Sound Waves Flashcards
High frequency means…
High pitch
Low frequency means…
Low pitch
High amplitude means…
High volume (sound)
Low amplitude means…
Low volume (sound)
Resonance
When the matching vibration of another object increases the amplitude
Doppler Effect
Change in pitch (frequency)
-An aparent change in frequency of a sound caused by the motion of a source or observer
-If frequency increases, wavelength decreases
Shock wave
A lot of pressure, high pressure = high volume
Sonic cone
When something travels faster than the speed of sound
Sonic math
Mach Number: how fast something is going of an object to the speed of sound
Mach # = V(object)/V(sound)
V(sound)=330-350
d = (v)(t)
distance (sound moving) = speed (340) (t)
Reflection
An echo, absorbed by surface
Refraction
When different parts of the wavefront travels at different speeds (and medium)
Interference
When two waves occupy the same space at the same time (identical)
Diffraction
The bending of waves around the barrier
