Ultrasound Flashcards
1
Q
How can ultrasound waves be produced
A
Electronic systems
2
Q
When are ultrasound waves partially reflected
A
When they meet a boundary between two different media
3
Q
What can the time taken for the reflections to reach detectors be used to do
A
Determine how far away such a boundary is
4
Q
What can ultrasound waves be used in
A
Medicine
5
Q
What is ultrasound
A
A frequency higher than the upper limit of hearing for humans
20 000 Hz
