SOUND Flashcards
What do waves carry from on location to another?
Energy
True or False, Light, sound, heat and magnetic are ALL forms of waves?
True
Can sound travel through a vacuum?
No
What does the word compressed mean?
squeezed together
What does the term rarefied mean?
Stretched apart
True or False, sound travels in a curved line?
False, sound travels in a straight line.
True or False, Sound waves are transverse waves?
False, sound waves are longitudinal waves.
What are the effects of the sound waves when passing through tissues?
Biological effects
What is another term for sound waves
Acoustic waves
What are three acoustic variables?
Distance, Pressure, and density
What are the 7 acoustic parameters used to describe characteristics of a wave.
Period
Frequency
propagation speed
amplitude
wavelength
intensity
power
What are the units for pressure?
Pascals
What is the term for concentration of mass in a volume?
Density
What are the units for distance?
Cm, miles, feet,mm.
What is the term for concentration of force in an area?
Pressure
What is the term for a measure in particle motion?
Distance
What are the units for density?
kg/cm3
How do particles move in a transverse wave?
Perpendicular to the direction the wave transmits
What is another word for transmit?
Propagate
How do particles move in a longitudinal wave?
In the same direction, the wave propagates.
What kind of paired waves have their peaks occur at the same time and location?
In-phase waves
What kind of paired waves have their maximum peaks and minimum peaks occur at different times?
Out-of-phase waves
What is another name for the in-phase waves?
In Step
What is another name for out-of-phase waves?
Out of step