SUMMARY. ) f s Shock wave Sonic boom UNIT. Waves transmit energy. Sound is a longitudinal mechanical wave. KEY CONCEPTS CHAPTER SUMMARY

Size: px
Start display at page:

Download "SUMMARY. ) f s Shock wave Sonic boom UNIT. Waves transmit energy. Sound is a longitudinal mechanical wave. KEY CONCEPTS CHAPTER SUMMARY"

Transcription

1 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 reflection Standing waves Resonance Parts of a wave include the crest, trough, amplitude, and wavelength. (9.1) Transverse waves and longitudinal waves are two different types of mechanical waves. (9.1) A longitudinal wave consists of rarefactions and compressions. (9.1) A cycle is a complete oscillation. (9.2) The period of a wave is the time taken for one complete oscillation. (9.2) The frequency of a wave is the number of oscillations per second. (9.2) The universal wave equation relates speed, frequency, and wavelength of a wave. (9.2) Waves undergo reflection when they meet a rigid barrier. (9.2) The principle of superposition explains constructive and destructive interference of waves. (9.3) Standing waves consist of nodes and antinodes. (9.3) Resonance and resonant frequency have both positive and negative effects on humans and the environment. (9.3) 10 Sound is a longitudinal mechanical wave. Speed of sound v sound T Range of hearing Sound intensity Sound intensity level Maximum sound intensity level Standing waves in musical instruments Fundamental frequency Overtones Harmonics Beats f beat f 1 f 2 Doppler effect v f d ( w v w v s ) f s Shock wave Sonic boom Sound is an example of a longitudinal mechanical wave. (10.1) A sound wave is a travelling disturbance of compressions and rarefactions. (10.1) The wavelength of a sound wave is the distance between successive compressions or rarefactions. (10.1) Humans can only hear sounds within a certain range. (10.1) The speed of sound depends on the spacing between particles in a medium and the stiffness of the medium. (10.1) Sound intensity is the energy per unit area that passes a point each second. (10.1) Sound intensity level is measured in decibels (db). (10.1) In Ontario, the maximum continuous sound intensity level that workers can be exposed to for 8 h is 85 db. (10.1) Standing waves in a vibrating air column can produce musical notes. (10.2) When resonance is produced in an air column closed at one end, there is an antinode at the open end. (10.2) The fundamental frequency is the lowest frequency produced by a particular instrument. (10.2) Overtones are frequencies above the fundamental frequency that may exist simultaneously with the fundamental frequency. (10.2) Overtones are called harmonics when they are whole multiples of the fundamental frequency. (10.2) Beating is the periodic pattern of constructive and destructive interference that produces a periodic change in the intensity of two combining waves. (10.2) The Doppler effect describes the increase in pitch and frequency of sounds moving towards you and the decrease in pitch and frequency of sounds moving away from you. (10.3) A shock wave is formed when an object travels through a medium at a speed equal to or greater than the speed of sound in the medium. (10.3) A sonic boom is the sound heard when a shock wave is produced. (10.3) Aircraft that travel at supersonic speeds create shock waves. (10.3) 358 Unit D Summary

2 UNIT D REVIEW ACHIEVEMENT CHART CATEGORIES k Knowledge and understanding t Thinking and investigation c Communication a Application Key Terms Review 1. Using your own words, define these terms, concepts, principles, or laws. c crests troughs amplitude wavelength transverse wave longitudinal wave rarefactions compressions cycle period frequency universal wave equation constructive interference destructive interference nodes antinodes standing wave resonance beat Doppler effect Key Concepts Review CHAPTER 9 2. How are the units of frequency and period similar? How are they different? k 3. The SI unit for frequency is Hz. What is one other accepted unit? k 4. The diagram below shows waves in two springs. For each of the springs, how many wavelengths are shown? k the amplitude the direction of the wave k 6. Points of zero displacement on a transverse wave have the greatest kinetic energy. Which points on a longitudinal wave have the greatest kinetic energy? k 7. What aspect of a pulse determines the amount of energy it transfers? k 8. What determines the speed at which a wave travels through a spring? k 9. You notice that a dance floor vibrates noticeably with certain dance steps but not at all with others. What important principle from physics could explain the different effect? k 10. After a fresh, heavy snowfall, the outside world seems to be unusually quiet and still. Explain why using ideas that you have learned about in this unit. k 11. What causes a standing wave in a spring? k 12. Draw a transverse wave that consists of two wavelengths. On your diagram, label the equilibrium position for the medium, a crest, a trough, the amplitude, a wavelength, and the direction of the wave velocity. Along the wavelength that you identified above, draw several vector arrows to indicate the direction of the motion of the medium. k 13. What is the relationship between frequency, wavelength, and wave velocity? k 14. Use the principle of superposition and the following two wave pulses to predict what the combined wave pulse will look like when points A and B overlap. k A Question 4 5. Sound waves travelling through air are reflected from the wall of a building. Describe how the reflection affects the speed the wavelength B Question 14 Unit D Review 359

3 15. Predict what will happen when the wave pulse shown below reaches the heavy rope and travels along it. Will the amplitude or phase change? Sketch your answer. k Question Under what conditions is the amplitude of a reflected wave not inverted? k 17. What is the period of a wave that vibrates with a frequency of 40 Hz? k CHAPTER Why does moving your finger along the string of a violin alter the note that it produces? k 19. In a 100-m race, runners are spread out over 15 m at the start line. If the starter stands to one side of the start line, in line with the runners, how much of a head start does the runner nearest the starter have compared to the runner farthest from the starter? The speed of sound is 344 m/s. k 20. What property of the sound produced by a tuning fork is affected by striking the tuning fork with different forces? What does that tell you about the relationship between the properties of the sound and the sound wave created by striking the tuning fork? k 21. In terms of the length of an open pipe, what is the longest wavelength for which resonance can occur? k 22. You are walking north along a street when a police car with its siren on comes down a side street (travelling east) and turns northward on the street in front of you. Describe what you would hear, in terms of frequency of the sound of its siren, before and after the police car turns. k 23. Why does the frequency of a sound source that is moving toward you seem to be higher than it would be if the source were at rest? k 24. Even though waves of the same frequency can interfere with each other, they will not produce beats. Why must two waves have different frequencies in order to produce beats? k 25. You have two audio frequency generators, one set at 1050 Hz and the other set at 1047 Hz. When both generators are on, how many beats would you hear in 15 s? k 26. A seal sees a shark 53.0 m away and lets out a squeal. If the speed of sound through sea water is 1533 m/s, how long will it take for the echo of the squeal to return to the seal? k 27. If the distance to the reflecting object is the same, would you hear an echo return faster on a cold day or on a hot day? Explain your answer. k 28. The speed of sound in air is 335 m/s. What is the air temperature? k 29. In what frequency range is a sound of 0.5 Hz? k 30. Your MP3 player headphones at maximum volume have a sound intensity of 10 2 W/m 2. (a) What is their sound intensity level in decibels? k (b) Use the three-decibel exchange rate to determine how long you can safely listen to an MP3 player at the sound intensity level in (a). k Connect Your Understanding 31. When a wave slows down, what property of the wave is not affected? What effect does slowing down have on other properties of the wave? Explain. k 32. Explain how a wave can transmit energy through a medium without actually transmitting any matter. k 33. If you hold a 1.00-m-long aluminium rod at its centre, it will ring with a very pure tone that has a frequency of about 2900 Hz. Estimate the speed of sound in aluminium and explain how you used the information given to do so. k 34. A string is stretched between two fixed ends 1.20 m apart. When the string vibrates with a frequency of 60 Hz, you observe a standing wave in which the nodes are separated by 0.40 m. (a) Sketch the standing wave in your notebook. k (b) From the information given, determine the speed of the wave in the string. k 35. (a) What factors affect the frequency of a vibrating string? k (b) How does each factor in (a) affect the frequency of the string? k 360 Unit D Review

4 36. What is the length, in wavelengths, of a string that is vibrating in its fundamental mode? k 37. The vibrating string playing an A note (440 Hz) is 33.0 cm long. How long should the segment of the same string be to produce a C note (523 Hz)? k 38. When a piano is played, describe the path of sound energy from the string to the air. k 39. What is the function of the tuning pegs on a violin? a 40. (a) How is it possible to play different notes with the same string on a guitar? a (b) Why is it more difficult to do the same thing with a violin? a 41. Write a brief procedure for a controlled experiment to determine how string diameter affects frequency. t 42. Compare and contrast playing a violin with playing a piano using a Venn diagram. t 43. If you double the distance from a sound source, its sound intensity in W/m 2 will decrease by a factor of four (assuming that no sound is absorbed over this distance). What will be the change in sound intensity level, in db? k 44. If you hold a 1.00-m-long aluminium rod at its centre, it will ring with a very pure tone. If you slide your fingers only a few centimetres to either side of the centre, the rod does not vibrate as much. Explain why this happens. t 45. A light wave is transmitted through space at m/s. If visible light has wavelengths ranging from about m to m long, what range of frequencies are we able to see? a 46. Radio waves travel at the speed of light waves ( m/s). If your radio is tuned to a station broadcasting at 1250 khz, what is the length of the waves arriving at the radio antenna? a 47. A pendulum oscillates with a period of s. Attached to the pendulum is a pen that marks a strip of paper on the table below the pendulum as it oscillates. When the strip of paper is pulled sideways at a steady speed, the pen draws a sine curve on the paper. What will be the wavelength of the sine curve if the speed of the paper is m/s? k 48. A submarine sends out a sonar wave that has a frequency of 545 Hz. If the wavelength of the sound is 2.60 m, how long does it take for the echo to return when the sound is reflected from a submarine that is 5.50 km away? k 49. A wire is stretched between two points that are 3.00 m apart. A generator oscillating at 480 Hz sets up a standing wave in the wire that consists of 24 antinodes. What is the velocity at which waves move in this wire? k 50. A spring is stretched to a length of 5.40 m. At that length, the speed of waves in the spring is 3.00 m/s. (a) If a standing wave with a frequency of 2.50 Hz were generated in this spring, how many nodes and antinodes would there be along the spring? k (b) What is the next lower frequency for which a standing wave pattern could exist in this spring? k 51. (a) In a typical adult ear, the length of the ear canal is about 26 mm. Explain why this length implies that the ear is most sensitive to sounds with frequencies around 3400 Hz. t (b) Would you expect a small child s ear to be more sensitive to higher frequencies or lower frequencies than 3400 Hz, the frequency for which adult ears are most sensitive to? Why is there a difference? t 52. The second string on a violin is tuned to the note D with a frequency of 293 Hz. This frequency is the fundamental frequency for the open string, which is 33.0 cm long. (a) What is the speed of the waves in the string? t (b) If you press on the string with your finger so that the oscillating portion of the string is 2_ 3 the length of the open string, what is the frequency of the note that is created? t 53. An audio frequency generator set at 154 Hz is used to generate a standing wave in a closedpipe resonator, where the speed of sound is 340 m/s. (a) What is the shortest air column for which resonance is heard? t (b) What is the next longer column length for which resonance is heard? t Unit D Review 361

5 54. A submarine s sonar emits a sound with a frequency of 875 Hz. The speed of sound in seawater is about 1500 m/s. If you measure the frequency of the sound to be 870 Hz, what is the velocity of the submarine? t 55. A police car is travelling at a speed of 144 km/h. It has a siren with a frequency of 1120 Hz. Assume that the speed of sound in air is 320 m/s. (a) If the car is moving toward you, what frequency will you hear for the siren? t (b) If the car had been moving away from you at the same speed, what frequency would you have heard? t 56. If a sound source is at rest, the frequency you hear (f d ) and the actual frequency (f s ) are equal. Their ratio equals one ( f d_ f s 1). If the sound source moves toward you at an ever-increasing speed, this frequency ratio also increases. (a) Plot a graph for the ratio of the frequencies versus the speed of the sound source as the speed of the source increases from zero to Mach 1. a (b) What is the value of the ratio when the speed of the source is Mach 1? t 57. You can create a very regular transverse wave by turning on your garden hose and then jiggling it up and down. (a) How could you use this technique to estimate the speed with which the water is flowing in the hose? a (b) If there is a sudden surge in pressure and the water speed increases by 50%, how would the distance between wave crests change? a (c) Suppose you jiggle the hose up and down two times a second and notice that you get four complete waves in the span of 6 m. Estimate the speed of the water. a 58. A string is stretched between two fixed points that are separated by 2.0 m. If the string is plucked, it will vibrate as a standing wave with a node at each end at a frequency of 100 Hz. (a) Determine the wavelength of the standing wave. t (b) Find the speed of the wave in the string. t 59. If you increase the tension in the string in question 58, the wave speed will increase. Which value will change when the speed increases: the wavelength or the frequency of the standing wave? Explain. t 60. Answer the following questions about wave interference. (a) What happens when the trough of a wave meets the crest of another wave? k (b) What happens when two wave crests meet? k (c) Two vibrating sources, A and B, create waves of wavelength 12 cm. You are situated 24 cm from source A and 18 cm from source B and are receiving waves from both sources. Describe the resulting wave disturbance that you will detect from both sources. k Skills Practice 61. Use a graphing calculator or another suitable means to plot a graph of period against frequency. What type of relationship is this? k 62. Explain to someone who has not studied physics the differences in the ways objects and waves transport energy between points in Earth. k Revisit the Big Ideas and Fundamental Concepts 63. A tsunami is a potentially deadly water wave created by earthquakes and capable of travelling at speeds of over 1000 km/h. To provide ample warning to people, governments around the world have invested in tsunami warning systems. Suppose a massive earthquake occurs on the west coast of British Columbia, 1800 km from Vancouver. If the warning system issues an alert within five minutes of the event, how much warning time will Vancouver receive? a Science, Technology, Society, and the Environment 64. You can estimate your distance from a lightning storm by watching for a lightning flash and then counting in one-second intervals using the general rule that you are 1 km away for every 3 s you count. (a) Explain why this rule works. a (b) Estimate the distance from a lightning storm if it takes 8 s for the sound of the thunder to reach you after you see a flash of lightning. a 362 Unit D Review

6 65. The photo on the right shows a wave front travelling in front of a barge moving through a canal. What causes this phenomenon? (Hint: How would knowing the speed of the boat through water compared to the speed of the surface waves help you to answer this question?) t Reflection 66. Identify a concept or issue that you studied in this unit and that you would like to learn more about. c 67. Learning often requires that we change the way we think about things. Which concept in this unit required the greatest change in your thinking about it? Explain how your thinking changed. c Question Which of the concepts in this unit was most helpful in explaining to you how objects interact? c D11 Unit Task PHYSICS SOURCE Does Acoustic Range of Hearing Change with Age? Question What is your acoustic range and how does it change as you grow older? Task Overview In this task, you will use a sound frequency generator to measure the range over which you are able to hear sound. You will measure the lowest and highest frequencies that you can hear. You will then measure the lowest and highest frequencies that some of your classmates can hear, and compare your data. Next, you will measure the frequency range of people in their thirties and older. The greater the number of people from different age groups you can measure, the better. The second part of your task will be to see if acoustic range changes as you age. You will need to keep accurate and well-organized records and devise a way in which to display the results of your frequency range measurements. Your teacher will provide you with a complete task description. Figure Unit task setup Unit D Review 363

1) The time for one cycle of a periodic process is called the A) period. B) frequency. C) wavelength. D) amplitude.

1) 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 information

CHAPTER 12 SOUND ass/sound/soundtoc. html. Characteristics of Sound

CHAPTER 12 SOUND  ass/sound/soundtoc. html. Characteristics of Sound CHAPTER 12 SOUND http://www.physicsclassroom.com/cl ass/sound/soundtoc. html Characteristics of Sound Intensity of Sound: Decibels The Ear and Its Response; Loudness Sources of Sound: Vibrating Strings

More information

3) For vibrational motion, the maximum displacement from the equilibrium point is called the

3) 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 information

A mechanical wave is a disturbance which propagates through a medium with little or no net displacement of the particles of the medium.

A 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 information

Waves & Interference

Waves & 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

Copyright 2009 Pearson Education, Inc.

Copyright 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 information

Chapter PREPTEST: SHM & WAVE PROPERTIES

Chapter 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 information

Preview. Sound Section 1. Section 1 Sound Waves. Section 2 Sound Intensity and Resonance. Section 3 Harmonics

Preview. Sound Section 1. Section 1 Sound Waves. Section 2 Sound Intensity and Resonance. Section 3 Harmonics Sound Section 1 Preview Section 1 Sound Waves Section 2 Sound Intensity and Resonance Section 3 Harmonics Sound Section 1 TEKS The student is expected to: 7A examine and describe oscillatory motion and

More information

Ch 26: Sound Review 2 Short Answers 1. What is the source of all sound?

Ch 26: Sound Review 2 Short Answers 1. What is the source of all sound? Ch 26: Sound Review 2 Short Answers 1. What is the source of all sound? 2. How does a sound wave travel through air? 3. What media transmit sound? 4. What determines the speed of sound in a medium? 5.

More information

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?

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? 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 information

Copyright 2010 Pearson Education, Inc.

Copyright 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 information

Final 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. 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 information

Chapter 14, Sound. 1. When a sine wave is used to represent a sound wave, the crest corresponds to:

Chapter 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 information

= 2n! 1 " L n. = 2n! 1 # v. = 2n! 1 " v % v = m/s + ( m/s/ C)T. f 1. = 142 Hz

= 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 information

Chapter 12. Preview. Objectives The Production of Sound Waves Frequency of Sound Waves The Doppler Effect. Section 1 Sound Waves

Chapter 12. Preview. Objectives The Production of Sound Waves Frequency of Sound Waves The Doppler Effect. Section 1 Sound Waves Section 1 Sound Waves Preview Objectives The Production of Sound Waves Frequency of Sound Waves The Doppler Effect Section 1 Sound Waves Objectives Explain how sound waves are produced. Relate frequency

More information

1. Transverse Waves: the particles in the medium move perpendicular to the direction of the wave motion

1. Transverse Waves: the particles in the medium move perpendicular to the direction of the wave motion Mechanical Waves Represents the periodic motion of matter e.g. water, sound Energy can be transferred from one point to another by waves Waves are cyclical in nature and display simple harmonic motion

More information

Date Period Name. Write the term that corresponds to the description. Use each term once. beat

Date 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 information

AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound

AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound AP Physics B (Princeton 15 & Giancoli 11 & 12) Waves and Sound Preview What are the two categories of waves with regard to mode of travel? Mechanical Electromagnetic Which type of wave requires a medium?

More information

Sound & Waves Review. Physics - Mr. Jones

Sound & Waves Review. Physics - Mr. Jones Sound & Waves Review Physics - Mr. Jones Waves Types Transverse, longitudinal (compression) Characteristics Frequency, period, wavelength, amplitude, crest, trough v = f! Review: What is sound? Sound is

More information

Chapter 16. Waves and Sound

Chapter 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 information

1. At which position(s) will the child hear the same frequency as that heard by a stationary observer standing next to the whistle?

1. 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 information

Chapter 9: Wave Interactions

Chapter 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 information

ABC Math Student Copy

ABC 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 information

Interference & Superposition. Creating Complex Wave Forms

Interference & 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 information

Lecture PowerPoints. Chapter 12 Physics: Principles with Applications, 7 th edition Giancoli

Lecture PowerPoints. Chapter 12 Physics: Principles with Applications, 7 th edition Giancoli Lecture PowerPoints Chapter 12 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching

More information

Waves transfer energy NOT matter Two categories of waves Mechanical Waves require a medium (matter) to transfer wave energy Electromagnetic waves no

Waves 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 information

Properties and Applications

Properties 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 information

Physics I Notes: Chapter 13 Sound

Physics 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 information

MDHS Science Department SPH 3U - Student Goal Tracking Sheet

MDHS Science Department SPH 3U - Student Goal Tracking Sheet Did I watch the assigned video for this topic? Did I complete the homework for this topic? Did I complete the Journal for this topic? How successful was I with this Journal? (1 (need review) to 4 (mastered))

More information

Vibrations and Waves. Properties of Vibrations

Vibrations and Waves. Properties of Vibrations Vibrations and Waves For a vibration to occur an object must repeat a movement during a time interval. A wave is a disturbance that extends from one place to another through space. Light and sound are

More information

(3) A traveling wave transfers, but it does not transfer.

(3) A traveling wave transfers, but it does not transfer. AP PHYSICS TEST 9 Waves and Sound (1) Give a good physics definition of a wave. (2) Any wave has as its source. (3) A traveling wave transfers, but it does not transfer. (4) What is a mechanical wave?

More information

Lecture PowerPoints. Chapter 12 Physics: Principles with Applications, 6 th edition Giancoli

Lecture PowerPoints. Chapter 12 Physics: Principles with Applications, 6 th edition Giancoli Lecture PowerPoints Chapter 12 Physics: Principles with Applications, 6 th edition Giancoli 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for

More information

A sound wave is introduced into a medium by the vibration of an object. Sound is a longitudinal, mechanical

A sound wave is introduced into a medium by the vibration of an object. Sound is a longitudinal, mechanical Sound Waves Dancing Liquids A sound wave is introduced into a medium by the vibration of an object. Sound is a longitudinal, mechanical wave. For example, a guitar string forces surrounding air molecules

More information

PHYS102 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. 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 information

Chapter 16 Sound. Copyright 2009 Pearson Education, Inc.

Chapter 16 Sound. Copyright 2009 Pearson Education, Inc. Chapter 16 Sound 16-6 Interference of Sound Waves; Beats Sound waves interfere in the same way that other waves do in space. 16-6 Interference of Sound Waves; Beats Example 16-12: Loudspeakers interference.

More information

Pre Test 1. Name. a Hz b Hz c Hz d Hz e Hz. 1. d

Pre 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 information

Name: Date: Period: Physics: Study guide concepts for waves and sound

Name: Date: Period: Physics: Study guide concepts for waves and sound Name: Date: Period: Physics: Study guide concepts for waves and sound Waves Sound What is a wave? Identify parts of a wave (amplitude, frequency, period, wavelength) Constructive and destructive interference

More information

AP PHYSICS WAVE BEHAVIOR

AP 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 information

SECTION A Waves and Sound

SECTION 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 information

Demonstrate understanding of wave systems. Demonstrate understanding of wave systems. Achievement Achievement with Merit Achievement with Excellence

Demonstrate 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 information

Waves and Sound Practice Test 43 points total Free- response part: [27 points]

Waves 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 information

Today: Finish Chapter 15 (Temp, Heat, Expansion) Chapter 19 (Vibrations and Waves)

Today: Finish Chapter 15 (Temp, Heat, Expansion) Chapter 19 (Vibrations and Waves) Today: Finish Chapter 15 (Temp, Heat, Expansion) Chapter 19 (Vibrations and Waves) Vibrations Some Preliminaries Vibration = oscillation = anything that has a back-and-forth to it Eg. Draw a pen back and

More information

SECTION A Waves and Sound

SECTION 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 information

Physics B Waves and Sound Name: AP Review. Show your work:

Physics 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 information

Chapter 7. Waves and Sound

Chapter 7. Waves and Sound Chapter 7 Waves and Sound What is wave? A wave is a disturbance that propagates from one place to another. Or simply, it carries energy from place to place. The easiest type of wave to visualize is a transverse

More information

Review. Top view of ripples on a pond. The golden rule for waves. The golden rule for waves. L 23 Vibrations and Waves [3] ripples

Review. Top view of ripples on a pond. The golden rule for waves. The golden rule for waves. L 23 Vibrations and Waves [3] ripples 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 information

Waves and Sound. Review 10

Waves and Sound. Review 10 Review 10 Waves and Sound 1. A spring stretches by 25 cm when a 0.5 kg mass is suspended from its end. a. Determine the spring constant. b. How much elastic potential energy is stored in the spring when

More information

Chapter 05: Wave Motions and Sound

Chapter 05: Wave Motions and Sound Chapter 05: Wave Motions and Sound Section 5.1: Forces and Elastic Materials Elasticity It's not just the stretch, it's the snap back An elastic material will return to its original shape when stretched

More information

No Brain Too Small PHYSICS

No Brain Too Small PHYSICS WAVES: STANDING WAVES QUESTIONS No Brain Too Small PHYSICS PAN FLUTES (2016;1) Assume the speed of sound in air is 343 m s -1. A pan flute is a musical instrument made of a set of pipes that are closed

More information

SPH 3U0: Exam Review: Sound, Waves and Projectile Motion

SPH 3U0: Exam Review: Sound, Waves and Projectile Motion SPH 3U0: Exam Review: Sound, Waves and Projectile Motion True/False Indicate whether the sentence or statement is true or false. 1. A trough is a negative pulse which occurs in a longitudinal wave. 2.

More information

THE PRINCIPLE OF LINEAR SUPERPOSITION AND INTERFERENCE PHENOMENA

THE 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 information

Name: AP Homework Describing Periodic Waves. Date: Class Period:

Name: AP Homework Describing Periodic Waves. Date: Class Period: AP Homework 10.1 Describing Periodic Waves Name: Date: Class Period: (1) The speed of sound in air at 20 0 C is 344 m/s. (a) What is the wavelength of a wave with frequency 784 Hz, corresponding to the

More information

Wave Review Questions Updated

Wave Review Questions Updated Name: Date: 1. Which type of wave requires a material medium through which to travel? 5. Which characteristic is the same for every color of light in a vacuum? A. radio wave B. microwave C. light wave

More information

Chapter 17 Waves in Two and Three Dimensions

Chapter 17 Waves in Two and Three Dimensions Chapter 17 Waves in Two and Three Dimensions Slide 17-1 Chapter 17: Waves in Two and Three Dimensions Concepts Slide 17-2 Section 17.1: Wavefronts The figure shows cutaway views of a periodic surface wave

More information

Unit 6: Waves and Sound

Unit 6: Waves and Sound Unit 6: Waves and Sound Brent Royuk Phys-109 Concordia University Waves What is a wave? Examples Water, sound, slinky, ER Transverse vs. Longitudinal 2 Wave Properties The magic of waves. Great distances

More information

SOUND. Second, the energy is transferred from the source in the form of a longitudinal sound wave.

SOUND. Second, the energy is transferred from the source in the form of a longitudinal sound wave. SOUND - we can distinguish three aspects of any sound. First, there must be a source for a sound. As with any wave, the source of a sound wave is a vibrating object. Second, the energy is transferred from

More information

Waves & Energy Transfer. Introduction to Waves. Waves are all about Periodic Motion. Physics 11. Chapter 11 ( 11-1, 11-7, 11-8)

Waves & Energy Transfer. Introduction to Waves. Waves are all about Periodic Motion. Physics 11. Chapter 11 ( 11-1, 11-7, 11-8) Waves & Energy Transfer Physics 11 Introduction to Waves Chapter 11 ( 11-1, 11-7, 11-8) Waves are all about Periodic Motion. Periodic motion is motion that repeats after a certain period of time. This

More information

Unit 6: Waves and Sound

Unit 6: Waves and Sound Unit 6: Waves and Sound Waves What is a wave? Examples Water, sound, slinky, ER Transverse vs. Longitudinal Brent Royuk Phys-109 Concordia University 2 Wave Properties The magic of waves. Great distances

More information

Waves and Sound. AP Physics 1

Waves 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 information

PHYSICS. Sound & Music

PHYSICS. Sound & Music PHYSICS Sound & Music 20.1 The Origin of Sound The source of all sound waves is vibration. 20.1 The Origin of Sound The original vibration stimulates the vibration of something larger or more massive.

More information

Unit 10 Simple Harmonic Waves and Sound Holt Chapter 12 Student Outline

Unit 10 Simple Harmonic Waves and Sound Holt Chapter 12 Student Outline Unit 10 Simple Harmonic Waves and Sound Holt Chapter 12 Student Outline Variables introduced or used in chapter: Quantity Symbol Units Vector or Scalar? Spring Force Spring Constant Displacement Period

More information

9 Review REFLECTING ON CHAPTER 9 CHAPTER

9 Review REFLECTING ON CHAPTER 9 CHAPTER CHAPTER 9 Review REFLECTING ON CHAPTER 9 Regular reflection occurs when light reflects from a smooth surface, such as a mirror. Diffuse reflection occurs when light reflects from a rough surface. The Doppler

More information

Chapter 17. Linear Superposition and Interference

Chapter 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 information

Chapter 18. Superposition and Standing Waves

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 information

Ch17. 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 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 information

Intext Exercise 1 Question 1: How does the sound produced by a vibrating object in a medium reach your ear?

Intext Exercise 1 Question 1: How does the sound produced by a vibrating object in a medium reach your ear? Intext Exercise 1 How does the sound produced by a vibrating object in a medium reach your ear? When an vibrating object vibrates, it forces the neighbouring particles of the medium to vibrate. These vibrating

More information

CHAPTER 11 TEST REVIEW -- MARKSCHEME

CHAPTER 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 information

Waves-Wave Behaviors

Waves-Wave Behaviors 1. While playing, two children create a standing wave in a rope, as shown in the diagram below. A third child participates by jumping the rope. What is the wavelength of this standing wave? 1. 2.15 m 2.

More information

Name: 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: 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 information

Waves Homework. Assignment #1. Assignment #2

Waves Homework. Assignment #1. Assignment #2 Waves Homework Assignment #1 Textbook: Read Section 11-7 and 11-8 Online: Waves Lesson 1a, 1b, 1c http://www.physicsclassroom.com/class/waves * problems are for all students ** problems are for honors

More information

b) (4) How large is the effective spring constant associated with the oscillations, in N/m?

b) (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 information

Waves Q1. MockTime.com. (c) speed of propagation = 5 (d) period π/15 Ans: (c)

Waves 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 information

L 23 Vibrations and Waves [3]

L 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 information

Waves-Wave Behaviors

Waves-Wave Behaviors 1. While playing, two children create a standing wave in a rope, as shown in the diagram below. A third child participates by jumping the rope. What is the wavelength of this standing wave? 1. 2.15 m 2.

More information

GRADE 10A: Physics 4. UNIT 10AP.4 9 hours. Waves and sound. Resources. About this unit. Previous learning. Expectations

GRADE 10A: Physics 4. UNIT 10AP.4 9 hours. Waves and sound. Resources. About this unit. Previous learning. Expectations GRADE 10A: Physics 4 Waves and sound UNIT 10AP.4 9 hours About this unit This unit is the fourth of seven units on physics for Grade 10 advanced. The unit is designed to guide your planning and teaching

More information

WAVES. Chapter Fifteen MCQ I

WAVES. 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 information

From 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. 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 information

NCERT solution for Sound

NCERT solution for Sound NCERT solution for Sound 1 Question 1 How does the sound produce by a vibrating object in a medium reach your ear? When an object vibrates, it vibrates the neighboring particles of the medium. These vibrating

More information

Waves, Sound and Light. Grade 10 physics Robyn Basson

Waves, Sound and Light. Grade 10 physics Robyn Basson Waves, Sound and Light Grade 10 physics Robyn Basson Heartbeat Flick in hose pipe What is a pulse? A single disturbance that moves through a medium. Stone in water Other? moving Transverse pulse: A pulse

More information

From Last Time Wave Properties. Doppler Effect for a moving source. Question. Shock Waves and Sonic Booms. Breaking the sound barrier.

From Last Time Wave Properties. Doppler Effect for a moving source. Question. Shock Waves and Sonic Booms. Breaking the sound barrier. From Last Time Wave Properties Interference: waves can superimpose constructively or destructively Two speakers can be quieter than one! Doppler effect Frequency shift (up or down) from moving source.

More information

Concepts in Physics. Friday, November 26th 2009

Concepts 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 information

Answer:- School bell starts vibrating when heated which creates compression and rarefaction in air and sound is produced.

Answer:- School bell starts vibrating when heated which creates compression and rarefaction in air and sound is produced. Sound How does the sound produced by a vibrating object in a medium reach your ear? - Vibrations in an object create disturbance in the medium and consequently compressions and rarefactions. Because of

More information

Introduction. Physics 1CL WAVES AND SOUND FALL 2009

Introduction. 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 information

Waves ADD: Constructive Interference. Waves SUBTRACT: Destructive Interference. In Phase. Out of Phase

Waves 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 information

BVHS Physics: Waves Unit - Targets

BVHS Physics: Waves Unit - Targets BVHS Physics: Waves Unit - Targets Part A: General Wave Properties: Students should be able to 1) describe waves as traveling disturbances which transport energy without the bulk motion of matter. In transverse

More information

Test Review # 7. Physics R: Form TR7.17A. v C M = mach number M = C v = speed relative to the medium v sound C v sound = speed of sound in the medium

Test Review # 7. Physics R: Form TR7.17A. v C M = mach number M = C v = speed relative to the medium v sound C v sound = speed of sound in the medium Physics R: Form TR7.17A TEST 7 REVIEW Name Date Period Test Review # 7 Frequency and pitch. The higher the frequency of a sound wave is, the higher the pitch is. Humans can detect sounds with frequencies

More information

Lecture Presentation Chapter 16 Superposition and Standing Waves

Lecture Presentation Chapter 16 Superposition and Standing Waves Lecture Presentation Chapter 16 Superposition and Standing Waves Suggested Videos for Chapter 16 Prelecture Videos Constructive and Destructive Interference Standing Waves Physics of Your Vocal System

More information

the mechanical wave model can be used to explain phenomena related to reflection and refraction, including echoes and seismic phenomena.

the mechanical wave model can be used to explain phenomena related to reflection and refraction, including echoes and seismic phenomena. WAVES 5 Syllabus Checklist SCIENCE UNDERSTANDING WAVES waves are periodic oscillations that transfer energy from one point to another. mechanical waves transfer energy through a medium; longitudinal and

More information

Sound All sound begins with a vibrating object Ex. Vibrating tuning fork Vibrating prong sets molecules near it in motion

Sound All sound begins with a vibrating object Ex. Vibrating tuning fork Vibrating prong sets molecules near it in motion Sound All sound begins with a vibrating object Ex. Vibrating tuning fork Vibrating prong sets molecules near it in motion As prong swings right, air molecules in front of the movement are forced closer

More information

From Last Time Wave Properties. Description of a Wave. Question. Examples. More types of waves. Seismic waves

From Last Time Wave Properties. Description of a Wave. Question. Examples. More types of waves. Seismic waves From Last Time Wave Properties Amplitude is the maximum displacement of string above the equilibrium position Wavelength, λ, is the distance between two successive points that behave identically Period:

More information

Sound Quiz A. Which of the graphs represents the sound that has the lowest pitch? Question Prompt: 1 Total Points: 6

Sound Quiz A. Which of the graphs represents the sound that has the lowest pitch? Question Prompt: 1 Total Points: 6 Sound Quiz A Question Prompt: 1 During a laboratory investigation, Aaron used an oscilloscope to create graphs of sounds that he produced using tuning forks. Which of these four graphs represents the sound

More information

a. Determine the wavelength of the sound. b. Determine the speed of sound in the air inside the tube.

a. 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 information

In Phase. Out of Phase

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 information

Physics 20 Lesson 31 Resonance and Sound

Physics 20 Lesson 31 Resonance and Sound Physics 20 Lesson 31 Resonance and Sound I. Standing waves Refer to Pearson pages 416 to 424 for a discussion of standing waves, resonance and music. The amplitude and wavelength of interfering waves are

More information

Sound. DEF: A pressure variation that is transmitted through matter. Collisions are high pressure / compressions.

Sound. DEF: A pressure variation that is transmitted through matter. Collisions are high pressure / compressions. Sound Sound DEF: A pressure variation that is transmitted through matter. Link to pic of bell animation Collisions are high pressure / compressions. Pulls are low pressure / rarefacation. Have same properties

More information

Honors Physics-121B Sound and Musical Acoustics Introduction: Production of Sounds by Various Sources: Media That Transmit Sound:

Honors Physics-121B Sound and Musical Acoustics Introduction: Production of Sounds by Various Sources: Media That Transmit Sound: Honors Physics-121B Sound and Musical Acoustics Introduction: This unit deals with the properties of longitudinal (compressional) waves traveling through various media. As these waves travel through the

More information

ISSUED BY KENDRIYA VIDYALAYA - DOWNLOADED FROM CHAPTER 12 Sound

ISSUED BY KENDRIYA VIDYALAYA - DOWNLOADED FROM  CHAPTER 12 Sound 1. Production of Sound CHAPTER 12 Sound KEY CONCEPTS [ *rating as per the significance of concept] 1 Production of Sound **** 2 Propagation of Sound ***** 3 Reflection of Sound ***** 4 Echo **** 5 Uses

More information

Today s Topic: Beats & Standing Waves

Today 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 information

Worksheet 15.2 Musical Instruments

Worksheet 15.2 Musical Instruments Worksheet 15.2 Musical Instruments 1. You and your group stretch a spring 12 feet across the floor and you produce a standing wave that has a node at each end and one antinode in the center. Sketch this

More information

Waves & Sound. In this chapter you will be working with waves that are periodic or that repeat in a regular pattern.

Waves & Sound. In this chapter you will be working with waves that are periodic or that repeat in a regular pattern. Name: Waves & Sound Hr: Vocabulary Wave: A disturbance in a medium. In this chapter you will be working with waves that are periodic or that repeat in a regular pattern. Wave speed = (wavelength)(frequency)

More information