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Properties of sound

Properties of sound . November 29, 2010. Speed of Sound. Speed depends on the medium Speed changes when the medium changes Speed of sound depends on temperature The cooler the medium, the slower the speed of sound. Pitch. How high or low you perceive a sound to be is the pitch

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Properties of sound

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  1. Properties of sound November 29, 2010

  2. Speed of Sound • Speed depends on the medium • Speed changes when the medium changes • Speed of sound depends on temperature • The cooler the medium, the slower the speed of sound

  3. Pitch • How high or low you perceive a sound to be is the pitch • The pitch of a sound is determined by the frequency of the sound wave • What is frequency? • Can we hear all frequencies? • NO!!!!

  4. What Do We Hear? • The average human ear can detect sounds that have frequencies between 20 Hz and 20,000 Hz. • Anything lower than 20 Hz is described as infrasonic • Anything higher than 20,000 Hz is described as ultrasonic • Ultrasonic waves are used to clean jewelry and to remove ice from metal

  5. Loudness of Sound • Loudness is how loud or soft a sound is perceived to be • Loudness depends on amplitude • What is amplitude? • The larger the amplitude, the louder the sound • The SI unit for loudness is the decibel (dB)

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