Chapter 2: Sound Flashcards
Compressed molecules means they are
Squeezed together
Rarefied molecules means they are
Stretched apart
Sound is what type of wave
Mechanical, longitudinal
Sound travels in a ______ line
Straight
What are acoustic propagation properties
Effects of a medium on sound wave
What are biologic effects
Effect of sound wave in a tissue
Sound waves are also known as
Acoustic waves
Oscillation means
Vibration
What are the three acoustic variables used to identify sound waves
Pressure, distance and density
What are the 7 acoustic parameters used to describe sound
Period, frequency, amplitude, power, intensity, wavelength, propagation speed
Transverse waves travel ______ to where they come from
Perpendicular
Longitudinal waves travel_____ to where they arise from
Parallel
When two waves with different frequencies interfere, what happens
Both constructive and destructive interference occur
Two in phase waves meet what kind of interference occurs
Constructive
When two out of phase waves interfere what interference occurs
Destructive
