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26 Cards in this Set
- Front
- Back
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Sound - - Phychological Definion
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Sensation caused on human ear by acoustic event or comressional wave (listener is needed -- interpret loudness or pitch)
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Physical Definition of Sound
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Disturbance in a medium that is caused by a vibrating body that sets the medium into a vibration Need: Sound source capable of vibrating and medium capable of vibrating
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A sound source must have
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physical properties of mass and elasticity
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A medium is an agent in which a sound wave (caused by vibratory movement) flows through material where energy transfer occurs
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A medium must have
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mass and elasticity
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The simplest ocillation is
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Simple harmonic motion
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MASS IS
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the amount of matter in an object a body's resistence to change (measurement) measurment of not wanting ot change # of atoms in a gram will be consistent
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The greater the mass..
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the greater the body's resistence to change
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1kg =
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1000g
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Mass
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(m) resistence to change
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Weight
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a force -- the attractive force that gravity exerts on a mass
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Force
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(F) an influence that can deform or change an object's state of motion. The push or pull on an object in a specific direction
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Acceleration
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a
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F =
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F=ma a= acceleration m=mass F=Force
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Weight
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(w) is a force exerted on mass
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If mass and weight increase proportionally, this would be called a
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direct relationship
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If one element increases and the other decreases this would be called an
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indirect relationship
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Density
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(p) amount of mass per unit volume p=m/v where density has a direct relationship to mass and densiity has an indirect relationship to volume
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Elasticity
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(E) "object's Springyness" property that allows an object to return to it's original shape once a force has acted upon it. object's ability to resist distortion or changes in shape or volume
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What element have the quality of elasticity?
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all solid, liquid and gas
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What is the point when a force applied adequate enough to cause permanent distortion?
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Elastic LImit Point of breaking depends on internal elasticity
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A sound source must have both
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mass and elasticity
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Second dummy question
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Second dummy answer
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Third dummy question
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Third dummy answer
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