answers verified to pass 2025
High frequency of vibration, as measured in hertz (Hz), would create
a. high pitch.
b. low pitch.
c. loudness.
d. softness.
e. timbre. - correct answer A
Sound can best be thought of as
a. compression of air molecules by an object.
b. changes in air pressure produced by the vibration of an object.
c. particles of energy that travel at better than 20 miles per hour.
d. packets of energy.
e. expansion of air molecules produced by an object as it moves through air. -
correct answer B
Which of the following pairs belong together?
a. amplitude; pitch
b. complexity; pitch
c. purity; timbre
d. amplitude; loudness
, e. hue; wavelength - correct answer A
The pitch of a sound stimulus is related to the physical characteristic of
a. vibration amplitude.
b. the distance between the sound source and the detector.
c. sound wave complexity.
d. frequency of vibration.
e. sound intensity. - correct answer D
The complexity of a sound wave determines the psychological dimension
known as
a. hue.
b. pitch.
c. loudness.
d. saturation.
e. timbre. - correct answer E
The loudness of a sound is related to
a. the amplitude of sound vibration.
b. the distance between the successive air vibrations.
c. the complexity of the sound waves.
d. its frequency of vibration.
e. the total duration of the sound stimulation. - correct answer A