sound vocab Flashcards
Echo
reflected sounds that return to you
fundemental
slowest vibration, lowest pitch
Intensity
actual measurement of loudness (sound energy)
Intensity level
comparisons of sound energy measured in dB
Loudness
perception of the rate of sound energy. Not an actual measurement
Harmonics
possible modes of vibrations
music
combination of sounds that are pleasing to hear
noise
bothersome, harsh, unappealing sounds
noise pollution
excess of unwanted sounds
doppler effect
pitch is higher toward observer; pitch is lower away from observer
overtone
whole number multiple of fundamental frequency
closed pipe
tube open, and sealed at one end
SPEED OF SOUND
340 mis at 20 degrees
open pipe
tube not sealed on either end
Pitch
quality that describes highness or lowness of sound
sonar
sound navigation and ranging
sound wave
longitudinal wave produced by vibration
REFRACTION
change in temperature, affects speed and direction
ultra sonic
sound waves above 20,000 Hz
sonic boom
energy heard from shock wave
vibration
back and forth movement of matter.
Resonance
The response of a body when a forcing frequency matches its natural frequency
Diffraction of Sound
Bending of sound waves around obstacles
