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keyword chapter 15 (Sound is produced when something vibrates (pitch (The…
keyword chapter 15
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wave a disturbance that carries energy through matter or space and transfers energy without transferring matter
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the loudness of a sound is the intensity of the sound as perceived by the ear and interpreted by the brain.
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The change in frequency of sound caused by the movement of either the source, the detector, or both is called the Doppler effect.
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The tube is placed in water so that the bottom end of the tube is below the water surface. A resonating tube with one end closed to air is called a closed-pipe resonator.
An open-pipe resonator is a resonating tube with both ends open that will resonate with a sound source.
For a musical instrument, the lowest frequency of sound that resonates is called the fundamental
A closed pipe also will resonate at 3f1, 5f1, and so on. These higher frequencies, which are whole-number multiples of the fundamental frequency, are called harmonics.
If the combina- tion of pitches is pleasant, the sounds are said to be in consonance.
Two frequencies that are nearly identical interfere to produce oscillating high and low sound levels called a beat.
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