# Waves are created by disturbances which cause vibrations.

Save this PDF as:

Size: px
Start display at page:

## Transcription

1

2 Wave Motion Waves are created by disturbances which cause vibrations. Vibrations produce a back-and-forth type motion called an oscillation. wave simulation The number of vibrations (or waves) that occur in one second is defined as the frequency of the wave. The time it takes to complete one vibration (back-and-forth) is called a period.

3 Parts of a typical wave: Crest wavelength Trough Amplitude Crest highest point of the wave. Trough lowest point of the wave. Wavelength the distance between identical parts of a wave. Amplitude height of the wave measured from the horizontal reference point.

4 Wave Motion The frequency of the wave is the inverse of the wave period. Example: If 5 waves go by in 1 sec, the frequency is 5 Hz The period will be 1/5 th of a second. Frequency = waves per second frequency = 1 period Period = seconds per wave Period = 1 frequency

5 Practice: The rocking chair pictured here is oscillating at a rate of 1 wave per second. What is it s frequency? What is the period? Back and forth Back and forth Back and forth

6 Practice: The Sears Building in Chicago sways back and forth at a frequency of about 0.1 Hz. What is its period of vibration?

7 Practice: Stringed instruments produce sounds by vibrations of the strings. If a harp string makes one vibration in 2.3 x 10-3 seconds, what the frequency of the sound?

8 The speed of the wave is dependent on the material through which it travels. For example: A Sound wave in air travels around 340 m/s, but in water, the wave travels much faster about 1500 m/s, and in Iron 5130 m/s!!! However, all waves follow this relationship: Speed of the wave = frequency x wavelength =

9 For Practice: A bumblebee can flap its wings at a rate of 130 flaps per second. If the speed of sound in air is 340 m/s, calculate the length of the wave created.

10 For Practice: While on the beach, you observe that the wave crests reach the shore about every 2 seconds. If the distance between the waves is 5 meters, at what speed are the waves traveling? The waves are really slow today..

11

12 Types of Waves wave simulation Transverse waves the motion of the medium is at right angles to the direction of the wave. Direction of the wave motion The boat pictured here moves up and down while the wave moves forward. A8A5IMkW-Kg

13 Other examples of transverse waves include: People doing the wave in a large stadium.

14 TKF6nFzpHBU Strings on a musical instrument

15 Light and radio waves are transverse waves. And so are other electromagnetic waves.

16

17 Longitudinal waves The particles in the medium move back and forth in the same direction as the wave

18 Wavelength the distance between similar points on the wave Transverse wave Longitudinal wave

19 Sound waves are longitudinal waves.

20 Interference Interference is caused by two or more waves overlapping. Interference can increase the amplitude of a waves, decrease the amplitude of the waves, or cancel each other out. When the waves increase in amplitude, it is called constructive interference. When the waves decrease in amplitude, it is called destructive interference.

21 Constructive interference Destructive interference

22 Can you find the points where these waves cancel each other out?

23 Standing waves When two waves intersect each other, sometimes a standing wave is produced. Standing waves look like this: The higher the frequencies of the waves, the more nodes that will form.

24 Standing waves are produced in musical instruments, whistles, and when you blow in a pop bottle. Toot! Toot!

25

26 Sound Waves Sound waves are produced by a vibrating object, which forms a longitudinal wave in the surrounding medium. Ex. A guitar string, a bell, a tuning fork, your vocal chords The frequency of the vibration determines the pitch. The higher the frequency, the higher the pitch. The lower the frequency, the lower the pitch. Do Re Mi

27 The average human ear can sense frequencies that range from 20 Hz to Hz. Speech frequency range 100 Hz to 7500 Hz Music frequency range 50 Hz to Hz

28 Loudness (Intensity) Loudness is determined by the amplitude of the wave. The intensity of the sound can be measured by an oscilloscope. An oscilloscope can show the wave patterns for sound vibrations and provide an intensity level reading in units called decibels. Source of Sound Level (db) Jet engine 140 Pain threshold 120 Loud rock music 115 Average factory 90 Busy street traffic 70 Normal Speech 60 Close whisper 20 Normal breathing 10 Hearing threshold 0

29 Materials that transmit sound: A sound wave is a longitudinal wave. In order for the wave to continue, particles must be present. Sound will not travel in a vacuum. (There are no particles present.) Sound will travel through air by moving the air molecules back and forth. Sound travels through liquids and solids louder and faster than it travels in air.

30 Speed of sound in common materials: Material Speed (m/s) Air 0 C 331 Air 25 C 346 Helium 0 C 972 Hydrogen 0 C 1290 Water 1490 Alcohol 1140 Rubber 54 Copper 3560 Iron 5130

31 For practice: How far away is the storm cloud if the thunder is heard 3 seconds after the lightening is seen?

32 For practice: Why does your voice sound higher when you breath in the helium from a balloon? While Irish eyes are smiling.

33 Natural frequency & forced vibrations All materials have a natural frequency at which the molecules vibrate. This explains why forks and knives clatter, wind chimes chime, and rubber mallets thud. And drums drum.

34 Resonance When an object is forced into vibration, the intensity of the natural frequency wave becomes greater. These are examples of natural frequencies being forced into vibration: -Musical instruments -Opera singer s breaking glass trick -The TacomaNarrows Bridge disaster musical glasses UGftsRH7A2w Galloping Gerdie

35 Interference in Sound Waves Constructive interference waves add together and sound intensity increases. Ex. Surround sound Destructive Interference waves cancel each other out and sound intensity decreases. Ex. Dead spots in an auditorium

36 Beats A periodic variation in loudness that occurs when there is both constructive and destructive interference. This occurs when two frequencies are very close. Pattern: loud, soft, loud, soft, loud, soft The combs shown here illustrate this concept. Destructive (Dark areas) Constructive (Light areas)

37 The number of beats heard can be calculated by finding the difference in the two interfering frequencies. Ex. A 100 Hz sound wave and a 102 Hz sound wave will produce a 2 Hz beat frequency. This concept is helpful when tuning musical instruments. If beats are heard, then the instruments are not in tune and need to be adjusted. Most people can hear up to a frequency difference of 10 beats.

38 Practice: While tuning a violin a frequency of 3 beats is heard? After slightly tightening one of the strings, 2 beats are heard. What should the person tuning the violin do?

39 Practice: Two notes are sounding, one which is 440 Hz. If a beat frequency of 5 Hz is heard, what it the frequency of the other note?

40 The Doppler Effect The Doppler effect occurs when the source of a wave is in motion. Sound waves travel in all directions from the source. The waves are equally spaced according to the frequency of the sound.

41 If the source is moving, the pattern of the waves might look similar to this: Direction of motion Waves behind become spread out. A lower frequency is heard. Waves in front become compressed. A higher frequency is heard.

42 Calculating Doppler Effect Frequencies The Basic Equation: f = f s (v + v o )/(v v s ) where v o = velocity of observer v s = velocity of source v = speed of sound f s = frequency of the sound Helpful Hints: v o = + if moving toward the source v o = - if moving away from the source v s = + if moving toward the observer v s = - if moving away from the observer

43 Let s Review: Two types of waves Draw a tranverse wave Draw an arrow showing the direction of the movement of particles in the medium in that wave. Which direction do the particles move in a compressional wave? What typ of wave is a sound wave? Draw another wave above that wave with a higher frequency. Draw another wave below with a lower frequency. Draw a diagram showing Doppler Effect.

44 Reflection A wave strikes an object and bounces off it. All types of waves reflect Examples: Echo Light from a mirror Water waves hitting an object

45 SONAR Reflection of a Sound Wave Sound travels through Water at a speed of 1500 m/s.

46 A sonar pulse returns in 3 seconds from a sunken ship that is directly below. How deep is the sunken ship?

47 SONAR Sound Navigation and Ranging

48 Ultrasound

49 Read p Do # 4-7 on page 326

### v = λ f this is the Golden Rule for waves transverse & longitudinal waves Harmonic waves The golden rule for waves Example: wave on a string Review

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

### Chapter 21 Study Questions Name: Class:

Chapter 21 Study Questions Name: Class: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If a fire engine is traveling toward you, the Doppler

### Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect

Objectives: PS-7.1 Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect Illustrate ways that the energy of waves is transferred by interaction with

### Periodic Wave Phenomena

Name: Periodic Wave Phenomena 1. The diagram shows radar waves being emitted from a stationary police car and reflected by a moving car back to the police car. The difference in apparent frequency between

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

practice wave test.. Name Use the text to make use of any equations you might need (e.g., to determine the velocity of waves in a given material) MULTIPLE CHOICE. Choose the one alternative that best completes

### Waves-Wave Characteristics

1. What is the wavelength of a 256-hertz sound wave in air at STP? 1. 1.17 10 6 m 2. 1.29 m 3. 0.773 m 4. 8.53 10-7 m 2. The graph below represents the relationship between wavelength and frequency of

### Waves Sound and Light

Waves Sound and Light r2 c:\files\courses\1710\spr12\wavetrans.doc Ron Robertson The Nature of Waves Waves are a type of energy transmission that results from a periodic disturbance (vibration). They are

### Waves-Wave Characteristics

1. What is the wavelength of a 256-hertz sound wave in air at STP? 1. 1.17 10 6 m 2. 1.29 m 3. 0.773 m 4. 8.53 10-7 m 2. The graph below represents the relationship between wavelength and frequency of

### PHYSICS 202 Practice Exam Waves, Sound, Reflection and Refraction. Name. Constants and Conversion Factors

PHYSICS 202 Practice Exam Waves, Sound, Reflection and Refraction Name Constants and Conversion Factors Speed of sound in Air œ \$%!7Î= "'!*7/>/

### Ch 25 Chapter Review Q & A s

Ch 25 Chapter Review Q & A s a. a wiggle in time is called? b. a wiggle in space & time is called? a. vibration b. wave What is the period of a pendulum? The period is the time for 1 cycle (back & forth)

Chapter 20. Traveling Waves You may not realize it, but you are surrounded by waves. The waviness of a water wave is readily apparent, from the ripples on a pond to ocean waves large enough to surf. It

### AP1 Waves. (A) frequency (B) wavelength (C) speed (D) intensity. Answer: (A) and (D) frequency and intensity.

1. A fire truck is moving at a fairly high speed, with its siren emitting sound at a specific pitch. As the fire truck recedes from you which of the following characteristics of the sound wave from the

### General Physics (PHY 2130)

General Physics (PHY 2130) Lecture 28 Waves standing waves Sound definitions standing sound waves and instruments Doppler s effect http://www.physics.wayne.edu/~apetrov/phy2130/ Lightning Review Last lecture:

### PLEASE DO NOT WRITE ON THE TEST. PLACE ALL MULTIPLE CHOICE ANSWERS ON THE SCANTRON. (THANK YOU FOR SAVING A TREE.)

PLEASE DO NOT WRITE ON THE TEST. PLACE ALL MULTIPLE CHOICE ANSWERS ON THE SCANTRON. (THANK YOU FOR SAVING A TREE.) Sound Waves Test -- each multiple choice question is worth 3 points. 1. Sound waves are

### 3.14 understand that light waves are transverse waves which can be reflected, refracted and diffracted

Light and Sound 3.14 understand that light waves are transverse waves which can be reflected, refracted and diffracted 3.15 use the law of reflection (the angle of incidence equals the angle of reflection)

### Waves. Overview (Text p382>)

Waves Overview (Text p382>) Waves What are they? Imagine dropping a stone into a still pond and watching the result. A wave is a disturbance that transfers energy from one point to another in wave fronts.

### The Nature of Sound Waves

Name: The Nature of Sound Waves Read from Lesson 1 of the Sound and Music chapter at The Physics Classroom: http://www.physicsclassroom.com/class/sound/u11l1a.html http://www.physicsclassroom.com/class/sound/u11l1b.html

### Waves and Sound. AP Physics B

Waves and Sound AP Physics B 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. Two types of

### Introduction to Waves. Essential Question: What are the characteristics of mechanical and electromagnetic waves? (S8P4a,d,f)

Introduction to Waves Essential Question: What are the characteristics of mechanical and electromagnetic waves? (S8P4a,d,f) Use the PowerPoint to fill in the Waves graphic organizer as we discuss the characteristics

### physics 1/12/2016 Chapter 20 Lecture Chapter 20 Traveling Waves

Chapter 20 Lecture physics FOR SCIENTISTS AND ENGINEERS a strategic approach THIRD EDITION randall d. knight Chapter 20 Traveling Waves Chapter Goal: To learn the basic properties of traveling waves. Slide

### 5-Minute Refresher: SOUND AND HEARING

5-Minute Refresher: SOUND AND HEARING Sound Key Ideas Sound is a type of energy that involves the vibration of molecules in a medium, such as air or water. Sound is transmitted through a medium as a pressure

### Chapter 11. Waves & Sound

Chapter 11 Waves & Sound 11.2 Periodic Waves In the drawing, one cycle is shaded in color. The amplitude A is the maximum excursion of a particle of the medium from the particles undisturbed position.

### Waves: Recording Sound Waves and Sound Wave Interference (Teacher s Guide)

Waves: Recording Sound Waves and Sound Wave Interference (Teacher s Guide) OVERVIEW Students will measure a sound wave by placing the Ward s DataHub microphone near one tuning fork A440 (f=440hz). Then

### Conceptual Physics Review (Chapters 25, 26, 27 & 28) Chapter 25 Describe the period of a pendulum. Describe the characteristics and properties of

Conceptual Physics Review (Chapters 25, 26, 27 & 28) Solutions Chapter 25 Describe the period of a pendulum. Describe the characteristics and properties of waves. Describe wave motion. Describe factors

### Chapter 17: Change of Phase

Chapter 17: Change of Phase Conceptual Physics, 10e (Hewitt) 3) Evaporation is a cooling process and condensation is A) a warming process. B) a cooling process also. C) neither a warming nor cooling process.

### Standing Waves and the Velocity of Sound

Chapter 8 Standing Waves and the Velocity of Sound 8.1 Purpose In this experiment we will be using resonance points of a sound wave traveling through an open tube to measure the speed of sound in air.

### Answer the following questions during or after your study of Wave Properties. 4. How are refraction and the speed of wave in different media related?

Wave Properties Student Worksheet Answer the following questions during or after your study of Wave Properties. 1. A person standing 385 m from a cliff claps her hands loudly, only to hear the sound return

### v = fλ PROGRESSIVE WAVES 1 Candidates should be able to :

PROGRESSIVE WAVES 1 Candidates should be able to : Describe and distinguish between progressive longitudinal and transverse waves. With the exception of electromagnetic waves, which do not need a material

### Giant Slinky: Quantitative Exhibit Activity

Name: Giant Slinky: Quantitative Exhibit Activity Materials: Tape Measure, Stopwatch, & Calculator. In this activity, we will explore wave properties using the Giant Slinky. Let s start by describing the

### www.ptg.org Visit the Piano Learning Center of the Piano Technicians Guild at www.ptg.org for more fun ways to learn about the piano.

Piano Science Connect Music and Science Age: Elementary, Middle School The piano is one of the most interesting musical instruments you can learn to play. www.ptg.org It is also one of the most versatile

### Lesson 11. Luis Anchordoqui. Physics 168. Tuesday, December 8, 15

Lesson 11 Physics 168 1 Oscillations and Waves 2 Simple harmonic motion If an object vibrates or oscillates back and forth over same path each cycle taking same amount of time motion is called periodic

### LAB 9 Waves and Resonance

Cabrillo College Physics l0l Name LAB 9 Waves and Resonance Read Hewitt Chapter 19 What to learn and explore Almost all of the information that we receive from our environment comes to us in the form of

### 4.4 WAVE CHARACTERISTICS 4.5 WAVE PROPERTIES HW/Study Packet

4.4 WAVE CHARACTERISTICS 4.5 WAVE PROPERTIES HW/Study Packet Required: READ Hamper pp 115-134 SL/HL Supplemental: Cutnell and Johnson, pp 473-477, 507-513 Tsokos, pp 216-242 REMEMBER TO. Work through all

### Sound and stringed instruments

Sound and stringed instruments Lecture 14: Sound and strings Reminders/Updates: HW 6 due Monday, 10pm. Exam 2, a week today! 1 Sound so far: Sound is a pressure or density fluctuation carried (usually)

### What is the essence of waviness? The Wave Model. Waves: examples. Particles. Wave. 1. Ripples on a pond. Think of a leaf, or a cork on the water

Chapter 20: Traveling Waves 20.1 The wave model 20.2 One-dimensional waves 20.3 Sinusoidal waves 20.4 Waves in 2- & 3-dimensions 20.5 Sound and Light Waves 20.6 Power and Intensity 20.7 Doppler Effect

### Harmonic Motion: The Pendulum Lab Student Version

Harmonic Motion: The Pendulum Lab Student Version In this lab you will set up a pendulum using rulers, string, and small weights and measure how different variables affect the period of the pendulum. You

### UNIT 1: mechanical waves / sound

1. waves/intro 2. wave on a string 3. sound waves UNIT 1: mechanical waves / sound Chapter 16 in Cutnell, Johnson: Physics, 8th Edition Properties of waves, example of waves (sound. Light, seismic), Reflection,

### Review of Chapter 25. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Review of Chapter 25 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. The time needed for a wave to make one complete cycle is its b. velocity.

### Resonance in a Closed End Pipe

Experiment 12 Resonance in a Closed End Pipe 12.1 Objectives Determine the relationship between frequency and wavelength for sound waves. Verify the relationship between the frequency of the sound, the

### Sound and Waves Investigations. Level A Investigations. Level B Investigations

Sound and Waves Investigations Level A Investigations A-1 Sound What is sound and how do we hear it? Students are introduced to the relationship between the sounds we hear and their frequencies. They learn

### Light (and other electromagnetic radiation) and Sound

Light (and other electromagnetic radiation) and Sound Introduction Teacher Guidelines L1-3 Light and sound can seem mysterious. It is easy to know when light and sound are present and absent but difficult

### Yerkes Summer Institute 2002

Before we begin our investigations into radio waves you should review the following material on your trip up to Yerkes. For some of you this will be a refresher, but others may want to spend more time

### Energy Transformations

Energy Transformations Concept Sheet Energy Transformations PS.6: The student will investigate and understand states and forms of energy and how energy is transferred and transformed. 1. Energy is the

### How Waves Helped Win the War: Radar and Sonar in WWII

The Science and Technology of WWII How Waves Helped Win the War: Radar and sonar in WWII Objectives: 1. Students will learn some basic historical facts about the role of radar in the Battle of Britain

### Scheme of Work 9 Picture this. Overall learning objectives. Overall learning outcomes. Curriculum learning objectives

Scheme of Work 9 Page 1/8 Overall learning objectives Developing a sense of scale and proportion with regard to measurement of frequency. Understanding of concepts of sound and ultrasound with use of wave

### Grade 8 Science Chapter 4 Notes

Grade 8 Science Chapter 4 Notes Optics the science that deals with the properties of light. Light a form of energy that can be detected by the human eye. The History of Optics (3 Scientists): 1. Pythagoras

### After a wave passes through a medium, how does the position of that medium compare to its original position?

Light Waves Test Question Bank Standard/Advanced Name: Question 1 (1 point) The electromagnetic waves with the highest frequencies are called A. radio waves. B. gamma rays. C. X-rays. D. visible light.

### Experiment 1: SOUND. The equation used to describe a simple sinusoidal function that propagates in space is given by Y = A o sin(k(x v t))

Experiment 1: SOUND Introduction Sound is classified under the topic of mechanical waves. A mechanical wave is a term which refers to a displacement of elements in a medium from their equilibrium state,

### MAKING SENSE OF ENERGY Electromagnetic Waves

Adapted from State of Delaware TOE Unit MAKING SENSE OF ENERGY Electromagnetic Waves GOALS: In this Part of the unit you will Learn about electromagnetic waves, how they are grouped, and how each group

### 16.2 Periodic Waves Example:

16.2 Periodic Waves Example: A wave traveling in the positive x direction has a frequency of 25.0 Hz, as in the figure. Find the (a) amplitude, (b) wavelength, (c) period, and (d) speed of the wave. 1

### The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING PHYSICS. Wednesday, June 17, 2015 1:15 to 4:15 p.m.

P.S./PHYSICS The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING PHYSICS Wednesday, June 17, 2015 1:15 to 4:15 p.m., only The possession or use of any communications

### Responsibility of all areas which could be addressed in this learning journey: Sciences experiences and outcomes:

1 Through this learning journey, learners will be given the opportunity to explore the nature of sound, waves and wave characteristics using a variety of ICT. The learning journey offers opportunities

### The Sonometer The Resonant String and Timbre Change after plucking

The Sonometer The Resonant String and Timbre Change after plucking EQUIPMENT Pasco sonometers (pick up 5 from teaching lab) and 5 kits to go with them BK Precision function generators and Tenma oscilloscopes

### 08/19/09 PHYSICS 223 Exam-2 NAME Please write down your name also on the back side of this exam

08/19/09 PHYSICS 3 Exam- NAME Please write down your name also on the back side of this exam 1. A sinusoidal wave of frequency 500 Hz has a speed of 350 m/s. 1A. How far apart (in units of cm) are two

### Doppler Effect Plug-in in Music Production and Engineering

, pp.287-292 http://dx.doi.org/10.14257/ijmue.2014.9.8.26 Doppler Effect Plug-in in Music Production and Engineering Yoemun Yun Department of Applied Music, Chungwoon University San 29, Namjang-ri, Hongseong,

### STANDING WAVES & ACOUSTIC RESONANCE

REFERENCES & ACOUSTIC RESONANCE R.H. Randall, An Introduction to Acoustics, (Addison-Wesley, 1951), Sect. 7-1, 7-. A.B. Wood, A Textbook of Sound, (Bell & Sons, 1944), pp.179 et seq. Berkeley Physics Course,

### Superposition and Standing Waves. Solutions of Selected Problems

Chapter 18 Superposition and Standing Waves. s of Selected Problems 18.1 Problem 18.8 (In the text book) Two loudspeakers are placed on a wall 2.00 m apart. A listener stands 3.00 m from the wall directly

FIFTH GRADE WORKBOOK students Math/Science Nucleus 1990,2001 APPLIED SCIENCE - SCIENCE AND MATH (5A) PROBLEM: Can you learn how to estimate? PREDICTION: MATERIALS: 3 containers filled with items given

### Energy - Heat, Light, and Sound

Science Benchmark: 06:06 Heat, light, and sound are all forms of energy. Heat can be transferred by radiation, conduction and convection. Visible light can be produced, reflected, refracted, and separated

### Practice Test. 4) The planet Earth loses heat mainly by A) conduction. B) convection. C) radiation. D) all of these Answer: C

Practice Test 1) Increase the pressure in a container of oxygen gas while keeping the temperature constant and you increase the A) molecular speed. B) molecular kinetic energy. C) Choice A and choice B

### Describing Sound Waves. Period. Frequency. Parameters used to completely characterize a sound wave. Chapter 3. Period Frequency Amplitude Power

Parameters used to completely characterize a sound wave Describing Sound Waves Chapter 3 Period Frequency Amplitude Power Intensity Speed Wave Length Period Defined as the time it take one wave vibrate

### Waves - Transverse and Longitudinal Waves

Waves - Transverse and Longitudinal Waves wave may be defined as a periodic disturbance in a medium that carries energy from one point to another. ll waves require a source and a medium of propagation.

### Solution Derivations for Capa #13

Solution Derivations for Capa #13 1 Identify the following waves as T-Transverse, or L-Longitudinal. If the first is T and the rets L, enter TLLL. QUESTION: A The WAVE made by fans at sports events. B

### Mathematical Harmonies Mark Petersen

1 Mathematical Harmonies Mark Petersen What is music? When you hear a flutist, a signal is sent from her fingers to your ears. As the flute is played, it vibrates. The vibrations travel through the air

### Resonance and the Speed of Sound

Name: Partner(s): Date: Resonance and the Speed of Sound 1. Purpose Sound is a common type of mechanical wave that can be heard but not seen. In today s lab, you will investigate the nature of sound waves

### Standing Waves Physics Lab I

Standing Waves Physics Lab I Objective In this series of experiments, the resonance conditions for standing waves on a string will be tested experimentally. Equipment List PASCO SF-9324 Variable Frequency

### P1 4. Waves and their uses

P 4. Waves and their uses P 8 minutes 8 marks Answer all questions using any and all resources. Page of 38 Q. Diagram shows four of the seven types of wave in the electromagnetic spectrum. Diagram J K

### Section 1 Electromagnetic Waves

Section 1 Electromagnetic Waves What are electromagnetic waves? What do microwaves, cell phones, police radar, television, and X-rays have in common? All of them use electromagnetic waves Electromagnetic

### Physics in Entertainment and the Arts

Physics in Entertainment and the Arts Chapter VII Wave Transfer and Waves incident on a rigid boundary almost completely reflect Almost all the wave s energy is reflected back the way it came Waves incident

### Physics 9e/Cutnell. correlated to the. College Board AP Physics 1 Course Objectives

Physics 9e/Cutnell correlated to the College Board AP Physics 1 Course Objectives Big Idea 1: Objects and systems have properties such as mass and charge. Systems may have internal structure. Enduring

### Unit 12.3 Waves Topic 1: Types of waves

Unit 12.3 Waves Topic 1: Types of waves Topic 1 deals with the properties and types of waves (see Syllabus pp. 28 29). It covers: Longitudinal waves. Transverse waves. Electromagnetic waves. Sound waves.

### 18 Q0 a speed of 45.0 m/s away from a moving car. If the car is 8 Q0 moving towards the ambulance with a speed of 15.0 m/s, what Q0 frequency does a

First Major T-042 1 A transverse sinusoidal wave is traveling on a string with a 17 speed of 300 m/s. If the wave has a frequency of 100 Hz, what 9 is the phase difference between two particles on the

### 15160 Resonance Tube Set

CONTENTS Included o (1) Long Tube o (1) Short Tube o (1) Styrene Plug o (1) Tuning Fork, 512 Hz o (1) Rubber Mat, 3 diameter Suggested Accessories o Tuning Forks (other frequencies) o (1) Oscilloscope

### Semester 2. Final Exam Review

Semester 2 Final Exam Review Motion and Force Vocab Motion object changes position relative to a reference point. Speed distance traveled in a period of time. Velocity speed in a direction. Acceleration

### Acoustics: the study of sound waves

Acoustics: the study of sound waves Sound is the phenomenon we experience when our ears are excited by vibrations in the gas that surrounds us. As an object vibrates, it sets the surrounding air in motion,

### Standing Waves on a String

1 of 6 Standing Waves on a String Summer 2004 Standing Waves on a String If a string is tied between two fixed supports, pulled tightly and sharply plucked at one end, a pulse will travel from one end

### Engineering with Sound Lesson Plan

Type of lesson: Challenge Teaching Plan: Engineering with Sound Lesson Plan Goal The goal of this lesson is to introduce the students to sound and its properties and have them apply what they learn to

### Kinetic Theory. Energy. Transfers and Efficiency. The National Grid

AQA P1 Revision Infrared Radiation Heating and Insulating Buildings Kinetic Theory Energy Transfers and Efficiency Energy Transfer by Heating Transferring Electrical Energy Generating Electricity The National

### Dr. Abdel Aziz Hussein Lecturer of Physiology Mansoura Faculty of Medicine

Physiological Basis of Hearing Tests By Dr. Abdel Aziz Hussein Lecturer of Physiology Mansoura Faculty of Medicine Introduction Def: Hearing is the ability to perceive certain pressure vibrations in the

### THE ACOUSTICS OF ROOMS

Killam 1 THE ACOUSTICS OF ROOMS Josiah Killam PHYS 193: The Physics of Music Prof. Steven Errede University of Illinois at Urbana-Champaign Killam 2 For my project for The Physics of Music, I decided to

### Waves - EM spectrum, wave characteristics, wavespeed, ray diagrams

Waves - EM spectrum, wave characteristics, wavespeed, ray diagrams 47 minutes 47 marks Page of 50 Q. (i) Use the words frequency, wavelength and wave speed to write an equation which shows the relationship

### Trigonometric functions and sound

Trigonometric functions and sound The sounds we hear are caused by vibrations that send pressure waves through the air. Our ears respond to these pressure waves and signal the brain about their amplitude

### Lorne Park Secondary School SPH 3UO/E Mock Exam. Time: 1.5 Hours No. of Pages: 15 Name:

Lorne Park Secondary School SPH 3UO/E Mock Exam Time: 1.5 Hours No. of Pages: 15 Name: Instructions to Students This is a practice exam meant to give you an idea of the types of questions and the format

### Physics 1230: Light and Color

Physics 1230: Light and Color Instructor: Joseph Maclennan TOPIC 3 - Resonance and the Generation of Light http://www.colorado.edu/physics/phys1230 How do we generate light? How do we detect light? Concept

### Energy. Mechanical Energy

Principles of Imaging Science I (RAD119) Electromagnetic Radiation Energy Definition of energy Ability to do work Physicist s definition of work Work = force x distance Force acting upon object over distance

### Sound and music. Key concepts of sound and music

Sound and music Introduction Why do we see lightning before we hear the thunder? How do we amplify sound and how do we reduce it? How is it we can hear at all? Sound is all around us every day and it is

Chapter 2: Electromagnetic Radiation Radiant Energy I Goals of Period 2 Section 2.1: To introduce electromagnetic radiation Section 2.2: To discuss the wave model of radiant energy Section 2.3: To describe

### Waves disturbances caused by the movement of energy from a source through some medium.

Oceanography Chapter 10 Waves disturbances caused by the movement of energy from a source through some medium. Floating Gull- Figure 10.1 water is not moving only the energy is moving through the water.

### The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING PHYSICS. Friday, June 20, 2014 1:15 to 4:15 p.m.

P.S./PHYSICS The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING PHYSICS Friday, June 20, 2014 1:15 to 4:15 p.m., only The possession or use of any communications device

### Partnerships Implementing Engineering Education Worcester Polytechnic Institute Worcester Public Schools

Partnerships Implementing Engineering Education Worcester Polytechnic Institute Worcester Public Schools Supported by: National Science Foundation Sound and Waves: 4.D.1A Introduction to Sound and Waves

### XX. Introductory Physics, High School

XX. Introductory Physics, High School High School Introductory Physics Test The spring 2013 high school Introductory Physics test was based on learning standards in the Physics content strand of the Massachusetts

### 11.2 THE DOPPLER EFFECT Notes

11.2 THE DOPPLER EFFECT Notes III. HOW THE DOPPLER EFFECT WORKS WITH SOUND A. SOUND FREQUENCY AND PITCH The frequency of sound waves is proportional to the pitch that we hear. DEMO Tuning Forks f = higher

### The Design and Implementation of Multimedia Software

Chapter 10 Auditory Content The Design and Implementation of Multimedia Software David Bernstein Jones and Bartlett Publishers www.jbpub.com David Bernstein (jbpub.com) Multimedia Software Jones and Bartlett

### Waves and Light Extra Study Questions

Waves and Light Extra Study Questions Short Answer 1. Determine the frequency for each of the following. (a) A bouncing spring completes 10 vibrations in 7.6 s. (b) An atom vibrates 2.5 10 10 times in

ipadagogy Project - Teaching with the ipad Sound Sixth Grade Interactive Student Book Acknowledgments We would like to acknowledge the following people who have contributed in some way to this project:

### Physics Open House. Faraday's Law and EM Waves Change in the magnetic field strength in coils generates a current. Electromagnetic Radiation

Electromagnetic Radiation (How we get most of our information about the cosmos) Examples of electromagnetic radiation: Light Infrared Ultraviolet Microwaves AM radio FM radio TV signals Cell phone signals

### The Physics of Guitar Strings

The Physics of Guitar Strings R. R. McNeil 1. Introduction The guitar makes a wonderful device to demonstrate the physics of waves on a stretched string. This is because almost every student has seen a

### Energy and Energy Transformations Test Review

Energy and Energy Transformations Test Review Completion: 1. Mass 13. Kinetic 2. Four 14. thermal 3. Kinetic 15. Thermal energy (heat) 4. Electromagnetic/Radiant 16. Thermal energy (heat) 5. Thermal 17.