Sound
__________ is the concentration of force in an area. - CORRECT ANSWER-Pressure
__________ is the concentration of mass in a volume. - CORRECT ANSWER-Density
_________ is a measure of particle motion. - CORRECT ANSWER-Distance
What are the units for pressure? - CORRECT ANSWER-Pascals (Pa)
What are the units for density? - CORRECT ANSWER-kg/cm3
What are two units used for distance? - CORRECT ANSWER-cm
mm
What are the seven acoustic parameters? - CORRECT ANSWER-Period
Frequency
Amplitude
Power
Intensity
Wavelength
Propagation speed
All waves carry ________ from one location to another - CORRECT ANSWER-Energy
Sound waves must move through a __________ in order to travel from different
locations. - CORRECT ANSWER-Medium
Sound can travel through a vacuum. True or False? - CORRECT ANSWER-False
, Sound travels in a __________ line.
a. Curved
b. Straight
c. Wavelike - CORRECT ANSWER-Straight
What are the three acoustic variables used to distinguish between sound waves and
other types of waves? - CORRECT ANSWER-Pressure
Density
Distance
In a ____________ wave particles move in a direction that is perpendicular to the
direction that the wave moves. - CORRECT ANSWER-Transverse
In a ____________ wave, particles move in the same direction that the wave
propagates. - CORRECT ANSWER-Longitudinal
Sound is a __________ wave
a. Transverse
b. Longitudinal - CORRECT ANSWER-Longitudinal
A pair of waves are considered ____________ when their peaks and troughs occur at
the same time and at the same location. - CORRECT ANSWER-In-phase
A pair of waves are considered _________ when their peaks and troughs occur at
different times and locations. - CORRECT ANSWER-Out-of-phase
___________ is the combination of two or more sound waves traveling through a
medium at the same time and location. - CORRECT ANSWER-Interference
What are the two types of interference? - CORRECT ANSWER-Constructive
interference
Destructive interference
___________ _________ is a combination of waves that results in a larger overall
wave. - CORRECT ANSWER-Constructive interference