Find the fundamental frequency and third harmonic of an organ pipe of length 50cm. Assume the organ pipe is closed at one end and the speed of sound in.

Slides:

Advertisements

Similar presentations

1. If this standing wave is 3.2 m long, what is the wavelength? (2.56 m)

Advertisements

Musical Instruments Contents: What is the difference between high and low notes? Why do different instruments sound different? What does it mean to play.

Resonance: More Practice Resonance occurs when the frequency of the forcing vibration is _________ the natural frequency of the object. A. less thanC.

Beats  Different waves usually don’t have the same frequency. The frequencies may be much different or only slightly different.  If the frequencies are.

Standing Waves 1 Part 1: Strings (Transverse Standing Waves) 05/03/08.

Sound Chapter 13.

Mr. DelGiudice Honors Physics. Do Now Complete in next 5 min Define what wavelength and amplitude of a wave are and draw a picture of them. How do we.

Physics 1251 The Science and Technology of Musical Sound Unit 3 Session 28 MWF Clarinets and Other Reeds Unit 3 Session 28 MWF Clarinets and Other Reeds.

Resonance in Air Columns. Closed Air Columns Column that is closed at one end and open at the other.

1. A Pan pipe is 62.2 cm long, and has a wave speed of 321 m/s. It is a one end open, one end fixed pipe. a. Draw the first three harmonics of vibration.

Questions about Sound in pipes

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.

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

Diffraction What happens when a wave encounters an obstacle or opening? It ``bends’’ around it. Consider a wave front (a wave in 2D) viewed from above.

MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”

A guitar string of length 80cm is tuned to the musical note A which has a (fundamental) frequency of 220Hz. a) Calculate the speed of the wave along the.

Musical Instruments. Standing Waves  Waves that reflect back and forth interfere.  Some points are always at rest – standing waves.

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.

Stringed Instruments (Ex. Guitars, pianos, violins)  Vibrating the string sets up a standing wave, the vibration from the string resonate the sounding.

An organ pipe open at both ends is 1. 5 m long

What about the rubber bands determines pitch? Musical Instruments - Strings  The pitch or frequency of a string is determined by the string’s velocity.

Chapter 12 Sound Hr Physics. Sound  Vibrations in matter. No one need be around to hear it.  Composed of Compressions & Rarefactions.  Compressions.

Unit 04 - Sound. Vibrating Strings  Each string on a guitar or violin has a distinct frequency when set in motion.  The frequency or pitch of a string.

Standing Waves Music to my ears ? II.

Chapter 12 Section 3: Harmonics.

Music, Math, and Motion with Dr. Arun Chandra & Dr. E.J. Zita The Evergreen St. College Fall week 4 Tuesday 21 Oct

The Principle of Linear Superposition and Interference Phenomena

Sound Notes 3 Frequency, Pitch and Music. Frequency Frequency – the number of complete waves ______ _____________. Different sounds have ____________.

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.

Standing Waves Contents: Basic Concept Drawing standing waves Counting quarter wavelengths Calculating wavelengths.

Harmonics Review Music to my ears?. Standing Waves Vibrating Strings Each standing wave has a different frequency Single pitches = Multiple frequencies.

For a standing wave to be set up in a string there has to be two waves travelling in it. Explain what has to be the same and what has to be different about.

If two sounds are only slightly off in terms of frequency The ‘Beats’  Produce a periodic rise and fall of amplitude (volume)  Throbbing Sound = Beats.

1. A pulse traveling along a bullwhip is an example of a __________ wave.

Standing Waves Contents: Basic Concept Drawing standing waves Counting quarter wavelengths Calculating wavelengths.

Unit: Sound and Light Lesson 3: Music Essential Questions: 1.) What determines sound quality?

12-3 Harmonics.

15.1 Properties and Detection of Sound Interference of sound waves.

1 Transverse Standing Waves The Principle of Linear Superposition Chapter 17 Lesson 2.

Traveling Waves Standing Waves Musical Instruments Musical Instruments all work by producing standing waves. There are three types of instrument.

Musical Instruments. Notes  Different musical notes correspond to different frequencies  The equally tempered scaled is set up off of 440 A  meaning.

Sound Lecture 5. Goals  Understand Standing Waves  Gain an understanding of fundamental sound concepts such as intensity and beats  Learn about applications.

Harmonics on the guitar Resonating air column (open ended)

Open Pipe Resonance Plus some examples. Open Pipe Resonance An open pipe resonator is a resonating tube with both ends open The open ends have antinodes.

Standing Waves.

Wave Interference A material object will not share its space with another object, but more than one wave can exist at the.

SPH3U: Waves & Sound Musical Instruments 2.

Review – Standing Waves

Musical Instruments.

Sources of Sound To produce sound, we have to make air molecules move back and forth; we can do this either with acoustic vibrations in an enclosed space.

Notes 21.2: RESONANCE.

String and Air Instruments

String and Air Instruments

Part 3 Harmonics Standing Waves and Pitch

Open and Closed Pipes Sound.

THE PHYSICS OF MUSIC ♫.

Waves at Boundaries.

v = f fn = nf1  = 5558 m 343 = 5558(f) f = Hz 325th harmonic

Open-End Air Columns Standing Waves.

Part 3 Harmonics Standing Waves and Pitch

Music Examples Answers

Chapter 15 Notes Sound.

Presentation transcript:

Find the fundamental frequency and third harmonic of an organ pipe of length 50cm. Assume the organ pipe is closed at one end and the speed of sound in air is 330ms -1 Do now: Hātarei, 16 Haratua 2015

New animations on moodle Clarinet – flute clip (2 min) Harmonics on a guitar (2 min) 3D mid-air acoustic standing waves (2 min) Cool stuff:

Read and make notes p69-72: Why does the same note sound different on different instruments? What factors determine the pitch on a guitar string? What are beats? Finish Activity 5A, start 5B Today’s Plan:

A guitar string of length 80cm is tuned to the musical note A which has a (fundamental) frequency of 220Hz. a) Calculate the speed of the wave along the guitar string Do now: Hātarei, 16 Haratua 2015 A different note is then played by placing your finger half-way along the string. b)Calculate the frequency of the new note

Halving the length produces a wave of twice the frequency – this is one octave