WAVES( SUB) 2. What is the property of the medium that is essential for the propagation of mechanical wave? Ans: Elasticity and inertia
|
|
- Baldwin Strickland
- 6 years ago
- Views:
Transcription
1 WAES( SUB). What is meant by a wave? Ans: The disturbance set up in a medium is known as a wave. What is the property of the medium that is essential for the propagation of mechanical wave? Ans: Elasticity and inertia 3. Which physical quantity does not change when a wave travels from one medium to another? Ans: Frequency. 4. What is a progressive wave? Ans: A wave which travels continuously in a medium in the same direction is called a progressive wave. 5. If y = sin (40t x) represents a progressive wave. What is its frequency? Ans: y = sin (40t x) y = sin 40 (t x/0) comparing this with y = a sin (wt x/v) w = f=40 f=0hz 6. Two waves are represented by the equation y = a sin (wt kx) and Y =a cos (wt kx). What is the phase difference between them? Ans: π radians 7. What is meant by phase of a particle in a wave? Ans: phase of a particle at any instant represents the state of vibration of the particle at that instant. It indicates the relative position of the particle with respect to the origin. 8. What is a mechanical wave? Ans: A wave which requires a medium to propagate is known as mechanical wave 9. Give an example for a two dimensional wave Ans: Light wave. Water waves 0. How does velocity of sound vary with Pressure? Ans: elocity of sound is independent of pressure.. What is a transverse wave? Ans: In a transverse wave, the particles of the medium are vibrating perpendicular to the direction of wave propagation. BYJU s The World s Biggest K- Learning App
2 0. What is the angle between vibration of particle of medium and direction of propagation of wave in transverse wave? A: How does velocity of sound vary with temperature? Ans: elocity of sound is proportional to square root of the temperature. 3. How does velocity of sound vary with humidity? Ans: velocity of sound increases with increase in humidity 5. Why sound travels faster in moist air than in dry air? Ans: Density of moist air is less than that of dry air. As the velocity of sound in gas is inversely proportional to the square root of its density, the velocity of sound in moist air is greater than that of dry air. 6. A wave has a velocity of 330m/s at atmospheric pressure. What will be its velocity at 4 atmospheric pressure? Ans: 330 ms - 7. What are beats? Ans: The rise and fall in the intensity of sound due to super position of two sound waves of slightly different frequencies travelling in the same direction is known as beats 8. What is beat frequency? Ans: The number of beats heard per second is known as beat frequency. 9. Define beat period. Ans: Time interval between two consecutive maxima or minima is called beat period. 0. What is audible range of sound frequencies? Ans: 0 0KHz. By how much do the frequencies of two sound sources differ, if they produce ten beats in two seconds? Ans: Number of beats per second = 0/ = 5f = f f = 5Hz. Define reverberation. Ans: Reverberation is defined as the persistence of audible sound even after the source has ceased to produce the sound. 3. What is stationary wave? Ans: The wave formed due to the super position of two identical waves (having same amplitude and frequency), travelling with same speed, in opposite direction is called a stationary or standing wave. 4. What is fundamental frequency? Ans: The lowest frequency with which a body vibrates is called the fundamental frequency. BYJU s The World s Biggest K- Learning App
3 5. What are over tones Ans: Frequencies with which a body vibrates which is greater than fundamental frequency is over tones. 6. What are over tones? Ans: Over tones which are integral multiple of the fundamental frequency are called harmonics. 7. The length of vibrating portion of the sonometer wire is doubled. How does the frequency change? Ans: Halved 8. Give the relation between the fundamental note and over tone in open pipe. Ans: f = (n+)f f = fundamental frequency n =,,3 for first and second overtones 9. The fundamental frequency produced in a closed pipe is 500Hz. What is the frequency of the first over tone? Ans: 500Hz 30. Find the distance between node and adjacent antinodes if the wave length is 4m in a stationary wave. Ans: Distance between node and adjacent antinodes are given by; λ 4 = 4 4 = m 3. Explain why is it NOT possible to have interference between the waves produced by sitars? Ans: Because the wave produced will not have a constant phase difference. 3. Which harmonics are present in a closed organ pipe? Ans: All odd harmonic are present in a closed pipe. 33. What will be the resultant amplitude when two waves Y = asinwt and Y =acoswt are superposed at any point at a particular instant? Ans: y = y +y =asinwt + acoswt= a sin wt + π 4 Resultant amplitude= a 34. State the factors in which the speed of a wave travelling along a stretched ideal string depends. Ans: Tension and mass per unit length 35. Fundamental frequency of oscillation of a close pipe is 400Hz. What will be fundamental frequency of oscillation of open pipe of same length? Ans: f e = v/l = 400Hz F o = v/4l f o = f e = X 400 = 800 Hz 36. Why is it difficult some times to recognize your friends voice on phone? Ans: Because of modulation 37. In which of the following media can pass a longitudinal wave pass through? Air, water or iron? Ans: It can pass through all states of matter. BYJU s The World s Biggest K- Learning App
4 Two Marks Question 38. Explain the different type of waves (based on medium). Ans: waves are classified into two types: i) Mechanical waves: Waves which requires a medium for their propagation are known as mechanical wave. Eg.Waves on the surface of water, seismic waves (due to earth quake), sound waves, waves on a stretched string. ii) Non mechanical wave: waves which do not require a medium for their propagation are known as non mechanicalwae. Eg. Light waves, heat waves radio waves. 39. The equation of a progressive wave is y=0.sin(50t 0.5x). Find the amplitude and magnitude of the velocity,if x and y are in meters. Ans: Given equation is:y = 0.sin(50t 0.5x)= 0.sin 50 (t x/00) Comparing this with y = asin w (t-x/v) Amplitude a= 0.mand elocity v = 00 m/s 40. State the principle of superposition. Name the phenomenon produced due to the superposition of waves. Ans: When two or more waves superpose the resultant displacement of particle of the medium is equal to the vector sum of the displacements due to the individual waves. Superposition of waves leads to the phenomenon of interference, diffraction; beats and formation of stationary waves are due to the superposition at waves. 4. What is a longitudinal wave: Give an example Ans: If the particles of a medium vibrate along the direction of wave propagation then that wave is known as longitudinal wave.eg.sound waves in air are longitudinal waves. 4. The distance between two points is0.m; If the phase difference between these points is / radians. Calculate the wavelength rad Ans: =0.m 0. or 0.4m / 43. How does frequency of a tuning fork change when the prongs are (i)filed (ii)waxed Ans: (i) When the prongs of a tuning fork are filed its frequency increases (ii) The frequency of a tuning fork decreases when the tuning fork is waxed. 44. What is meant by beat? What are its applications? Ans: The periodic rise and fall in the intensity of sound due to its superposition of two sound waves of slightly different frequencies travelling in the same direction are known as beats. BYJU s The World s Biggest K- Learning App
5 The phenomenon of beat can be used: (i) To determine the unknown frequency of a tuning fork. (ii) In tuning musical instruments. 45. What is Doppler Effect? Given examples Ans: The apparent change in the frequency of sound due to the relative motion between the source and the observer is known as the Doppler effect. Eg. The apparent frequency of the whistle of a train increases as it approaches an observer on the platform and decreases when the train passes the observer. 46. What are the uses of the Doppler effect? Ans: a. Doppler effect is used in radar system to detect the speed of automobiles and aeroplanes. b. It is used in the determination of speed of the submarines c. it is used to determine the speed of stars and planets and other celestial bodies. 47. When two tuning forks A and X are sounded together, they produce 6 beats per seconds. The beat frequency decreases on filing the fork of A. If the frequency of A is 34Hz,what is the frequency of X? Ans: f A = 34Hz f x =?F b = 6beats /s f b =f a fx f x = f A f B = 34 6= 335Hz or 347 Hz. Since the frequency of A increases on filing, and the beat frequency decreases, frequency of X should be more than that of A. Hence its frequency of X =347Hz. 48. What are nodes and antinodes in a stationary wave? Ans: The point in the stationary wave where amplitude of vibration of the particles is zero is called as nodes. The points in a stationary wave where amplitudes of vibration of particles are maximum are called antinodes. 49. An open pipe and closed have the same fundamental frequency. Explain how their lengths are related. Ans: Fundamental frequency of an open pipe = f = / fundamental frequency of a closed pipe = f = /4 Since f = f, l : L = : 50. Mention any four characteristics of a stationary wave. Ans: (i) stationary wave do not move in any direction. (ii) There is no transfer of energy (iii) All the particles in a loop are in the same phase and they are in opposite phase with respect to adjacent loop (iv) Amplitudes are different for different particles. )The fundamental frequency produced in a closed pipe is 00Hz. What are the frequencies of first and second overtone? ANS: first overtone is 300 Hz and second overtone is 500Hz. BYJU s The World s Biggest K- Learning App
6 t x ) The equation for transverse wave on a string is y = 4 sin with length expressed in centimeter and time in second. Calculate the wave velocity and maximum particle velocity t x Ans: Given y = 4sin Hence,T = 0.05s, cm wave velocity = / T= /5 0 - = 0 ms - dy t x Practical velocity = 4. cos dt Maximum velocity max = AW = ms What is meant by RADAR and SONAR? How are long distancesmeasured using these techniques Ans: RADAR: Radio detecting and ranging SONAR: Sound navigation and ranging The waves produced by the device are sent and are reflected by bodies and reflected them back. If speed of wave is known and time for to and fro journey, the distance can be estimate. Four and Five mark Questions: Ans:. Distinguish between longitudinal and transverse waves. Longitudinal wave Transverse wave. The vibration of particles of the medium is. The vibration of particles of the medium is along the direction of wave propagation perpendicular to the direction of wave propagation. The wave propagates by forming alternate. The wave propagates by forming compressions and rarefactions alternate crests and troughs 3. These waves can travel in solids, liquids 3. These waves can travel in solids and and gases liquid surfaces 4. These waves cannot be polarized 4. These waves can be polarized 5. Distance between two successive 5. Distance between two successive crests or compression or rarefactions is equal to troughs is equal to wave length wave length Ans:. What are the characteristic of progressive wave?. A progressive wave is formed due to continuous vibrations of particles of the medium. The wave travels with certain velocity. BYJU s The World s Biggest K- Learning App
7 3. Energy and momentum are carried by the wave 4. No particles in the medium are at rest. 5. All particles in medium vibrate with same amplitude 6. Phase changes continuously from particle to particle. 3. State Newton s formula for the velocity of sound in a gas. What is Laplace s correction? Explain Ans: According to Newton. elocity of sound in any medium is given by E v, where E is modulus of elasticity and is density of medium. B For gasses E = B. v =, () p Newton assumed that propagation of sound in gasses is isothermal, isothermal bulk modulus B =P, pressure of gas. P v, p This is Newton s formula for velocity of sound in a gas. Laplace s correction: Laplace assumed that propagation of sound in gasses is not isothermal, but it s due to adiabatic. Adiabatic bulk modulus for gases B = y P Where y is the ration of specific heats of gas? v = P, This equation is called Newton Laplace s equation. 4) Discuss the variation of velocity of sound with a) Pressure b) Temperature c) Humidity d) wind Ans; a) Effect of pressure According to Boyle s law, at constant temperature pressure of gas of give mass is directly proportional to its density P = constant From the equation P P v, are constant. Thus velocity of sound is independent of pressure b) Effect of temperature BYJU s The World s Biggest K- Learning App
8 elocity of sound = P P RT ( From ideal gas equation P= m RT m m M M ) v T elocity of sound in gas increases with increase in temperature c) Effect of humidity: presence of water vapour in air reduces the density of air. Density of dry air is greater than moist air. As velocity of sound in moist air is greater than that in dry air. Thus with increase in humidity velocity of sound also increases. d) Effect of wind: Let v, w be the velocity of sound, wind respectively If wind blow in the direction of sound then resultant velocity of sound is (v + w) If wind blows against sound waves then resultant velocity of sound is ( v w) 5) Explain the theory of beats v Ans: Consider two sound waves of same amplitude a and slightly different frequencies n and n traveling in the same direction. The displacement of particle in a time t due to the two waves is. y = a sin w t; y = a sin w t w w t w w t y=a sin cos y = a n n t (n n t sin cos n n t n n t y = A sin wherea a cos is the amplitude of resultant wave. The intensity of resultant of wave is maximum when A is maximum A is maximum when cos n n t = (n n )t i.e 0,,,3 t = 0, 3,,,.. n n n n n n BYJU s The World s Biggest K- Learning App
9 The interval between successive maxima is T b = n n, The number of times intensity of sound becomes maximum per second is nb =, n n. Hence beat T b frequency is difference between the frequencies of the two waves. 4. Derive general expression for apparent frequency when the source moves toward s the observer and observer moving away from the source. Ans: S S - P ---s------s-----o---- o Consider a source S emitting sound of frequency f. Let v be the velocity of sound. Let the source move towards the observer with a velocity s and the observer move away from source with the velocity 0. In one second source emits f waves such that these waves will be contained in a length S P = s s The apartment wave length of these waves is () f These waves approach the observer with a relative velocity o The number of waves received by the observer in one second or apparent frequency is s f o o f = f s = o This is the general expression for apartment frequency. 5. Explain how the frequency of tuning force is determined using beats Ans: Consider a tuning fork A of unknown frequency f and other fork B of known frequency f. When A and B are sounded together let m beats are heard per sec. f = f m Let one of the prongs of tuning fork B is loaded with a bit of wax. The two forks are again sounded together let m be used of beats heard per sec BYJU s The World s Biggest K- Learning App
10 If, i.e. beats increase after adding wax, then the real frequency of B is f = f m If m f m, i.e. beats decrease or remains same after adding wax, then real frequency of B is 6. Distinguish between Stationarywave and Progressive wave. Ans: Stationary wave Progressive wave Stationary wave is formed by superposition of two A progressive wave is formed due to continuous identical progressive waves travelling in opposite vibration of the particles of the medium direction Stationary wave doesn t travel in any direction Progressive wave travels with certain velocity There is no flow of energy Progressive wave transports energy. Particles at the nodes are at rest No particle in medium is at rest Different particles vibrate with different aptitudes All the particles vibrate with same amplitude All the particles in loop are in same phase and they Phase changes continuously from particle to are in opposite phase with respect to particles in particle. adjacent loops 0. What is closed pipe? Show that the overtones in a closed pipe are odd harmonics of the fundamental. (Or) Discuss the modes of vibration of air in a closed pipe. Ans: A pipe opened at one end and closed at other end is called closed pipe f = f m Consider a closed pipe of length L. let be the velocity of sound in air. The air column in a closed pipe vibrates in such a way that always displacement antinodes is formed at opened end and displacement node is formed is closed end. Let f, f, and f 3 be the frequencies and, and 3 be the wave lengths of st, nd and 3 rd modes of vibration respectively. For fundamental mode.: L 4L ;But f f L BYJU s The World s Biggest K- Learning App
11 For nd mode or st overtone: L 3 4L ; But f f L 3 For 3 rd mode or nd overtone : L 5 4L From (), () and (3) f f : f : 3: 5 : 3 3 ; But f3 f L In the case of a closed pipe the frequency of overtones are odd harmonics of the fundamental.. What is an open pipe? Show that overtones in opened pipe are harmonics of fundamental. (Or) Discuss the modes of vibration in an open pipe. Ans: A pipe which is open at both ends is called open pipe. Consider an open pipe of length L. let be the velocity of sound in air. The air column in an open pipe vibrates in such a way that always antinodes are at open ends. Let f, f and f3 be the frequencies and be the wave lengths of st, nd and 3 rd modes of vibration respectively. 5 For fundamental mode: L L ; But f f... L For nd mode or st overtone: L But f f f... L For 3 rd mode or nd overtone : L 3 L But f3 f3 3f L From (), () and (3) f : f ; f 3 = ; : 3 In the case of a closed pipe the frequency of overtones are odd harmonics of the fundamental. BYJU s The World s Biggest K- Learning App
12 . Derive an expression for fundamental frequency in case of stretched string. Ans: In the fundamental mode of vibration of the string, there will be an antinode in between two nodes at two fixed points. If L is the length of string then L L... elocity of the wave along the string is T... where T is tension in the string and is linear density of the string Fundamental frequency of the string is f, L from eq n () T f, fromeq n () L 3. Derive the equation for a stationary wave. A: The equation of two waves having the same amplitude, wavelength and speed but propagating in opposite directions is, y asin vt xand y asin vt x Where a is the amplitude, is the wavelength and v is the velocity of the wave. The resultant displacement of a particle os given by, y y y asin vt x asin vt x hence we have, y a cos x.sin vt = A sin vt Where A=a cos x represents the amplitude of the resultant wave. 4. Given below are some examples of wave motion. State in each case if the motion is transverse, longitudinal or a combination of both. a) Motion of a kink in a long spring produced by displacing one end of the spring sideways. b) Wave produced in a cylinder containing water by moving its piston back and forth. c) Wave produced by a motor boat sailing in water. BYJU s The World s Biggest K- Learning App
13 d) Ultrasonic waves in air produced by a vibrating crystal. A: (a) longitudinal wave(b) Transverse wave.(c) Combination of both.(d) Longitudinal wave. 5. What do you mean by wave motion? Discuss its four important characteristics. A: Wave motion is motion where the energy is transferred without the actual movement of the material particles. Four Characteristics: i) It is a simple harmonic motion. ii) Energy is transported without material shift. iii) elocity of waves depends on the medium. (only for the longitudinal waves) iv) The particles oscillate in SHM. 6. A simple harmonic wave is expressed by the equation y = 7 x 0-4 sin( 800t x )Where y and x are in 4.5 centimeter and t is in seconds. Calculate the following. (i) Amplitude. (ii) Frequency. (iii) Wavelength.(iv) Wave velocity(v) Phase difference between two particles separated by 7.0cms. All dimensions are in CGS units. A: y= 7 x 0-4 sin( 800t x ) 4.5 (i) Amplitude = 7 x 0-4 cm. (ii) Frequency f w/ 800 / 400Hz (ii) Wavelength / k 85cm (iv) Wave velocity = v = w/k 34000cm s. 4.5 (v0phase difference X Path difference x / 5 rad BYJU s The World s Biggest K- Learning App
Wave Motion Wave and Wave motion Wave is a carrier of energy Wave is a form of disturbance which travels through a material medium due to the repeated periodic motion of the particles of the medium about
More informationDownloaded from
Chapter 15 (Waves) Multiple Choice Questions Single Correct Answer Type Q1. Water waves produced by a motorboat sailing in water are (a) neither longitudinal nor transverse (b) both longitudinal and transverse
More informationMarketed and Distributed By FaaDoOEngineers.com
WAVES GUPTA CLASSES For any help contact: 995368795, 968789880 Nishant Gupta, D-, Prashant vihar, Rohini, Delhi-85 Waves Wave motion A wave motion is a kind of disturbance which is transferred from one
More informationThe velocity (v) of the transverse wave in the string is given by the relation: Time taken by the disturbance to reach the other end, t =
Question 15.1: A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string, how long does the disturbance
More informationEinstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : ,
PW W A V E S PW CONCEPTS C C Equation of a Travelling Wave The equation of a wave traveling along the positive x-ax given by y = f(x vt) If the wave travelling along the negative x-ax, the wave funcion
More informationWAVE MOTION. Synopsis :
WAE MOTION Synopsis : 1 Sound is a form of energy produced by a vibrating body, which requires medium to travel Sound travels in the form of waves 3 The audiable sound has frequency range 0 Hz to 0 khz
More informationEinstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : ,
PW W A V E S Syllabus : Wave motion. Longitudinal and transverse waves, speed of wave. Dplacement relation for a progressive wave. Principle of superposition of waves, reflection of waves, Standing waves
More informationProducing a Sound Wave. Chapter 14. Using a Tuning Fork to Produce a Sound Wave. Using a Tuning Fork, cont.
Producing a Sound Wave Chapter 14 Sound Sound waves are longitudinal waves traveling through a medium A tuning fork can be used as an example of producing a sound wave Using a Tuning Fork to Produce a
More informationTransverse Wave - Only in solids (having rigidity), in liquids possible only on the surface. Longitudinal Wave
Wave is when one particle passes its motion to its neighbour. The Elasticity and Inertia of the medium play important role in the propagation of wave. The elasticity brings the particle momentarily at
More informationCHAPTERS WAVES SOUND STATIONARY WAVES ACOUSTICSOF BUILDINGS
CET -IPUC: PHYSICS Unit VI : WAVES and SOUND CHAPTERS OSCILLATIONS WAVES SOUND STATIONARY WAVES ACOUSTICSOF BUILDINGS Particle acceleration: a = Aω 2 sinωt= ω 2 y Maximum acceleration: a max = A ω 2 The
More informationLorik educatinal academy vidya nagar
Lorik educatinal academy vidya nagar ========================================================== PHYSICS-Wave Motion & Sound Assignment. A parachutist jumps from the top of a very high tower with a siren
More informationSound Waves. Sound waves are longitudinal waves traveling through a medium Sound waves are produced from vibrating objects.
Sound Waves Sound waves are longitudinal waves traveling through a medium Sound waves are produced from vibrating objects Introduction Sound Waves: Molecular View When sound travels through a medium, there
More informationSIMPLE HARMONIC MOTION
WAVES SIMPLE HARMONIC MOTION Simple Harmonic Motion (SHM) Vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium TYPES OF SHM THE PENDULUM
More informationChapter 2 SOUND WAVES
Chapter SOUND WAVES Introduction: A sound wave (or pressure or compression wave) results when a surface (layer of molecules) moves back and forth in a medium producing a sequence of compressions C and
More informationOscillation the vibration of an object. Wave a transfer of energy without a transfer of matter
Oscillation the vibration of an object Wave a transfer of energy without a transfer of matter Equilibrium Position position of object at rest (mean position) Displacement (x) distance in a particular direction
More informationSection 1 Simple Harmonic Motion. The student is expected to:
Section 1 Simple Harmonic Motion TEKS The student is expected to: 7A examine and describe oscillatory motion and wave propagation in various types of media Section 1 Simple Harmonic Motion Preview Objectives
More information16 SUPERPOSITION & STANDING WAVES
Chapter 6 SUPERPOSITION & STANDING WAVES 6. Superposition of waves Principle of superposition: When two or more waves overlap, the resultant wave is the algebraic sum of the individual waves. Illustration:
More information1) The K.E and P.E of a particle executing SHM with amplitude A will be equal to when its displacement is:
1) The K.E and P.E of a particle executing SHM with amplitude A will be equal to when its displacement is: 2) The bob of simple Pendulum is a spherical hallow ball filled with water. A plugged hole near
More informationCHAPTER 11 VIBRATIONS AND WAVES
CHAPTER 11 VIBRATIONS AND WAVES http://www.physicsclassroom.com/class/waves/u10l1a.html UNITS Simple Harmonic Motion Energy in the Simple Harmonic Oscillator The Period and Sinusoidal Nature of SHM The
More information1 f. result from periodic disturbance same period (frequency) as source Longitudinal or Transverse Waves Characterized by
result from periodic disturbance same period (frequency) as source Longitudinal or Transverse Waves Characterized by amplitude (how far do the bits move from their equilibrium positions? Amplitude of MEDIUM)
More informationChapter 15. Mechanical Waves
Chapter 15 Mechanical Waves A wave is any disturbance from an equilibrium condition, which travels or propagates with time from one region of space to another. A harmonic wave is a periodic wave in which
More informationSOUND. Representative Sample Physics: Sound. 1. Periodic Motion of Particles PLANCESS CONCEPTS
Representative Sample Physics: Sound SOUND 1. Periodic Motion of Particles Before we move on to study the nature and transmission of sound, we need to understand the different types of vibratory or oscillatory
More informationSection 1 Simple Harmonic Motion. Chapter 11. Preview. Objectives Hooke s Law Sample Problem Simple Harmonic Motion The Simple Pendulum
Section 1 Simple Harmonic Motion Preview Objectives Hooke s Law Sample Problem Simple Harmonic Motion The Simple Pendulum Section 1 Simple Harmonic Motion Objectives Identify the conditions of simple harmonic
More informationXI PHYSICS [WAVES AND SOUND] CHAPTER NO. 8. M. Affan Khan LECTURER PHYSICS, AKHSS, K. https://promotephysics.wordpress.
XI PHYSICS M. Affan Khan LECTURER PHYSICS, AKHSS, K affan_414@live.com https://promotephysics.wordpress.com [WAVES AND SOUND] CHAPTER NO. 8 OSCILLATORY MOTION A motion in which an object moves to and fro
More informationWave Motions and Sound
EA Notes (Scen 101), Tillery Chapter 5 Wave Motions and Sound Introduction Microscopic molecular vibrations determine temperature (last Chapt.). Macroscopic vibrations of objects set up what we call Sound
More informationPage # Physics 103: Lecture 26 Sound. Lecture 26, Preflight 2. Lecture 26, Preflight 1. Producing a Sound Wave. Sound from a Tuning Fork
Physics 103: Lecture 6 Sound Producing a Sound Wave Sound waves are longitudinal waves traveling through a medium A tuning fork can be used as an example of producing a sound wave A tuning fork will produce
More informationOscillations - AP Physics B 1984
Oscillations - AP Physics B 1984 1. If the mass of a simple pendulum is doubled but its length remains constant, its period is multiplied by a factor of (A) 1 2 (B) (C) 1 1 2 (D) 2 (E) 2 A block oscillates
More informationMCAT Physics Problem Solving Drill 13: Sound
MCAT Physics Problem Solving Drill 13: Sound Question No. 1 of 10 Question 1. The wave lengths of audible sounds are 17 m to 0.017 m. Find the range of audible frequencies assuming velocity of sound in
More information-Electromagnetic. Waves - disturbance that propagates through space & time - usually with transfer of energy -Mechanical.
Waves Waves - disturbance that propagates through space & time - usually with transfer of energy -Mechanical requires a medium -Electromagnetic no medium required Mechanical waves: sound, water, seismic.
More informationCLASS 2 CLASS 2. Section 13.5
CLASS 2 CLASS 2 Section 13.5 Simple Pendulum The simple pendulum is another example of a system that exhibits simple harmonic motion The force is the component of the weight tangent to the path of motion
More informationSimple Harmonic Motion and Waves
Simple Harmonic Motion and Waves Simple Harmonic Motion (SHM) periodic motion that occurs whenever the restoring force is proportional to the displacement and in the opposite direction. Give some example
More informationWork. Work and Energy Examples. Energy. To move an object we must do work Work is calculated as the force applied to the object through a distance or:
Work To move an object we must do work Work is calculated as the force applied to the object through a distance or: W F( d) Work has the units Newton meters (N m) or Joules 1 Joule = 1 N m Energy Work
More information2016 AP Physics Unit 6 Oscillations and Waves.notebook December 09, 2016
AP Physics Unit Six Oscillations and Waves 1 2 A. Dynamics of SHM 1. Force a. since the block is accelerating, there must be a force acting on it b. Hooke's Law F = kx F = force k = spring constant x =
More informationFor more info:
Waves:- Wave motion:- Wave motion is the disturbance, set up in the medium, due to the repeated periodic motion of the particles of the medium and travels from the particle to particle, the particles themselves
More informationJEE NEET FOUNDATION. Particle of the medium vibrates in the direction of wave motion.
JEE NEET FOUNDATION WAVE MOTION It is a periodic disturbance through which energy and momentum is transferred from one point to another without the transfer of material medium. CHARACTERISTICS OF WAVE
More informationClass Average = 71. Counts Scores
30 Class Average = 71 25 20 Counts 15 10 5 0 0 20 10 30 40 50 60 70 80 90 100 Scores Chapter 12 Mechanical Waves and Sound To describe mechanical waves. To study superposition, standing waves, and interference.
More informationExam 3 Review. Chapter 10: Elasticity and Oscillations A stress will deform a body and that body can be set into periodic oscillations.
Exam 3 Review Chapter 10: Elasticity and Oscillations stress will deform a body and that body can be set into periodic oscillations. Elastic Deformations of Solids Elastic objects return to their original
More informationStanding waves [49 marks]
Standing waves [49 marks] 1. The graph shows the variation with time t of the velocity v of an object undergoing simple harmonic motion (SHM). At which velocity does the displacement from the mean position
More informationChapter 13, Vibrations and Waves. 1. A large spring requires a force of 150 N to compress it only m. What is the spring constant of the spring?
CHAPTER 13 1. A large spring requires a force of 150 N to compress it only 0.010 m. What is the spring constant of the spring? a. 125 000 N/m b. 15 000 N/m c. 15 N/m d. 1.5 N/m 2. A 0.20-kg object is attached
More informationNARAYANA JUNIOR COLLEGE
SR IIT ALL STREAMS ADV MODEL DPT-6 Date: 18/04/2016 One (or) More Than One Answer Type: PHYSICS 31. A particle is executing SHM between points -X m and X m, as shown in figure-i. The velocity V(t) of the
More informationjfpr% ekuo /kez iz.ksrk ln~xq# Jh j.knksm+nklth egkjkt
Phone : 93 93 7779, 9893 58881 Sount & Waves Page: 9 fo/u fopkjr Hkh# tu] ugha vkjehks dke] foifr ns[k NksM+s rqjar e/;e eu dj ';kea iq#"k flag ladyi dj] lgrs foifr vusd] ^cuk^ u NksM+s /;s; dks] j?kqcj
More informationOutline. Hook s law. Mass spring system Simple harmonic motion Travelling waves Waves in string Sound waves
Outline Hook s law. Mass spring system Simple harmonic motion Travelling waves Waves in string Sound waves Hooke s Law Force is directly proportional to the displacement of the object from the equilibrium
More informationChapter 15 Mechanical Waves
Chapter 15 Mechanical Waves 1 Types of Mechanical Waves This chapter and the next are about mechanical waves waves that travel within some material called a medium. Waves play an important role in how
More informationLet s Review What is Sound?
Mathematics of Sound Objectives: Understand the concept of sound quality and what it represents. Describe the conditions which produce standing waves in a stretched string. Be able to describe the formation
More informationQuestion 01. A. Incorrect! The speed of sound is not the same in all medium; it is dependent on the properties of the material.
High School Physics - Problem Drill 15: Sound 1. Which of these is not a true statement about sound waves? Question 01 (A) Sound waves are travel at different speeds in different mediums. (B) Sound waves
More information4. What is the speed (in cm s - 1 ) of the tip of the minute hand?
Topic 4 Waves PROBLEM SET Formative Assessment NAME: TEAM: THIS IS A PRACTICE ASSESSMENT. Show formulas, substitutions, answers, and units! Topic 4.1 Oscillations A mass is attached to a horizontal spring.
More informationChapter 16 Waves in One Dimension
Chapter 16 Waves in One Dimension Slide 16-1 Reading Quiz 16.05 f = c Slide 16-2 Reading Quiz 16.06 Slide 16-3 Reading Quiz 16.07 Heavier portion looks like a fixed end, pulse is inverted on reflection.
More informationHomework Book. Wave Properties. Huijia Physics Homework Book 1 Semester 2. Name: Homeroom: Physics Class:
Homework Book Wave Properties Huijia Physics Homework Book 1 Semester 2 Name: Homeroom: Physics Class: Week 1 Reflection, Refraction, wave equations 1. If the wavelength of an incident wave is 1.5cm and
More informationPhys101 Lectures 28, 29. Wave Motion
Phys101 Lectures 8, 9 Wave Motion Key points: Types of Waves: Transverse and Longitudinal Mathematical Representation of a Traveling Wave The Principle of Superposition Standing Waves; Resonance Ref: 11-7,8,9,10,11,16,1,13,16.
More informationTransverse wave - the disturbance is perpendicular to the propagation direction (e.g., wave on a string)
1 Part 5: Waves 5.1: Harmonic Waves Wave a disturbance in a medium that propagates Transverse wave - the disturbance is perpendicular to the propagation direction (e.g., wave on a string) Longitudinal
More informationPhysics 142 Mechanical Waves Page 1. Mechanical Waves
Physics 142 Mechanical Waves Page 1 Mechanical Waves This set of notes contains a review of wave motion in mechanics, emphasizing the mathematical formulation that will be used in our discussion of electromagnetic
More informationSchedule for the remainder of class
Schedule for the remainder of class 04/25 (today): Regular class - Sound and the Doppler Effect 04/27: Cover any remaining new material, then Problem Solving/Review (ALL chapters) 04/29: Problem Solving/Review
More informationGeneral Physics (PHY 2130)
General Physics (PHY 2130) Lecture XII Sound sound waves Doppler effect Standing waves Light Reflection and refraction Lightning Review Last lecture: 1. Vibration and waves Hooke s law Potential energy
More informationOld Exams - Questions Ch-16
Old Exams - Questions Ch-16 T081 : Q1. The displacement of a string carrying a traveling sinusoidal wave is given by: y( x, t) = y sin( kx ω t + ϕ). At time t = 0 the point at x = 0 m has a displacement
More informationAP physics B - Webreview ch 13 Waves
Name: Class: _ Date: _ AP physics B - Webreview ch 13 Waves Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A large spring requires a force of 150 N to
More informationGeneral Physics (PHY 2130)
General Physics (PHY 2130) Lecture XII Sound sound waves Doppler effect Standing waves Light Reflection and refraction http://www.physics.wayne.edu/~apetrov/phy2130/ Lightning Review Last lecture: 1. Vibration
More informationWaves Part 3A: Standing Waves
Waves Part 3A: Standing Waves Last modified: 24/01/2018 Contents Links Contents Superposition Standing Waves Definition Nodes Anti-Nodes Standing Waves Summary Standing Waves on a String Standing Waves
More information-Electromagnetic. Waves - disturbance that propagates through space & time - usually with transfer of energy -Mechanical.
Waves Waves - disturbance that propagates through space & time - usually with transfer of energy -Mechanical requires a medium -Electromagnetic no medium required Mechanical waves: sound, water, seismic.
More informationB.Sc. SEMESTER I PHYSICS COURSE : US01CPHY01 UNIT 3 : SOUND
B.Sc. SEMESTER I PHYSICS COURSE : US01CPHY01 UNIT 3 : SOUND INTRODUCTION TO TRANSVERSE AND LONGITUDINAL WAVES Longitudinal Waves : The longitudinal waves are such that when they pass through any medium,
More informationBaccalieu Collegiate. Physics Course Outline
Baccalieu Collegiate Physics 2204 Course Outline Course Content: Unit 1: Kinematics Motion is a common theme in our everyday lives: birds fly, babies crawl, and we, ourselves, seem to be in a constant
More informationUNIT 11 WAVES TWO MARKS AND THREE MARKS:
1 UNIT 11 WAVES TWO MARKS AND THREE MARKS: 01. What is meant by waves? The disturbance which carries energy and momentum from one point in space to another point in space without the transfer of the medium
More informationNicholas J. Giordano. Chapter 13 Sound
Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 13 Sound Sound Sounds waves are an important example of wave motion Sound is central to hearing, speech, music and many other daily activities
More informationHomework #4 Reminder Due Wed. 10/6
Homework #4 Reminder Chap. 6 Concept: 36 Problems 14, 18 Chap. 8 Concept: 8, 12, 30, 34 Problems 2, 10 Due Wed. 10/6 Chapter 8: Wave Motion A wave is a sort of motion But unlike motion of particles A propagating
More informationEinstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : ,
PW WAVES C C Wave A wave is a disturbance that travels or propagates and transports energy and momentum without the transport of matter. The ripples on a pond, the sound we hear, visible light, radio and
More informationSIMPLE HARMONIC MOTION AND WAVES
Simple Harmonic Motion (SHM) SIMPLE HARMONIC MOTION AND WAVES - Periodic motion any type of motion that repeats itself in a regular cycle. Ex: a pendulum swinging, a mass bobbing up and down on a spring.
More informationExam tomorrow on Chapter 15, 16, and 17 (Oscilla;ons and Waves 1 &2)
Exam tomorrow on Chapter 15, 16, and 17 (Oscilla;ons and Waves 1 &2) What to study: Quiz 6 Homework problems for Chapters 15 & 16 Material indicated in the following review slides Other Specific things:
More informationContent of the course 3NAB0 (see study guide)
Content of the course 3NAB0 (see study guide) 17 November diagnostic test! Week 1 : 14 November Week 2 : 21 November Introduction, units (Ch1), Circuits (Ch25,26) Heat (Ch17), Kinematics (Ch2 3) Week 3:
More informationChapter 8: Wave Motion. Homework #4 Reminder. But what moves? Wave properties. Waves can reflect. Waves can pass through each other
Homework #4 Reminder Chap. 6 Concept: 36 Problems 14, 18 Chap. 8 Concept: 8, 12, 30, 34 Problems 2, 10 Chapter 8: Wave Motion A wave is a sort of motion But unlike motion of particles A propagating disturbance
More information1. a) A flag waving in the breeze flaps once each s. What is the period and frequency of the flapping flag?
PHYSICS 20N UNIT 4 REVIEW NAME: Be sure to show explicit formulas and substitutions for all calculational questions, where appropriate. Round final answers correctly; give correct units. Be sure to show
More informationUniversity Physics Volume I Unit 2: Waves and Acoustics Chapter 16: Waves Conceptual Questions
Unit : Waves and Acoustics University Physics Volume I Unit : Waves and Acoustics Conceptual Questions. Give one example of a transverse wave and one example of a longitudinal wave, being careful to note
More informationTopic 4 &11 Review Waves & Oscillations
Name: Date: Topic 4 &11 Review Waves & Oscillations 1. A source produces water waves of frequency 10 Hz. The graph shows the variation with horizontal position of the vertical displacement of the surface
More informationPHYSICS 149: Lecture 24
PHYSICS 149: Lecture 24 Chapter 11: Waves 11.8 Reflection and Refraction 11.10 Standing Waves Chapter 12: Sound 12.1 Sound Waves 12.4 Standing Sound Waves Lecture 24 Purdue University, Physics 149 1 ILQ
More informationPhysics 11. Unit 7 (Part 2) The Physics of Sound
Physics 11 Unit 7 (Part 2) The Physics of Sound 1. Sound waves As introduced in the previous section, sound is one of the many types of waves we encounter in our daily lives. It possesses the properties
More informationChapter 16 Waves. Types of waves Mechanical waves. Electromagnetic waves. Matter waves
Chapter 16 Waves Types of waves Mechanical waves exist only within a material medium. e.g. water waves, sound waves, etc. Electromagnetic waves require no material medium to exist. e.g. light, radio, microwaves,
More informationPhysics 123 Unit #3 Review
Physics 123 Unit #3 Review I. Definitions and Facts longitudinal wave transverse wave traveling wave standing wave wave front wavelength wave number frequency angular frequency period crest trough node
More information42 TRAVELING WAVES (A) (B) (C) (D) (E) (F) (G)
42 TRAVELING WAVES 1. Wave progagation Source Disturbance Medium (D) Speed (E) Traveling waves (F) Mechanical waves (G) Electromagnetic waves (D) (E) (F) (G) 2. Transverse Waves have the classic sinusoidal
More informationVELOCITY OF SOUND. Apparatus Required: 1. Resonance tube apparatus
VELOCITY OF SOUND Aim : To determine the velocity of sound in air, with the help of a resonance column and find the velocity of sound in air at 0 C, as well. Apparatus Required: 1. Resonance tube apparatus
More informationGeneral Physics I. Lecture 14: Sinusoidal Waves. Prof. WAN, Xin ( 万歆 )
General Physics I Lecture 14: Sinusoidal Waves Prof. WAN, Xin ( 万歆 ) xinwan@zju.edu.cn http://zimp.zju.edu.cn/~xinwan/ Motivation When analyzing a linear medium that is, one in which the restoring force
More informationLecture 17. Mechanical waves. Transverse waves. Sound waves. Standing Waves.
Lecture 17 Mechanical waves. Transverse waves. Sound waves. Standing Waves. What is a wave? A wave is a traveling disturbance that transports energy but not matter. Examples: Sound waves (air moves back
More information1. Types of Waves. There are three main types of waves:
Chapter 16 WAVES I 1. Types of Waves There are three main types of waves: https://youtu.be/kvc7obkzq9u?t=3m49s 1. Mechanical waves: These are the most familiar waves. Examples include water waves, sound
More informationOscillations and Waves
Oscillations and Waves Periodic Motion Simple Harmonic Motion Connections between Uniform Circular Motion and Simple Harmonic Motion The Period of a Mass on a Spring Energy Conservation in Oscillatory
More informationChapter 16 Mechanical Waves
Chapter 6 Mechanical Waves A wave is a disturbance that travels, or propagates, without the transport of matter. Examples: sound/ultrasonic wave, EM waves, and earthquake wave. Mechanical waves, such as
More information1. The waves produced by a motorboat sailing in water are: (A) Transverse (B) Longitudinal (C) Longitudinal and transverse(d) Stationary
J-Physics XRCIS 01 CHCK YOUR GRASP MCQs wi th one correct answer 1. The waves produced by a motorboat sailing in water are: (A) Transverse (B) Longitudinal (C) Longitudinal and transverse(d) Stationary.
More information(Total 1 mark) IB Questionbank Physics 1
1. A transverse wave travels from left to right. The diagram below shows how, at a particular instant of time, the displacement of particles in the medium varies with position. Which arrow represents the
More informationPHYSICS PAPER 1. (THEORY) (Three hours)
PHYSICS PAPER 1 (THEY) (Three hours) (Candidates are allowed additional 15 minutes for only reading the paper. They must NOT start writing during this time.) All questions are compulsory. Question number
More informationdue to striking, rubbing, Any vibration of matter spinning, plucking, etc. Find frequency first, then calculate period.
Equilibrium Position Disturbance Period (T in sec) # sec T = # cycles Frequency (f in Hz) f = # cycles # sec Amplitude (A in cm, m or degrees [θ]) Other Harmonic Motion Basics Basic Definitions Pendulums
More informationf 1/ T T 1/ f Formulas Fs kx m T s 2 k l T p 2 g v f
f 1/T Formulas T 1/ f Fs kx Ts 2 m k Tp 2 l g v f What do the following all have in common? Swing, pendulum, vibrating string They all exhibit forms of periodic motion. Periodic Motion: When a vibration
More informationLecture 14 1/38 Phys 220. Final Exam. Wednesday, August 6 th 10:30 am 12:30 pm Phys multiple choice problems (15 points each 300 total)
Lecture 14 1/38 Phys 220 Final Exam Wednesday, August 6 th 10:30 am 12:30 pm Phys 114 20 multiple choice problems (15 points each 300 total) 75% will be from Chapters 10-16 25% from Chapters 1-9 Students
More information(d) None 11. The unit for moment of inertia is (a) kg m 2 (b) kg m (c) kg m 2 (d) kg m The unit for pressure is
1. A man is standing between two parallel cliffs and fires a gun. If he hears first and second echos after 1.5s and 3.5s respectively, the distance between the cliffs is (velocity of sound in air = 340ms
More informationThis PDF is the Sample PDF taken from our Comprehensive Study Material for NEET & AIIMS
This PDF is the Sample PDF taken from our Comprehensive Study Material for NEET & AMS To purchase the books, go through the link belowhttp://www.etoosindia.com/smartmall/booklist.do ETOOS Comprehensive
More informationRaymond A. Serway Chris Vuille. Chapter Thirteen. Vibrations and Waves
Raymond A. Serway Chris Vuille Chapter Thirteen Vibrations and Waves Periodic Motion and Waves Periodic motion is one of the most important kinds of physical behavior Will include a closer look at Hooke
More informationis a What you Hear The Pressure Wave sets the Ear Drum into Vibration.
is a What you Hear The ear converts sound energy to mechanical energy to a nerve impulse which is transmitted to the brain. The Pressure Wave sets the Ear Drum into Vibration. electroencephalogram v S
More informationChapter 16 Waves in One Dimension
Lecture Outline Chapter 16 Waves in One Dimension Slide 16-1 Chapter 16: Waves in One Dimension Chapter Goal: To study the kinematic and dynamics of wave motion, i.e., the transport of energy through a
More informationPeriodic Functions and Waves
Ron Ferril SBCC Physics 101 Chapter 06 20167ul06A Page 1 of 14 Chapter 06 Waves Periodic Functions and Waves Consider a function f of one variable x. That is, we consider a rule by which a number f(x)
More informationSuperposition and Standing Waves
Physics 1051 Lecture 9 Superposition and Standing Waves Lecture 09 - Contents 14.5 Standing Waves in Air Columns 14.6 Beats: Interference in Time 14.7 Non-sinusoidal Waves Trivia Questions 1 How many wavelengths
More informationPhysics Grade 12 Oscillatory Motion
Oscillatory Motion At the end of this chapter, the student should be able to: 1.1. Explain Periodic Motion. 1.2. Describe Simple Harmonic motion (SHM). 1.3. Formulate Simple Harmonic Motion Equations.
More informationG r a d e 1 1 P h y s i c s ( 3 0 s ) Final Practice exam
G r a d e 1 1 P h y s i c s ( 3 0 s ) Final Practice exam G r a d e 1 1 P h y s i c s ( 3 0 s ) Final Practice Exam Instructions The final exam will be weighted as follows: Modules 1 6 15 20% Modules
More informationPrashant Patil ( ) PRASHANT PATIL PHYSICS CLASSES NEET/JEE(Main) Date : 19/07/2017 TEST ID: 11 Time : 00:45:00 PHYSICS
Prashant Patil (99709774) PRASHANT PATIL PHYSICS CLASSES NEET/JEE(Main) Date : 9/07/07 TEST ID: Time : 00:45:00 PHYSICS Marks : 80 5. STATIONARY WAVES Single Correct Answer Type. Stationary waes are set
More informationChapter 11 Vibrations and Waves
Chapter 11 Vibrations and Waves 11-1 Simple Harmonic Motion If an object vibrates or oscillates back and forth over the same path, each cycle taking the same amount of time, the motion is called periodic.
More informationChapter 20: Mechanical Waves
Chapter 20: Mechanical Waves Section 20.1: Observations: Pulses and Wave Motion Oscillation Plus Propagation Oscillation (or vibration): Periodic motion (back-and-forth, upand-down) The motion repeats
More information