Juan and Joseph are opera singers.Juan is a baritone.Joseph is a tenor: his voice is higher-pitched.With respect to their physical properties,the sound waves corresponding to Juan's voice are lower in _____ than those corresponding to Joseph's voice; that is,they are lower in _____.
A) frequency; decibels
B) frequency; hertz
C) amplitude; decibels
D) amplitude; hertz

Question

Quizplus · Accepted Answer

The term "pitch" refers to the perceived highness or lowness of a sound, which is directly related to the frequency of the sound waves. A higher-pitched sound wave has a higher frequency, while a lower-pitched sound wave has a lower frequency. Therefore, Juan's lower-pitched voice will have sound waves that are lower in frequency (Choice B) compared to Joseph's higher-pitched voice. The term "decibels" refers to the magnitude of the sound wave or its loudness, while the term "hertz" refers to the frequency of the sound wave. The amplitude of a sound wave refers to its maximum displacement from its rest position, and is not directly related to pitch.

Juan and Joseph Are Opera Singers