SONOGRAPHY CANADA PHYSICS CORE QUESTIONS WITH COMPLETE SOLUTIONS

what is media/medium correct answer: biological tissue what do all waves carry from one location to another correct answer: energy sound is a ____________ wave in which particles in the medium move correct answer: mechanical where can sound not travel correct answer: in a vacuum are sound waves transverse or longitudinal waves correct answer: longitudinal the effects of the medium upon the sound wave correct answer: acoustic propagation properties what are used to distinguish between sound waves and other types of waves correct answer: acoustic variables- pressure, density, and distance (measure of a particle motion) what are the 3 acoustic variables correct answer: pressure, density and distance concentration of force in an area correct answer: pressure what is pressure measured in correct answer: pascals (Pa) concentration of mass in a volume correct answer: density what is volume measured in correct answer: kg/cm^3 (cubic) what describes a sound waves features correct answer: acoustic parameters what are the 7 acoustic parameters correct answer: period, frequency, amplitude, power, intensity, wavelength, propagation speed how do particles move in soundwaves correct answer: longitudinally- particles move in the same direction that the wave propagates (parallel) in-phase wave correct answer: when their peaks and troughs occur at the same time out of phase wave correct answer: peaks and troughs occur at difference times -either inverted or out of step what occurs when waves lose their individual characteristics and combine to form a single wave correct answer: interference what combination of waves results in the formation of a single wave of greater amplitude of either components correct answer: constructive interference what kind of wave causes the formation of a single wave of lesser amplitude causing what types of interference correct answer: out of phase destructive interference what occures when 2 out of phase waves of equal amplitude interfere correct answer: complete destructive interference what types of waves (phase) occur with complete destructive interference correct answer: out of phase waves what causes waves to be momentarily in phase and out of phase (causing constructive and destructive interference) correct answer: waves of difference frequencies what type of waves of difference frequencies result in (type of interference) correct answer: constructive and destructive what direction of the graph is verticle vs horozontal correct answer: y=vertical x=horozonatal what is a reciprocal correct answer: when the 2 numbers are multiplied together to = 1 (10 x 1/10) tracy gets made king huge dense dummy cause millions (of) micro nuisances pileup correct answer: tera (10^12) giga (10^9) mega (10^6) kilo (10^3) hecto (10^2) deca (10^1) deci (-1)