Physics of Sound Part 1

Dec 15, 2013

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Physics of Sound Part 1. Sound waves How they are generated and travel. Sound Waves. Generation and Propagation Sound wave = changes in pressure caused by vibrating object Compression = High pressure Rarefaction = Low pressure Sound needs a medium to “vibrate”

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Physics of Sound Part 1

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Physics of Sound

Physics of Sound. Sound is a series of atmospheric pressure waves produced by a vibration The height (amplitude) corresponds to loudness and the wavelength to frequency. Physics of Sound. Loudness is determined by the amount of pressure produced by a wave measured in decibels

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Physics of Sound

Physics of Sound. Logarithms. Do you know how to use your calculator? Find the following functions + , - , x , / , ^ , log The log is the exponent to which 10 is raised, representing a number. Antilogarithm. The antilog is 10 raised to the x power, or 10 x. Logarithms.

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Physics of Sound

Physics of Sound. Investigation 2: Good Vibrations Part 2 Length and Pitch. objectives. I can describe what happens to the pitch and vibration when the length of a sound source changes. Introduce the explorations . We have four new sound instruments to explore. The Waterphone

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Physics of Sound

Physics of Sound. Investigation 4: Sound Challenges Part 1 Sound Challenges. objectives. Decrease the volume. We have a challenge for you. We have a problem. The volume of the tone generator is very loud, but I cannot decrease the volume.

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Physics of Sound

Physics of Sound. Investigation 1: Dropping In Day 2 Drop Codes. Objectives . I can create a drop code and use it to send sound messages. I can use a drop code to understand sound messages. Sounds Used for Information.

269 views • 15 slides

Physics of Sound

Physics of Sound. Investigation 2: Good Vibrations Part 1 Vibration and Pitch. Objectives. I can identify HIGH and LOW pitches. I can compare the vibrations of high and low pitches. I can compare pitch and volume. I can explain what happens to vibrations when the pitch changes.

426 views • 14 slides

Physics of Sound

Physics of Sound. Investigation 1: Dropping In Part 3 Sound and Vibrations. Objectives. I can identify a sound source . I can identify a sound receiver . I can describe , orally and in writing, what happens to vibrations when volume changes . Sound and Vibrations.

460 views • 25 slides

Physics of sound

Physics of sound. Loudness Pitch Anatomy of our ears. How are sound produced?. 10 second a ctivity: Make an “ aaahhhhh ” sound, meanwhile, place your hand on the front of your throat Can you feel vibrations?. Sounds are produced by VIBRATIONS

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Physics of Sound

Physics of Sound. Investigation 1: Dropping In Day 1. Objectives. I can use adjectives to describe properties of sounds. I can identify objects by the sounds they make. I can discriminate sounds by their characteristics . I can complete analogies using vocabulary words. Listen.

548 views • 16 slides

Physics of Sound Investigation 1, Part 3

Sound and Vibrations. Physics of Sound Investigation 1, Part 3. Materials. Student Sheet no. 4 called The Tuning Fork Student Sheet no. 5 called The Long Gong Cord with bead Wood blocks Tone generator Beans 9-V Battery Meter tape Nail Pliers with wire cutters Scissors Tape

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Physics of Sound Investigation 2, Part 1

Physics of Sound Investigation 2, Part 1. Vibration and Pitch. Materials. Tongue depressor per pair Door Fiddler (cord with bead and block) Beans Tone Generator with 9-V Battery. Overview. Sound comes from a variety of sources People Musical Instruments Machines Nature

315 views • 13 slides

Physics of Sound Investigation 3, Part 1

Physics of Sound Investigation 3, Part 1. Sounds through Air and Water. M aterials. Student sheet no. 13 called Sounds through the Air Student sheet no. 14 called Sounds through Water Tone generator with 9-V battery Megaphone Paper fasteners Large plastic bags Tuning fork Listening tube

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Physics of Sound Investigation 2, Part 3

Tension and Pitch. Physics of Sound Investigation 2, Part 3. Materials. Student sheet no. 11 called The Minigutbucket Student sheet no. 12 called The FOSS- ulele Large plastic bags Small nail Scissors Metric tape 2 Plastic cups 50 cm string 3 large paper clips Pencil 250 cm string

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PHYSICS of SOUND Grade11

PHYSICS of SOUND Grade11. With CRO and Signal Generator. C.M. Bali, BSc (Hons) MSc MEd Teacher Dept of Mathematics and Science (Physics) Miles Macdonell Collegiate, Winnipeg. Grade 11Physics Outcomes for Sound. S3P-1-17 : How sounds are produced, transmitted and detected

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Physics of Sound. Investigation 3: How Sound Travels Part 1 Sounds Through Air and Water. objectives. I can describe what happens to sound when it travels through water. I can explain how sounds can be amplified in air. I can explain how ears help us hear. Sounds through air and water.

324 views • 15 slides

PHYSICS OF SOUND

PHYSICS OF SOUND. Sound. Produced when an object or surface vibrates rapidly Transmitted through any elastic substance such as air, water, or bone. Density of the substance determines the speed at which the sound and pressure waves will travel. Perception of Sound. Otolith Organs.

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Sound Physics. Outline. What is sound? Graphic representation of sound Classifying sounds The Acoustic Filter Resonance The decibel. What is sound?. It may be defined as the propagation of a pressure wave in space and time. propagates through a medium.

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Physics of Sound

Physics of Sound. Wave equation: Part. diff. e quation relating pressure and velocity as a function of time and space Nonlinear contributions are not considered. Valid under small part ical Velocity. Three steps Lossless uniform tube model Nonuniform, losses due to voval tract walls.

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The Physics of Sound. Sound begins with a vibration of an object Vibrating object transfers energy to air medium All complex vibration patterns seen as a combination of many simple vibration patterns Simple harmonic motion Elastic restoring force

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PHYSICS – Sound. LEARNING OBJECTIVES. What is a wave?. A wave is an oscillation that moves through space, transferring energy from one place to another. Which of these is not an example of a wave?.

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