14 terms

Nature of Sound Chapter 2 sec 1-2

STUDY
PLAY
vibration
back-and-forth motion of an object
sound wave
A longitudinal wave that is caused by vibrations and that travels through a material medium.
longitudinal wave
made of compressions and rarefactions. - like a SLINKY
medium
is any substance that a wave can travel
through
tinnitus
ringing in the ears, a common type of hearing loss
intensity
loudness of sounds
pitch
how high or low the sound
seems to be
frequency
wave is the number of compressions or rarefactions
produced in a certain amount of time
ultrasonic
Sounds with frequencies too high for people to hear
doppler effect
a change in the pitch of a
sound you hear that is caused by motion - like a police car siren as it passes you
loudness
a measure of how well the
sound can be heard
amplitude
a measure of how far particles move when the wave
passes them
decibel
unit to measure loudness.
oscilloscope
a device that can produce graphs to
represent sound waves