Sound Waves Flashcards
1
Q
Define sound wave
A
Sound is a vibration that moves as a wave of pressure and displacement, through a medium
2
Q
Define compression
A
When the sound waves are closer together
3
Q
Define rarefaction
A
When the waves are further apart
4
Q
What is amplitude of a sound wave?
A
The volume
5
Q
What is frequency of a sound wave?
A
The pitch
6
Q
What is wavelength of a sound wave?
A
The pitch
7
Q
What is the formula for determining the speed of sound?
A
Sp = d/t
Speed = distance / time
8
Q
Define ultrasound
A
A sound at a very high pitch (greater than 20 000 hz)
9
Q
Define echo
A
Reflection of sound that arrives at the listener with a delay
