Ultrasound Flashcards
1
Q
what is ultrasound?
A
ultrasound is sound at a frequency beyond human hearing.
2
Q
what is the maximum frequency a human can hear.
A
20,000Hz (Hz=frequency)
3
Q
what can ultrasound be used for?
A
1.communication
2.echolocation
3.scanning unborn babies in the womb
4
Q
what can happen to human hearing as they get older?
A
as humans get older their hearing gets worse.
