ARDMS- SPI.docx

The horizontal axis, or x-axis - correct answer Runs side to side The vertical axis, or y-axis - correct answer Runs up and down Unrelated - correct answer Two items that are not associated Related or Proportional - correct answer Two items that are associated or affiliated However, the relationship between the items does not have to be specified Directly related or Directly proportional - correct answer Two items that are associated such that when one item increases, the other increases Inversely related or inversely proportional - correct answer Two items are associated such that when one item increases, the other decreases Reciprocal Relationship - correct answer When two numbers with a reciprocal relationship are multiplied together, the result is one Reciprocal numbers are inverse because when one increases, the other decreases For a numerical answer to a question to be comprehensive, it requires a - correct answer Unit "Increase by a factor" means - correct answer To multiply by that number "Decrease by a factor" means - correct answer To divide by that number Scientific or engineering notation is a shorthand manner to represent what types of numbers? - correct answer Very large or very small numbers A number in scientific notation form with a positive exponent has a value - correct answer Greater than 10 A number in scientific notation form with an exponent of zero has a value - correct answer Between 1 and 10 A number in scientific notation form with a negative exponent has a value - correct answer Less than 1 10⌃9 - correct answer Prefix: giga Symbol: G Meaning: billion 10⌃6 - correct answer Prefix: mega Symbol: M Meaning: million 10⌃3 - correct answer Prefix: kilo Symbol: k Meaning: thousand 10⌃2 - correct answer Prefix: hecto Symbol: h Meaning: hundred 10⌃1 - correct answer Prefix: deca Symbol: da Meaning: ten 10⌃-1 - correct answer Prefix: deci Symbol: d Meaning: tenth 10⌃-2 - correct answer Prefix: centi Symbol: c Meaning: hundredth 10⌃-3 - correct answer Prefix: milli Symbol: m Meaning: thousandth 10^-6 - correct answer Prefix: micro Symbol: μ Meaning: millionth 10^-9 - correct answer Prefix: nano Symbol: n Meaning: billionth List all these metric terms in increasing order: A. mega B. micro C. milli D. hecto E. deca F. deci - correct answer micro, milli, deci, deca, hecto, mega List all these metric terms in decreasing order: A. nano B. canti C. giga D. kilo E. hecto F. micro - correct answer giga, kilo,hecto, centi, micro, nano Sound pulses travel through biologic tissue, or ______. - correct answer Media 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 Sound cannot travel through a ______; it must travel through a ______. - correct answer Vacuum, medium What does compressed mean? - correct answer Squeezed together What does rarefied mean? - correct answer Stretched apart Sound travels in a ________ line. - correct answer Straight Sound waves are ____________ waves. - correct answer Longitudinal What is the propagation speed dependent on? - correct answer The medium Are there any biologic effects on tissue? - correct answer No Sound waves are identified by - correct answer Oscillations in acoustic variables What are the three acoustic variables? (With their units) - correct answer pressure - pascals (Pa), density - kg/cm^3, distance - cm, mm If something other than pressure, density, or distance (particle motion) rhythmically oscillates in a wave, then the wave... - correct answer Is not a sound wave Sound waves are also known as - correct answer Acoustic waves What are the seven Acoustic Parameters? - correct answer Period, frequency, amplitude, power, intensity, wavelength, propagation speed Particles move in a direction that is perpendicular to the direction that the wave propagates in what wave? - correct answer Transverse wave Particles move in the same direction that the wave propagates in a ____________ wave. - correct answer Longitudinal When are a pair of waves considered in-phase? - correct answer When their peaks and troughs occur at the same time and at the same location Considered "in step" What happens when two waves are out-of-phase? - correct answer Their peaks occur at different times, and so do their troughs