Chapter 2 Flashcards
(16 cards)
What kind of waves are sound waves?
Longitudinal
What is the unit for pressure?
Pascals (Pa)
What is the unit for density?
kg/cm^3
What is the unit for the measure of particle motion?
cm, m
What are the 7 Acoustic Parameters?
Period, Frequency, Amplitude, Power, Intensity, Wavelength, Propagation Speed
Which direction do particles move in a transverse wave?
Perpendicular to the direction of propagation
Which direction do particles move in a Longitudinal wave?
In the same direction as propagation
What type of wave is a sound wave?
Longitudinal
Multiple beams that arrive at the same location at the same time combine to form ___________.
Interference
What happens when In-phase waves combine?
- Constructive Interference
- Single wave with greater amplitude
What happens when Out-of-phase waves combine?
Destructive Interference
What happens when waves of different frequencies combine?
Constructive AND destructive interference
What do waves transfer from one location to another?
Energy
What is the best description for a sound wave?
A series of compressions and rarefactions
Which wave parameter is heard as pitch?
Frequency
Which wave parameter is heard as loudness?
Amplitude, Power, and Intensity
