Chapter 12 Objectives Differentiate between the harmonic series of open and closed pipes. Calculate the harmonics of a vibrating string and of open and.

Slides:



Advertisements
Similar presentations
Applications of Resonance Harmonics and Beats. Beats Not that kind Not that kind This is due to the interference of two waves of similar frequencies.
Advertisements

General Physics Mrs. Dimler
MUSIC NOTES Noise Versus Music  What is the difference between noise and music?  Answer: The appearance of the waveform.  What is the difference between.
SPH3U Exam Review Waves and Sound.
Beats  Different waves usually don’t have the same frequency. The frequencies may be much different or only slightly different.  If the frequencies are.
Sound Chapter 13.
Sound Intensity and Resonance. Intensity – the rate at which energy flows through a unit of area perpendicular to the direction of wave motion. Intensity.
Chapter 14 Sound. Using a Tuning Fork to Produce a Sound Wave A tuning fork will produce a pure musical note A tuning fork will produce a pure musical.
SPH3U – Physics 11 University Preparation – Unit 4 – Waves & Sound Created by: Mr. D. Langlois – GECDSB – SPH3U - Unit 4.
Resonance in Air Columns. Closed Air Columns Column that is closed at one end and open at the other.
Ch 20 SOUND Sound is a compression wave in an elastic medium. These can include solids, liquids and gases or a plasma.
Chapter 12 Preview Objectives The Production of Sound Waves
Harmonics Physics Chapter 13-3 Pages A. Standing waves on a vibrating string Fundamental frequency – lowest frequency of vibration of a standing.
Standing Waves When an incident wave interferes with a reflected wave to form areas of constructive and destructive interference. When an incident wave.
THE PHYSICS OF MUSIC ♫. MUSIC Musical Tone- Pleasing sounds that have periodic wave patterns. Quality of sound- distinguishes identical notes from different.
Sound Waves Sound waves are divided into three categories that cover different frequency ranges Audible waves lie within the range of sensitivity of the.
Vibrating Strings and Resonance in Air Columns. String Instruments  In many musical instruments, the source sets a string into vibration  Standing waves.
Sound quality and instruments  Different notes correspond to different frequencies  The equally tempered scaled is set up off of 440 A  meaning the.
A “physical phenomenon that stimulates the sense of hearing.”
13.3. Harmonics A vibrating string will produce standing waves whose frequencies depend upon the length of the string. Harmonics Video 2:34.
Chapter 13 - Sound 13.1 Sound Waves.
Chapter 13: Sound Camila Enríquez Juliana Borrero.
Chapter 17 The Principle of Linear Superposition and Interference Phenomena.
Sound Intensity and Resonance
Chapter 12 Sound Hr Physics. Sound  Vibrations in matter. No one need be around to hear it.  Composed of Compressions & Rarefactions.  Compressions.
Standing Waves Music to my ears ? II.
Chapter 12 Section 3: Harmonics.
© Houghton Mifflin Harcourt Publishing Company Preview Objectives The Production of Sound Waves Frequency of Sound Waves The Doppler Effect Chapter 12.
Sound Waves The production of sound involves setting up a wave in air. To set up a CONTINUOUS sound you will need to set a standing wave pattern. Three.
Sound.
M USIC. S TANDING W AVES At the right frequencies a constrained wave will produce a standing wave Standing waves appear stationary Result of constructive.
The production of sound Waves always begin with A vibrating object.
The Physics of Musical Instruments
Harmonics. Each instrument has a mixture of harmonics at varying intensities Principle of superposition Periodics- Repeating patterns of waveforms.
Longitudinal Standing Waves antinodes (max. vibration) nodes (no vibration)
SoundSection 3 What do you think? A violin, a trumpet, and a clarinet all play the same note, a concert A. However, they all sound different. What is the.
Physics. Wave and Sound - 4 Session Session Objectives.
Superposition and Wave Interference
The Physics of Music Waves
Waves and Sound Honors Physics.
Harmonics Review Music to my ears?. Standing Waves Vibrating Strings Each standing wave has a different frequency Single pitches = Multiple frequencies.
Standing sound waves. Sound in fluids is a wave composed of longitudinal vibrations of molecules. The speed of sound in a gas depends on the temperature.
Sound Harmonics. Standing Waves on a Vibrating String  On an idealized string, the ends of the string cannot vibrate They should both be nodes  So the.
Sound Waves The production of sound from a sound wave begins with a vibrating object.
Chapter 12 Preview Objectives The Production of Sound Waves
12-3 Harmonics.
15.1 Properties and Detection of Sound Interference of sound waves.
Physics Mrs. Dimler SOUND.  Every sound wave begins with a vibrating object, such as the vibrating prong of a tuning fork. Tuning fork and air molecules.
The Production of Sound Waves Every sound wave begins with a vibrating object, such as the vibrating prong of a tuning fork. Sound waves are longitudinal.
Holt Physics Chapter 13 Sound.
FCI. Faculty of Computer and Information Fayoum University FCI.
13.3 Harmonics pp Mr. Richter. Agenda  Check 13.1 Homework  Finish Notes from 13.2  Forced Vibrations and Resonance  Notes:  Harmonics.
SoundSection 1 © Houghton Mifflin Harcourt Publishing Company Preview Section 1 Sound WavesSound Waves Section 2 Sound Intensity and ResonanceSound Intensity.
Music Music is a “ pleasant ” sound (longitudinal) wave. The pitch is the frequency of the wave. The loudness is the amplitude of the wave. Music is made.
Sound.
Chapter Summary 15.1 Properties and Detection of Sound
CHAPTER 13 Sound.
Wave Interference A material object will not share its space with another object, but more than one wave can exist at the.
Standing Wave & Resonance
Notes 21.2: RESONANCE.
Chapter 15 Sound: The Physics of Music PPTB
Ch. 13 Sound.
Chapter 13 Objectives Explain why resonance occurs.
Standing waves.
THE PHYSICS OF MUSIC ♫.
14-7 Superposition and Interference
1 If a guitar string has a fundamental frequency of 500 Hz, which one of the following frequencies can set the string into resonant vibration? (A) 250.
How to Use This Presentation
Sound Harmonics.
Chapter 15 Notes Sound.
Presentation transcript:

Chapter 12 Objectives Differentiate between the harmonic series of open and closed pipes. Calculate the harmonics of a vibrating string and of open and closed pipes. Relate harmonics and timbre. Relate the frequency difference between two waves to the number of beats heard per second. Section 3 Harmonics

Click below to watch the Visual Concept. Visual Concept Chapter 12 Section 3 Harmonics Fundamental Frequency

Chapter 12 Standing Waves on a Vibrating String The fundamental frequency, which corresponds to this wavelength, is the lowest frequency of vibration. Section 3 Harmonics

Click below to watch the Visual Concept. Visual Concept Chapter 12 Section 3 Harmonics Harmonic Series

Chapter 12 Standing Waves on a Vibrating String, continued The harmonic series is a series of frequencies that includes the fundamental frequency and integral multiples of the fundamental frequency. Harmonic Series of Standing Waves on a Vibrating String Section 3 Harmonics

Chapter 12 The Harmonic Series Section 3 Harmonics

Chapter 12 Standing Waves in an Air Column If both ends of a pipe are open, there is an antinode at each end. In this case, all harmonics are present. Harmonic Series of a Pipe Open at Both Ends Section 3 Harmonics

Chapter 12 Standing Waves in an Air Column, continued If one end of a pipe is closed, there is a node at that end. In this case, only odd harmonics are present. Harmonic Series of a Pipe Closed at One End Section 3 Harmonics

Chapter 12 Harmonics of Open and Closed Pipes Section 3 Harmonics

Chapter 12 Sample Problem Section 3 Harmonics Harmonics What are the first three harmonics in a 2.45 m long pipe that is open at both ends? What are the first three harmonics when one end of the pipe is closed? Assume that the speed of sound in air is 345 m/s.

Click below to watch the Visual Concept. Visual Concept Chapter 12 Section 3 Harmonics Timbre

Chapter 12 Timbre Timbre is the musical quality of a tone resulting from the combination of harmonics present at different intensities. Section 3 Harmonics

Chapter 12 Harmonics of Musical Instruments Section 3 Harmonics

Click below to watch the Visual Concept. Visual Concept Chapter 12 Section 3 Harmonics Beats

Chapter 12 Beats When two waves of slightly different frequencies interfere, the interference pattern varies in such a way that a listener hears an alternation between loudness and softness. The variation from soft to loud and back to soft is called a beat. Section 3 Harmonics

Chapter 12 Beats Section 3 Harmonics

How many beats are hear if tuning forks of 400 Hz and 404 Hz are played simultaneously?