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BJU Physical Sci 18
BJU Physical Science Ch 18 6th edition
| Term | Definition |
|---|---|
| acoustic amplification | The process of making a sound louder. |
| acoustic spectrum | The continuum of all possible sound waves. |
| echolocation | The process that uses the time interval and direction of an echo to determine the position of an object. |
| fundamental tone | The longest (lowest frequency) standing wave produced by a vibration of a structure. |
| harmonic | The fundamental tone and its overtones. |
| infrasonic wave | An electromagnetic wave that is just below (less energetic than) red visible light; used in astronomy, medical imaging, and wireless devices. |
| intensity | A measure of the power contained in a wave; often refers to sound or electromagnetic waves. |
| loudness | Human perception of the intensity of a sound wave. |
| overtone | A shorter, faster vibration (higher pitch) in addition to the fundamental tone produced by a vibrating structure. |
| pitch | How high or low an audible tone sounds to the human ear; related to the concept of wave frequency. |
| sonar | A device for detecting submerged objects by using sounds; an acronym for sound navigation and ranging. |
| sonography | Technology that uses ultrasound to create images of objects found inside other objects. |
| sound energy | A type of mechanical wave energy that can be detected by the human ear. |
| timbre | The distinctive sound of an instrument; also called quality. |
| ultrasonic wave | An electromagnetic wave that is just beyond (more energetic than) violet visible light; used for medical treatment, dentistry, and killing bacteria. |
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marchscience
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