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34 True/False questions

  1. infrasonic wavesterm for sonic waves with frequencies above 20,000 Hz, the upper limit of the audio range

          

  2. shock waveanother term for sound waves

          

  3. one decibelthe just noticeable difference, or the smallest difference a human ear can detect

          

  4. Mach numbersoen common measure of loudness

          

  5. soundterm for the movement of longitudinal waves through an elastic medium, whether solid, liquid, or gas

          

  6. cavitationterm for two notes with one twice the frequency of the other; heard as the same note at different levels

          

  7. Trueterm for a sound of definite pitch produced by a singing voice or a musical instrument

          

  8. threshold of hearingterm for a violent disturbance traveling outward, that occurs when an object breaks the sound barrier

          

  9. ultrasonic wavesterm for sonic waves with frequencies above 20,000 Hz, the upper limit of the audio range

          

  10. octaveterm for a sound of definite pitch produced by a singing voice or a musical instrument

          

  11. positive, negativeFor the Doppler equation, any motion of one toward the other is ____, and any motion of one away from the other is _____.

          

  12. relative intensityterm for the amount of energy flowing per unit time through a unit area at right angles to wave motion; quantity that represents the strength of sound

          

  13. Doppler effectthe just noticeable difference, or the smallest difference a human ear can detect

          

  14. nonlinear receiverthe just noticeable difference, or the smallest difference a human ear can detect

          

  15. sonic wavesterm for sonic waves with frequencies above 20,000 Hz, the upper limit of the audio range

          

  16. displacement wave trainterm for the undulating variation in displacement of molecules along the path of a sound wave

          

  17. equilibriumterm for the sound heard when a shock wave sweeps over listeners at ground level

          

  18. audio spectrumterm for the range of frequencies or wavelengths that can be heard

          

  19. elastic mediumterm for a molecule's original position

          

  20. noteterm for a sound of definite pitch produced by a singing voice or a musical instrument

          

  21. hardness, density, and temperatureScientific studies have shown that perceived loudness is determined, not by absolute intensity, but by the ___ __ _____ of absolute intensity.

          

  22. pitchterm for our perception of audible frequency

          

  23. Savart's wheelterm for a toothed disk that demonstrates pitch as it spins on its axis

          

  24. ultrasonic tomographyterm for sonic waves with frequencies above 20,000 Hz, the upper limit of the audio range

          

  25. loudnessterm for the human perception of intensity

          

  26. amplitudeterm for maximum displacement of a wave

          

  27. supersonic speedterm for a speed past that of sound; breaking the sound barrier

          

  28. decibeloen common measure of loudness

          

  29. Trueterm for a sound of definite pitch produced by a singing voice or a musical instrument

          

  30. mean free pathterm for the average distance of travel between collisions

          

  31. TrueTrue or False: Sound is a periodic wave train.

          

  32. intensityterm for the amount of energy flowing per unit time through a unit area at right angles to wave motion; quantity that represents the strength of sound

          

  33. order of magnitudeScientific studies have shown that perceived loudness is determined, not by absolute intensity, but by the ___ __ _____ of absolute intensity.

          

  34. sonic boomterm for the sound heard when a shock wave sweeps over listeners at ground level