Longitudinal Waves Flashcards
1
Q
Longitudinal wave
A
A wave in which the disturbance is parallel to the direction of propogation
2
Q
Sound
A
Vibration of air particles
3
Q
Compression
A
When sound waves come closer together
4
Q
Rarefaction
A
Sound waves move further apart
5
Q
Ultrasound
A
Waves that have higher frequencies that are not audible by humans
6
Q
What determines how fast sound travels
A
The density of the medium
7
Q
Echo
A
Sound wave reflects off solid surface. Can only be distinguished if there is more than a 0.1 second delay between the sound and reflection otherwise ears detect one sound
