interference & Superposition Creating Complex Wave Forms Waves & Interference I. Definitions and Types II. Parameters and Equations III. Sound IV. Graphs of Waves V. Interference - superposition - standing
More informationCopyright 2010 Pearson Education, Inc.
14-7 Superposition and Interference Waves of small amplitude traveling through the same medium combine, or superpose, by simple addition. 14-7 Superposition and Interference If two pulses combine to give
More informationIn Phase. Out of Phase
Superposition Interference Waves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase Out of Phase Superposition Traveling waves move through each other, interfere, and keep
More informationABC Math Student Copy
Page 1 of 17 Physics Week 9(Sem. 2) Name Chapter Summary Waves and Sound Cont d 2 Principle of Linear Superposition Sound is a pressure wave. Often two or more sound waves are present at the same place
More informationChapter 17. Linear Superposition and Interference
Chapter 17 Linear Superposition and Interference Linear Superposition If two waves are traveling through the same medium, the resultant wave is found by adding the displacement of the individual waves
More informationChapter4: Superposition and Interference
Chapter4: Superposition and Interference 1. Superposition and Interference Many interesting wave phenomena in nature cannot be described by a single traveling wave. Instead, one must analyze complex waves
More informationLecture 19. Superposition, interference, standing waves
ecture 19 Superposition, interference, standing waves Today s Topics: Principle of Superposition Constructive and Destructive Interference Beats Standing Waves The principle of linear superposition When
More informationWaves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase. Out of Phase
Superposition Interference Interference Waves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase Out of Phase Superposition Traveling waves move through each other, interfere,
More informationWaves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase. Out of Phase
Superposition Interference Waves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase Out of Phase Superposition Traveling waves move through each other, interfere, and keep
More informationWaves. Topic 11.1 Standing Waves
Waves Topic 11.1 Standing Waves Standing Waves The Formation When 2 waves of the same speed and wavelength and equal or almost equal amplitudes travelling in opposite directions meet, a standing wave is
More informationWaves and Sound Practice Test 43 points total Free- response part: [27 points]
Name Waves and Sound Practice Test 43 points total Free- response part: [27 points] 1. To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 120 Hz. The other end
More informationWaves Q1. MockTime.com. (c) speed of propagation = 5 (d) period π/15 Ans: (c)
Waves Q1. (a) v = 5 cm (b) λ = 18 cm (c) a = 0.04 cm (d) f = 50 Hz Q2. The velocity of sound in any gas depends upon [1988] (a) wavelength of sound only (b) density and elasticity of gas (c) intensity
More informationWaves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no
1 Waves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no medium required to transfer wave energy 2 Mechanical
More informationMusic. Sound Part II
Music Sound Part II What is the study of sound called? Acoustics What is the difference between music and noise? Music: Sound that follows a regular pattern; a mixture of frequencies which have a clear
More informationChapter PREPTEST: SHM & WAVE PROPERTIES
2 4 Chapter 13-14 PREPTEST: SHM & WAVE PROPERTIES Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A load of 45 N attached to a spring that is hanging vertically
More informationSuperposition and Standing Waves
chapter 18 Superposition and Standing Waves 18.1 nalysis Model: Waves in Interference 18.2 Standing Waves 18.3 nalysis Model: Waves Under Boundary Conditions 18.4 Resonance 18.5 Standing Waves in ir Columns
More informationHarmonic Motion and Mechanical Waves. Jun 4 10:31 PM. the angle of incidence equals the angle of reflection.
Wave Properties Harmonic Motion and Mechanical Waves The law of reflection the angle of incidence equals the angle of reflection. The normal is an imaginary line that is perpendicular to the surface. The
More informationMusic: Sound that follows a regular pattern; a mixture of frequencies which have a clear mathematical relationship between them.
The Sound of Music Music: Sound that follows a regular pattern; a mixture of frequencies which have a clear mathematical relationship between them. How is music formed? By STANDING WAVES Formed due to
More informationA mechanical wave is a disturbance which propagates through a medium with little or no net displacement of the particles of the medium.
Waves and Sound Mechanical Wave A mechanical wave is a disturbance which propagates through a medium with little or no net displacement of the particles of the medium. Water Waves Wave Pulse People Wave
More informationPhysics 1C. Lecture 14C. "The finest words in the world are only vain sounds if you cannot understand them." --Anatole France
Physics 1C Lecture 14C "The finest words in the world are only vain sounds if you cannot understand them." --Anatole France Standing Waves You can also create standing waves in columns of air. But in air,
More informationPre Test 1. Name. a Hz b Hz c Hz d Hz e Hz. 1. d
Name Pre Test 1 1. The wavelength of light visible to the human eye is on the order of 5 10 7 m. If the speed of light in air is 3 10 8 m/s, find the frequency of the light wave. 1. d a. 3 10 7 Hz b. 4
More informationVersion 001 HW#1 - Vibrations & Waves arts (00224) 1
Version HW# - Vibrations & Waves arts (4) This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Superposition. points
More informationPhysics Standing Waves. Tues. 4/18, and Thurs. 4/20
Physics 116 2017 Standing Waves Tues. 4/18, and Thurs. 4/20 A long string is firmly connected to a stationary metal rod at one end. A student holding the other end moves her hand rapidly up and down to
More informationTHE PRINCIPLE OF LINEAR SUPERPOSITION AND INTERFERENCE PHENOMENA
THE PRINCIPLE OF LINEAR SUPERPOSITION AND INTERFERENCE PHENOMENA PREVIEW When two waves meet in the same medium they combine to form a new wave by the principle of superposition. The result of superposition
More informationWAVES. Chapter Fifteen MCQ I
Chapter Fifteen WAVES MCQ I 15.1 Water waves produced by a motor boat sailing in water are (a) neither longitudinal nor transverse. (b) both longitudinal and transverse. (c) only longitudinal. (d) only
More informationPhysics B Waves and Sound Name: AP Review. Show your work:
Physics B Waves and Sound Name: AP Review Mechanical Wave A disturbance that propagates through a medium with little or no net displacement of the particles of the medium. Parts of a Wave Crest: high point
More information1. At which position(s) will the child hear the same frequency as that heard by a stationary observer standing next to the whistle?
Name: Date: Use the following to answer question 1: The diagram shows the various positions of a child in motion on a swing. Somewhere in front of the child a stationary whistle is blowing. 1. At which
More informationChapter 17. The Principle of Linear Superposition and Interference Phenomena
Chapter 17 The Principle of Linear Superposition and Interference Phenomena 17.1 The Principle of Linear Superposition When the pulses merge, the Slinky assumes a shape that is the sum of the shapes of
More informationWaves and Modes. Part I. Standing Waves. A. Modes
Part I. Standing Waves Waves and Modes Whenever a wave (sound, heat, light,...) is confined to a finite region of space (string, pipe, cavity,... ), something remarkable happens the space fills up with
More informationSECTION A Waves and Sound
AP Physics Multiple Choice Practice Waves and Optics SECTION A Waves and Sound 2. A string is firmly attached at both ends. When a frequency of 60 Hz is applied, the string vibrates in the standing wave
More informationUniversity Physics (Prof. David Flory) Chapt_17 Monday, November 26, 2007 Page 1
University Physics (Prof. David Flory) Chapt_17 Monday, November 26, 2007 Page 1 Name: Date: 1. A 40-cm long string, with one end clamped and the other free to move transversely, is vibrating in its fundamental
More informationWaves and Sound. AP Physics 1
Waves and Sound AP Physics 1 What is a wave A WAVE is a vibration or disturbance in space. A MEDIUM is the substance that all SOUND WAVES travel through and need to have in order to move. Classes of waves
More informationMake-Up Labs Next Week Only
Make-Up Labs Next Week Only Monday, Mar. 30 to Thursday, April 2 Make arrangements with Dr. Buntar in BSB-B117 If you have missed a lab for any reason, you must complete the lab in make-up week. Energy;
More informationConcepts in Physics. Friday, November 26th 2009
1206 - Concepts in Physics Friday, November 26th 2009 Notes There is a new point on the webpage things to look at for the final exam So far you have the two midterms there More things will be posted over
More informationToday s Topic: Beats & Standing Waves
Today s Topic: Beats & Standing Waves Learning Goal: SWBAT explain how interference can be caused by frequencies and reflections. Students produce waves on a long slinky. They oscillate the slinky such
More informationPhysics 17 Part N Dr. Alward
Physics 17 Part N Dr. Alward String Waves L = length of string m = mass μ = linear mass density = m/l T = tension v = pulse speed = (T/μ) Example: T = 4.9 N μ = 0.10 kg/m v = (4.9/0.10) 1/2 = 7.0 m/s Shake
More information16.3 Standing Waves on a String.notebook February 16, 2018
Section 16.3 Standing Waves on a String A wave pulse traveling along a string attached to a wall will be reflected when it reaches the wall, or the boundary. All of the wave s energy is reflected; hence
More informationSECTION A Waves and Sound
AP Physics Multiple Choice Practice Waves and Optics SECTION A Waves and Sound 1. Which of the following statements about the speed of waves on a string are true? I. The speed depends on the tension in
More informationLecture 2: Acoustics
ELEN E4896 MUSIC SIGNAL PROCESSING Lecture 2: Acoustics 1. Acoustics, Sound & the Wave Equation 2. Musical Oscillations 3. The Digital Waveguide Dan Ellis Dept. Electrical Engineering, Columbia University
More informationAP PHYSICS WAVE BEHAVIOR
AP PHYSICS WAVE BEHAVIOR NAME: HB: ACTIVITY I. BOUNDARY BEHAVIOR As a wave travels through a medium, it will often reach the end of the medium and encounter an obstacle or perhaps another medium through
More informationCHAPTER WAVE MOTION
Solutions--Ch. 12 (Wave Motion) CHAPTER 12 -- WAVE MOTION 12.1) The relationship between a wave's frequency ν, its wavelength λ, and its wave velocity v is v = λν. For sound in air, the wave velocity is
More informationDemonstrate understanding of wave systems. Demonstrate understanding of wave systems. Achievement Achievement with Merit Achievement with Excellence
Demonstrate understanding of wave systems Subject Reference Physics 3.3 Title Demonstrate understanding of wave systems Level 3 Credits 4 Assessment External This achievement standard involves demonstrating
More informationName: Lab Partner: Section:
Chapter 11 Wave Phenomena Name: Lab Partner: Section: 11.1 Purpose Wave phenomena using sound waves will be explored in this experiment. Standing waves and beats will be examined. The speed of sound will
More informationThe quality of your written communication will be assessed in your answer. (Total 6 marks)
Q1.A stationary wave is formed on a stretched string. Discuss the formation of this wave. Your answer should include: an explanation of how the stationary wave is formed a description of the features of
More informationCopyright 2009 Pearson Education, Inc.
Chapter 16 Sound 16-1 Characteristics of Sound Sound can travel through h any kind of matter, but not through a vacuum. The speed of sound is different in different materials; in general, it is slowest
More informationVersion 001 HW#1 - Vibrations and Waves arts (00224) 1
Version HW# - Vibrations and Waves arts (4) This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Superposition 4.
More information3) For vibrational motion, the maximum displacement from the equilibrium point is called the
WAVES & SOUND Conceptual Questions 1) The time for one cycle of a periodic process is called the 2) For a periodic process, the number of cycles per unit time is called the 3) For vibrational motion, the
More informationStanding Waves. Lecture 21. Chapter 21. Physics II. Course website:
Lecture 21 Chapter 21 Physics II Standing Waves Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsii Lecture Capture: http://echo360.uml.edu/danylov201415/physics2spring.html Standing
More informationWelcome to PHYS 1240 Sound and Music Professor John Price. Cell Phones off Laptops closed Clickers on Transporter energized
Welcome to PHYS 1240 Sound and Music Professor John Price Cell Phones off Laptops closed Clickers on Transporter energized Guitar Tuning bar pair Big string Gong rod Beats: Two Sources with Slightly Different
More informationa. Determine the wavelength of the sound. b. Determine the speed of sound in the air inside the tube.
1995B6. (10 points) A hollow tube of length Q. open at both ends as shown above, is held in midair. A tuning fork with a frequency f o vibrates at one end of the tube and causes the air in the tube to
More informationThe Principle of Superposition
The Principle of Superposition If wave 1 displaces a particle in the medium by D 1 and wave 2 simultaneously displaces it by D 2, the net displacement of the particle is simply D 1 + D 2. Standing Waves
More informationPHYSICS 102N Spring Week 6 Oscillations, Waves, Sound and Music
PHYSICS 102N Spring 2009 Week 6 Oscillations, Waves, Sound and Music Oscillations Any process that repeats itself after fixed time period T Examples: Pendulum, spring and weight, orbits, vibrations (musical
More informationFinal Reg Wave and Sound Review SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Final Reg Wave and Sound Review SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1) What is the frequency of a 2.5 m wave traveling at 1400 m/s? 1) 2)
More informationClassical Mechanics Lecture 24
Classical Mechanics Lecture 24 Today s Concepts: A) Superposi6on B) Standing Waves Mechanics Lecture 24, Slide 1 Case A y CheckPoint v x y Case B v x Suppose a pulse in Case A described by the func6on
More informationANS: D PTS: 2 DIF: Average
1. The wavelength of light visible to the human eye is on the order of 5 10 7 m. If the speed of light in air is 3 10 8 m/s, find the frequency of the lightwave. a. 3 10 7 Hz b. 4 10 9 Hz 5 10 11 Hz d.
More informationStanding Waves + Reflection
Standing Waves + Reflection Announcements: Will discuss reflections of transverse waves, standing waves and speed of sound. We will be covering material in Chap. 16. Plan to review material on Wednesday
More information(a) What is the tension in the rope? (b) With what frequency must the rope vibrate to create a traveling wave with a wavelength of 2m?
1. A rope is stretched between two vertical supports. The points where it s attached (P and Q) are fixed. The linear density of the rope, μ, is 0.4kg/m, and the speed of a transverse wave on the rope is
More informationResonance in Air Columns
Resonance in Air Columns When discussing waves in one dimension, we observed that a standing wave forms on a spring when reflected waves interfere with incident waves. We learned that the frequencies at
More informationGet Solution of These Packages & Learn by Video Tutorials on EXERCISE-1
EXERCISE-1 SECTION (A) : EQUATION OF TRAVELLING WAVE (INCLUDING SINE WAVE) A 1. The wave function for a traveling wave on a taut string is (in SI units) s(x, t) = (0.350 m) sin (10πt 3πx + π/4) (a) What
More informationSTANDING WAVES MISN STANDING WAVES by J. S. Kovacs, Michigan State University
STANDING WAVES STANDING WAVES by J. S. Kovacs, Michigan State University 1. Introduction a. Properties of Running Waves............................ 1 b. Standing Waves and Normal Modes.....................
More informationSound, acoustics Slides based on: Rossing, The science of sound, 1990.
Sound, acoustics Slides based on: Rossing, The science of sound, 1990. Acoustics 1 1 Introduction Acoustics 2! The word acoustics refers to the science of sound and is a subcategory of physics! Room acoustics
More informationOscillations. Waves. Sound. Stationary waves. Acoustics of Buildings
Oscillations Waves & Sound Oscillations Waves Sound Stationary waves Acoustics of Buildings 01. The maximum velocity of a body in S.H.M.is 0.25m/s and maximum acceleration is 0.75m/s 2, the period of S.H.M.
More informationChapter 14, Sound. 1. When a sine wave is used to represent a sound wave, the crest corresponds to:
CHAPTER 14 1. When a sine wave is used to represent a sound wave, the crest corresponds to: a. rarefaction b. condensation c. point where molecules vibrate at a right angle to the direction of wave travel
More informationChapter 23: Superposition, Interference, and Standing Waves
Chapter 3: Superposition, Intererence, and Standing Waves Previously, we considered the motion o a single wave in space and time What i there are two waves present simultaneously in the same place and
More informationMAKE SURE TA & TI STAMPS EVERY PAGE BEFORE YOU START
Laboratory Section: Last Revised on September 21, 2016 Partners Names: Grade: EXPERIMENT 11 Velocity of Waves 1. Pre-Laboratory Work [2 pts] 1.) What is the longest wavelength at which a sound wave will
More informationInterference of sound waves. Sound II. Interference due to path difference. Noise canceling headphones. Interference. Interference
Sound II. of sound waes Standing waes Complex sound waes of sound waes Two sound waes superimposed Constructie Destructie Noise canceling headphones Noise Wae Wae Anti-noise Wae Wae due to path difference
More informationCh17. The Principle of Linear Superposition and Interference Phenomena. The Principle of Linear Superposition
Ch17. The Principle of Linear Superposition and Interference Phenomena The Principle of Linear Superposition 1 THE PRINCIPLE OF LINEAR SUPERPOSITION When two or more waves are present simultaneously at
More informationL 23 Vibrations and Waves [3]
L 23 Vibrations and Waves [3] resonance clocks pendulum springs harmonic motion mechanical waves sound waves golden rule for waves musical instruments The Doppler effect Doppler radar radar guns Review
More informationIntroduction. Physics 1CL WAVES AND SOUND FALL 2009
Introduction This lab and the next are based on the physics of waves and sound. In this lab, transverse waves on a string and both transverse and longitudinal waves on a slinky are studied. To describe
More informationProperties and Applications
Properties and Applications What is a Wave? How is it Created? Waves are created by vibrations! Atoms vibrate, strings vibrate, water vibrates A wave is the moving oscillation Waves are the propagation
More information1) The time for one cycle of a periodic process is called the A) period. B) frequency. C) wavelength. D) amplitude.
Practice quiz for engineering students. Real test next Tuesday. Plan on an essay/show me work question as well. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers
More informationAS Physics Unit 5 - Waves 1
AS Physics Unit 5 - Waves 1 WHAT IS WAVE MOTION? The wave motion is a means of transferring energy from one point to another without the transfer of any matter between the points. Waves may be classified
More informationWaves & Interference
Waves & Interference I. Definitions and Types II. Parameters and Equations III. Sound IV. Graphs of Waves V. Interference - superposition - standing waves The student will be able to: HW: 1 Define, apply,
More information= 2n! 1 " L n. = 2n! 1 # v. = 2n! 1 " v % v = m/s + ( m/s/ C)T. f 1. = 142 Hz
Chapter 9 Review, pages 7 Knowledge 1. (b). (c) 3. (b). (d) 5. (b) 6. (d) 7. (d) 8. (b) 9. (a) 10. (c) 11. (a) 1. (c) 13. (b) 1. (b) 15. (d) 16. False. Interference does not leave a wave permanently altered.
More informationPhysics I Notes: Chapter 13 Sound
Physics I Notes: Chapter 13 Sound I. Properties of Sound A. Sound is the only thing that one can hear! Where do sounds come from?? Sounds are produced by VIBRATING or OSCILLATING OBJECTS! Sound is a longitudinal
More informationPC1141 Physics I. Speed of Sound. Traveling waves of speed v, frequency f and wavelength λ are described by
PC1141 Physics I Speed of Sound 1 Objectives Determination of several frequencies of the signal generator at which resonance occur in the closed and open resonance tube respectively. Determination of the
More informationChapter 16. Waves and Sound
Chapter 16 Waves and Sound 16.1 The Nature of Waves 1. A wave is a traveling disturbance. 2. A wave carries energy from place to place. 1 16.1 The Nature of Waves Transverse Wave 16.1 The Nature of Waves
More informationStudy of Standing Waves to Find Speed of Sound in Air
Study of Standing Waves to Find Speed of Sound in Air Purpose Using mobile devices as sound analyzer and sound generator to study standing waves and determine the speed of sound in air. Theory The velocity
More informationKey Vocabulary: Wave Interference Standing Wave Node Antinode Harmonic Destructive Interference Constructive Interference
Key Vocabulary: Wave Interference Standing Wave Node Antinode Harmonic Destructive Interference Constructive Interference 1. Work with two partners. Two will operate the Slinky and one will record the
More informationQuiz on Chapters 13-15
Quiz on Chapters 13-15 Chapter 16 Waves and Sound continued Final Exam, Thursday May 3, 8:00 10:00PM ANH 1281 (Anthony Hall). Seat assignments TBD RCPD students: Thursday May 3, 5:00 9:00PM, BPS 3239.
More information(i) node [1] (ii) antinode...
1 (a) When used to describe stationary (standing) waves explain the terms node...... [1] (ii) antinode....... [1] (b) Fig. 5.1 shows a string fixed at one end under tension. The frequency of the mechanical
More informationPHYS102 Previous Exam Problems. Sound Waves. If the speed of sound in air is not given in the problem, take it as 343 m/s.
PHYS102 Previous Exam Problems CHAPTER 17 Sound Waves Sound waves Interference of sound waves Intensity & level Resonance in tubes Doppler effect If the speed of sound in air is not given in the problem,
More informationFrom Last Time Wave Properties. Description of a Wave. Water waves? Water waves occur on the surface. They are a kind of transverse wave.
From Last Time Wave Properties Amplitude is the maximum displacement from the equilibrium position Wavelength,, is the distance between two successive points that behave identically Period: time required
More informationFrequency f determined by the source of vibration; related to pitch of sound. Period T time taken for one complete vibrational cycle
Unit 1: Waves Lesson: Sound Sound is a mechanical wave, a longitudinal wave, a pressure wave Periodic sound waves have: Frequency f determined by the source of vibration; related to pitch of sound Period
More informationChapter 9: Wave Interactions
Chapter 9: Wave Interactions Mini Investigation: Media Changes, page 15 A. In each situation, the transmitted wave keeps the orientation of the original wave while the reflected wave has the opposite orientation.
More informationb) (4) How large is the effective spring constant associated with the oscillations, in N/m?
General Physics I Quiz 7 - Ch. 11 - Vibrations & Waves July 22, 2009 Name: Make your work clear to the grader. Show formulas used. Give correct units and significant figures. Partial credit is available
More informationSUMMARY. ) f s Shock wave Sonic boom UNIT. Waves transmit energy. Sound is a longitudinal mechanical wave. KEY CONCEPTS CHAPTER SUMMARY
UNIT D SUMMARY KEY CONCEPTS CHAPTER SUMMARY 9 Waves transmit energy. Crest, trough, amplitude, wavelength Longitudinal and transverse waves Cycle Period, frequency f 1_ T Universal wave equation v fλ Wave
More informationg L f = 1 2π Agenda Chapter 14, Problem 24 Intensity of Sound Waves Various Intensities of Sound Intensity Level of Sound Waves
Agenda Today: HW #1 Quiz, power and energy in waves and decibel scale Thursday: Doppler effect, more superposition & interference, closed vs. open tubes Chapter 14, Problem 4 A 00 g ball is tied to a string.
More informationPhysics 41 Superposition Chapter 21 Knight HW # 4
Physics 4 uperposition Chapter Knight HW # 4 Knight nd Ed Exercises and Probles:,, 9,, 4, 6, 8,,3, 7, 8, 9, 4, 49, 68, 74, 77 ) Left: The graph at t.0 s differs fro the graph at t 0.0 s in that the left
More informationWarm-Up. Think of three examples of waves. What do waves have in common? What, if anything, do waves carry from one place to another?
Warm-Up Think of three examples of waves. What do waves have in common? What, if anything, do waves carry from one place to another? WAVES Physics Waves If you can only remember one thing Waves transmit
More information10/24/ Teilhard de Chardin French Geologist. The answer to the question is ENERGY, not MATTER!
Someday, after mastering the winds, the waves, the tides and gravity, we shall harness for God the energies of love, and then, for a second time in the history of the world, man will have discovered fire.
More informationStanding waves in a string
Standing waves in a string Introduction When you shake a string, a pulse travels down its length. When it reaches the end, the pulse can be reflected. A series of regularly occurring pulses will generate
More informationName: Date: Period: IB Physics SL Y2 Option A (Sight and Wave Phenomena Part 1) Midterm Exam Study Guide Exam Date: Thursday, March 12, 2015
Name: Date: Period: Objectives: IB Physics SL Y2 Option A (Sight and Wave Phenomena Part 1) Midterm Exam Study Guide Exam Date: Thursday, March 12, 2015 A.1.1 Describe the basic structure of the human
More informationCHAPTER 11 TEST REVIEW -- MARKSCHEME
AP PHYSICS Name: Period: Date: 50 Multiple Choice 45 Single Response 5 Multi-Response Free Response 3 Short Free Response 2 Long Free Response MULTIPLE CHOICE DEVIL PHYSICS BADDEST CLASS ON CAMPUS AP EXAM
More informationResonance Tube. 1 Purpose. 2 Theory. 2.1 Air As A Spring. 2.2 Traveling Sound Waves in Air
Resonance Tube Equipment Capstone, complete resonance tube (tube, piston assembly, speaker stand, piston stand, mike with adapters, channel), voltage sensor, 1.5 m leads (2), (room) thermometer, flat rubber
More informationStandingWaves_P2 [41 marks]
StandingWaves_P2 [41 marks] A loudspeaker emits sound towards the open end of a pipe. The other end is closed. A standing wave is formed in the pipe. The diagram represents the displacement of molecules
More informationOSCILLATIONS and WAVES
OSCILLATIONS and WAVES Oscillations Oscillations are vibrations which repeat themselves. EXAMPLE: Oscillations can be driven externally, like a pendulum in a gravitational field EXAMPLE: Oscillations can
More informationDate Period Name. Write the term that corresponds to the description. Use each term once. beat
Date Period Name CHAPTER 15 Study Guide Sound Vocabulary Review Write the term that corresponds to the description. Use each term once. beat Doppler effect closed-pipe resonator fundamental consonance
More informationPHY1 Review for Exam 9. Equations. V = 2πr / T a c = V 2 /r. W = Fdcosθ PE = mgh KE = ½ mv 2 E = PE + KE
Topics Simple Harmonic Motion Springs Pendulums Waves Transverse Longitudinal Pulse Continuous Interference Refraction Diffraction Equations V = 2πr / T a c = V 2 /r F = ma F F = µf N W = Fdcosθ PE = mgh
More information