Term
| acoustic propagation properties |
|
Definition
| effecet of the medium upon the sound wave |
|
|
Term
|
Definition
| effect of the sound wave upon the biologic tissue through which it passes |
|
|
Term
| sound travels in a __________line? |
|
Definition
|
|
Term
| sound waves are ________________waves. |
|
Definition
|
|
Term
| three acoustic variables are _______? |
|
Definition
| pressure, density, distance |
|
|
Term
|
Definition
| concentration of force in and area |
|
|
Term
|
Definition
| concentration of mass in a volume |
|
|
Term
|
Definition
| measure of particle motion |
|
|
Term
|
Definition
| particles move in the same direction that the wave propagates |
|
|
Term
|
Definition
| particles move in a perpendicular direction that the wave propagates |
|
|
Term
|
Definition
| when peaks and troughs occur at the same time and same location |
|
|
Term
|
Definition
| peaks and troughs occur at different times and locations |
|
|
Term
|
Definition
| multiple waves combine at a particular point at same time and lose their individual characteristics |
|
|
Term
| constructive interference |
|
Definition
| in-phase waves interference where the resulting wave has greater amplitude than either of its components |
|
|
Term
|
Definition
| out-of-phase interference forming a single wave of lesser amplitude than either of its components. |
|
|
Term
| what do waves transfer from one location to another? |
|
Definition
|
|
Term
| sound waves are a series of _____? |
|
Definition
| compressions and rarefactions |
|
|
Term
| which of the following terms does not belong with the others: compression, density, pressure, or spacing |
|
Definition
|
|
Term
| variations in all of the following identify specific waves as acoustic waves EXCEPT: pressure, parameters, density, acousitc variables |
|
Definition
|
|
Term
| all of the following are true of sound EXCEPT: they are acoustic, they are pressure waves, they are tranverse, the move energy |
|
Definition
|
|
Term
| what type of waves will exhibit both consstructive and destructive interference? |
|
Definition
| waves of different frequency |
|
|
Term
| two waves travel in a medium and arrive at a location at the same time. what event takes place? |
|
Definition
|
|
Term
| multiple wave beams arrive at an identical location at exactly the same time to combine and form a single wave. this combination is called _______? |
|
Definition
|
|
Term
| which types of waves will exhibit both constructive and destructive interference? |
|
Definition
| waves of different frequency |
|
|
Term
| what are the units used to describe pressure? |
|
Definition
|
|
Term
| what are the units used to describe density? |
|
Definition
|
|
Term
| what are the units used to describe distance? |
|
Definition
| cm, feet, mile, kilometers, in, yards |
|
|
