14.1 Speed of Sound, Frequency, and Wavelength
What component of a longitudinal sound wave is analogous to a trough of a transverse wave?
What is the frequency of a sound wave as perceived by the human ear?
What properties of a solid determine the speed of sound traveling through it?
- mass and density
- rigidity and density
- volume and density
- shape and rigidity
Does the density of a medium affect the speed of sound?
Does a bat make use of the properties of sound waves to locate its prey?
Do the properties of a sound wave change when it travels from one medium to another?
14.2 Sound Intensity and Sound Level
Which nerve carries auditory information to the brain?
- buccal nerve
- peroneal nerve
- cochlear nerve
- mandibular nerve
14.3 Doppler Effect and Sonic Booms
True or false—The Doppler effect also occurs with waves other than sound waves.
What is the frequency of a stationary sound source if you hear it at 1200.0 Hz while moving towards it at a speed of 50.0 m/s? (Assume speed of sound to be 331 m/s.)
- 1410 Hz
- 1380 Hz
- 1020 Hz
- 1042 Hz
14.4 Sound Interference and Resonance
How is human speech produced?
- Human speech is produced by shaping the cavity formed by the throat and mouth, the vibration of vocal cords, and using the tongue to adjust the fundamental frequency and combination of overtones.
- Human speech is produced by shaping the cavity formed by the throat and mouth into a closed pipe and using tongue to adjust the fundamental frequency and combination of overtones.
- Human speech is produced only by the vibrations of the tongue.
- Human speech is produced by elongating the vocal cords.