Sound Flashcards
1
Q
What does sound travel as?
A
Waves
2
Q
Why can’t sound travel in a vacuum?
A
There is nothing for the waves to bounce off of
3
Q
The higher the frequency…
A
the higher the pitch
4
Q
The higher the amplitude…
A
the louder the sound
5
Q
What is the human hearing range?
A
20-20000Hz
6
Q
What is ultrasound?
A
Sound above 20000Hz
7
Q
Where can ultrasound be used?
A
Pre-natal scanning
Detecting flaws and cracks
Cleaning delicate objects
