sound Flashcards
1
Q
what is a wave?
A
a wave is an oscillation or vibration that transfers energy
2
Q
amplitude
A
distance from middle to the top or bottom of the wave
3
Q
frequency
A
how many waves go past a particular point in a second, measured in hertz (hz)
4
Q
what are sound waves?
A
sound is produced by vibrations, which makes air molecules oscillate, sound is a longitudinal wave
5
Q
what is the equation for the speed of sound?
A
speed = distance (m)/ time (s)
6
Q
what is an ultrasound?
A
a procedure that uses high-frequency sound waves to create an image of part of the inside of the body
7
Q
what are the uses of an ultrasound?
A
to monitor the growth and development of the fetus
