ultrasounds / gains of studying waves

ultrasound waves have a frequency higher than

human hearing range

the main thing about how ultrasound waves work is

they partially reflect when at a boundary between two different media

if you know the time taken between probe to item and back you can calculate

the distance between the two

this is done with the equation

distance (s) in meters = speed (v) in m/s x time(t) in seconds

it`s important to remember the equation calculates distance of there and back if you only want one way

divide by 2

ultrasounds medically are used to

scan organs not surrounded by bones/or foetuses

ultrasounds are safer than x ray as

they do not increase risk of cancer or mutations

ultrasound use industrially can be used to

detect flaws in pipes

you would know there’s a flaw if the ultrasound

reflects off the far side of the material faster than normal

what two things can you study in waves

their properties

their path through a structure

how is studying wave path and properties helpful

you can learn properties of the structure that may not be visible with the human eye