4.3 Quiz

Module 4.3 Quiz

1. The ________ is the quality of sound waves that is associated with changes in pitch.
A frequency
B amplitude
C pinna
D decibel
Correct answer: A

2. The amplitude of a sound wave determines its loudness; ________-amplitude sound waves are louder than ________-amplitude waves.
A low; high
B short; tall
C wide; narrow
D high; low

Correct answer: D

3. ________ explains pitch perception when hair cells are stimulated at the same rate that a sound wave cycles.
A Place theory
B Frequency theory
C The volley principle
D Switch theory
Correct answer: B

4. Neurons cannot fire fast enough to keep up with high-pitched sound waves. Therefore, they alternate firing according to the ________.
A place theory
B frequency theory
C volley