Update) Questions and Verified Answers|
100% Correct| Grade A
Q: What does rarefied mean?
Answer:
Stretched apart
Q: Sound travels in a line.
Answer:
Straight
Q: Sound waves are __<\/em><\/strong> waves.
Answer:
Longitudinal
Q: What is the propagation speed dependent on?
Answer:
The medium
Q: Are there any biologic effects on tissue?
Answer:
No<\/p>\n\n\n\n
Q: Sound waves are identified by
Answer:
Oscillations in acoustic variables
Q: What are the three acoustic variables? (With their units)
Answer:
pressure – pascals (Pa), density – kg\/cm^3, distance – cm, mm
Q: If something other than pressure, density, or distance (particle motion) rhythmically
oscillates in a wave, then the wave\u2026
Answer:
Is not a sound wave
Q: Sound waves are also known as
Answer:
Acoustic waves
Q: What are the seven Acoustic Parameters?
Answer:
Period, frequency, amplitude, power, intensity, wavelength, propagation speed<\/p>\n\n\n\n
Q: Particles move in a direction that is perpendicular to the direction that the wave propagates Q: The interference of in-phase waves results in a single wave of amplitude. This is Sound pulses created by a transducer travel through biologic tissue called…<\/a><\/p>\n\n\n\n media<\/a><\/p>\n\n\n\n All sound waves carry what from one location to another?<\/a><\/p>\n\n\n\n energy<\/a><\/p>\n\n\n\n Different forms of waves include…<\/a><\/p>\n\n\n\n heat, sound, magnetic, and light<\/a><\/p>\n\n\n\n Sound is a __________ wave in which particles in the medium move.<\/a><\/p>\n\n\n\n mechanical<\/a><\/p>\n\n\n\n molecules are alternately ___ and ____.<\/a><\/p>\n\n\n\n compressed (squeezed together) and rarefied (stretched apart).<\/a><\/p>\n\n\n\n sound travels in a straight or wavy line?<\/a><\/p>\n\n\n\n straight line<\/a><\/p>\n\n\n\n Are sound waves longitudinal or transverse?<\/a><\/p>\n\n\n\n Sound waves are longitudinal<\/a><\/p>\n\n\n\n Acoustic propagation properties<\/a><\/p>\n\n\n\n the effects of the medium upon the sound wave<\/a><\/p>\n\n\n\n biologic effects<\/a><\/p>\n\n\n\n the effects of the sound wave upon the biologic tissue through which it passes<\/a><\/p>\n\n\n\n Sound waves are identified by __________.<\/a><\/p>\n\n\n\n oscillations in acoustic variables.<\/a><\/p>\n\n\n\n Three acoustic variables are<\/a><\/p>\n\n\n\n pressure, density, (distance)particle motion<\/a><\/p>\n\n\n\n the acoustic variables are used to distinguish between…..<\/a><\/p>\n\n\n\n sound waves and other types of waves.<\/a><\/p>\n\n\n\n If something other than pressure, density, or distance (particle motion) rhythmically oscillates in a wave, then the wave is _____.<\/a><\/p>\n\n\n\n not a sound wave.<\/a><\/p>\n\n\n\n Sound waves are also known as…<\/a><\/p>\n\n\n\n acoustic waves<\/a><\/p>\n\n\n\n acoustic variable: pressure<\/a><\/p>\n\n\n\n concentration of force in an area<\/a><\/p>\n\n\n\n units of acoustic variable pressure<\/a><\/p>\n\n\n\n pascals (Pa)<\/a><\/p>\n\n\n\n acoustic variable: density<\/a><\/p>\n\n\n\n concentration of mass in a volume<\/a><\/p>\n\n\n\n units of acoustic variable density<\/a><\/p>\n\n\n\n kg\/cm3<\/a><\/p>\n\n\n\n acoustic variable: distance<\/a><\/p>\n\n\n\n measure of particle motion<\/a><\/p>\n\n\n\n units of acoustic variable distance<\/a><\/p>\n\n\n\n cm, feet, mile<\/a><\/p>\n\n\n\n acoustic parameters are used to…<\/a><\/p>\n\n\n\n Accurately describe the characteristics of a sound wave<\/a><\/p>\n\n\n\n seven acoustic parameters include…<\/a><\/p>\n\n\n\n period, frequency, amplitude, power, intensity, wavelength, propagation speed<\/a><\/p>\n\n\n\n in a transverse wave particles move…<\/a><\/p>\n\n\n\n in a direction that is perpendicular to the direction that the wave propagates.<\/a><\/p>\n\n\n\n holding the end of a string and shaking it up and down creates a ____ ____ although the string moves up and down the energy from the ossillations moves in a perpendicular direction and away from your hand<\/a><\/p>\n\n\n\n transverse wave<\/a><\/p>\n\n\n\n longitudinal wave<\/a><\/p>\n\n\n\n a wave in which the particles of the medium vibrate parallel to the direction of wave motion. Particles move in the same direction that the wave propagates.<\/a><\/p>\n\n\n\n A pair of waves are considered _____ when their peaks (maximum values) occur at the same time and at the same location. Similarly the troughs of the waves (minimum values) occur at the same time.<\/a><\/p>\n\n\n\n in-phase<\/a><\/p>\n\n\n\n in-phase waves are _____ _____, just like the members of a synchronized marching band.<\/a><\/p>\n\n\n\n “in-step”<\/a><\/p>\n\n\n\n When two waves are _____ their peaks occur at different times, and so do their troughs.<\/a><\/p>\n\n\n\n out-of-phase<\/a><\/p>\n\n\n\n when more than one sound beam travels in a medium or multiple beams arrive at an identical location at exactly the same time its known as…<\/a><\/p>\n\n\n\n interference<\/a><\/p>\n\n\n\n in interference the waves lose their individual ______ and combine to form a _____ ____.<\/a><\/p>\n\n\n\n characteristics; single wave<\/a><\/p>\n\n\n\n True or False: Both in-phase and out-of-phase wave pairs undergo interference.<\/a><\/p>\n\n\n\n true, they both do<\/a><\/p>\n\n\n\n constructive interference<\/a><\/p>\n\n\n\n The interference that occurs when two waves combine to make a wave with a larger amplitude. The formation of a single wave of greater amplitude than either of its components.<\/a><\/p>\n\n\n\n destructive interference<\/a><\/p>\n\n\n\n The interference that occurs when two waves combine to make a wave with a smaller amplitude. The formation of a single wave of lesser amplitude than at least one of its components.<\/a><\/p>\n\n\n\n Constructive\/destructive interference<\/a><\/p>\n\n\n\n Where two waves are in phase and the interference is constructive, while at other moments, the waves are out of phase and the interference is destructive. (Frequencies of the waves differ)<\/a><\/p>\n\n\n\n what do waves transfer from one location to another?<\/a><\/p>\n\n\n\n energy<\/a><\/p>\n\n\n\n which of the following best describes sound waves? A. a series of compressions and rarefactions<\/a><\/p>\n\n\n\n which of the following terms does not belong with the others? D. wide molecular spacing<\/a><\/p>\n\n\n\n Variations in all of the following identify specific waves as acoustic waves EXCEPT- B. Parameters<\/a><\/p>\n\n\n\n all of the following are true of sound waves except: C. They are transverse.<\/a><\/p>\n\n\n\n all of the following are acoustic parameters except: A. Pressure<\/a><\/p>\n\n\n\n which of the following best describes sound waves? D. Longitudinal, pressure waves<\/a><\/p>\n\n\n\n Two waves are traveling in a medium and arrive at a location at the same time. What event takes place?<\/a><\/p>\n\n\n\n interference<\/a><\/p>\n\n\n\n Which types of waves will exhibit both constructive and destructive interference?<\/a><\/p>\n\n\n\n waves of different frequencies<\/a><\/p>\n\n\n\n what units are used to report the pressure of a sound beam?<\/a><\/p>\n\n\n\n pascals<\/a><\/p>\n\n\n\n True or False: Acoustic variables allow us to determine which waves are sound waves and which are not.<\/a><\/p>\n\n\n\n true<\/a><\/p>\n\n\n\n True or False? Acoustic parameters are used to describe the features of sound waves.<\/a><\/p>\n\n\n\n
in what wave?
Answer:
Transverse wave
Q: Particles move in the same direction that the wave propagates in a __<\/strong><\/em><\/strong> wave.
Answer:
Longitudinal
Q: When are a pair of waves considered in-phase?
Answer:
When their peaks and troughs occur at the same time and at the same location
Considered “in step”
Q: What happens when two waves are out-of-phase?
Answer:
Their peaks occur at different times, and so do their troughs
“out of step”
Q: What is interference?
Answer:
When more than one beam travels in a medium and arrive at the same location at exactly the
same time
These waves lose their individual characteristics and combine to form a single wave<\/p>\n\n\n\n
called __<\/em><\/strong><\/em><\/strong>.
Answer:
Greater, constructive interference
(Larger Wave)
Q: The interference of a pair of out-of-phase waves results in the formation of a single wave of
_ amplitude. This combination is called _____________<\/strong><\/em><\/strong>.
Answer:
Lesser, destructive interference
(Smaller Wave)
Q: When frequencies of waves differ, what kind of wave occurs?
Answer:
Both constructive and destructive interference
Q: What do waves transfer from one location to another?
Answer:
Energy
Q: Two waves are traveling in a medium and arrive at a location at the same time. What event
takes place?
Answer:
Interference
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A. a series of compressions and rarefactions
B. waves that are heard by man.
C. movement of molecules and energy from one location to another
D. waves that are used to make images of anatomy.<\/a><\/p>\n\n\n\n![\"Image:](\"https:\/\/quizlet.com\/cdn-cgi\/image\/f=auto,fit=cover,h=200,onerror=redirect,w=240\/https:\/\/o.quizlet.com\/xNoBITbnJCVHWLzI3i1-vQ.png\")
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A. compression
B. region of high density
C. region of high pressure
D. wide molecular spacing<\/a><\/p>\n\n\n\n
a) pressure
b) parameters
c) density
d) acoustic variables<\/a><\/p>\n\n\n\n
A. they are acoustic.
B. they are pressure waves.
C. they are transverse.
D. they move energy.<\/a><\/p>\n\n\n\n
A. pressure
B. period
C. propagation speed
D. frequency<\/a><\/p>\n\n\n\n
A. transverse, pressure waves
B. transverse, longitudinal waves
C. longitudinal, out-of-phase waves
D. longitudinal, pressure waves<\/a><\/p>\n\n\n\n