Table of Contents The Nature of Sound Properties of Sound Music How You Hear Sound Using Sound - The Nature of Sound Sound Waves Sound is a disturbance that travels through a medium as a longitudinal wave. As a gong vibrates, it creates sound waves that travel through the air.
Does the speed of sound increase or decrease as temperature increases?
- The Nature of SoundTemperature and the Speed of Sound
Sound waves interact with objects and with other sound waves.
Reflection occurs when sound waves strike a surface.
Sound waves can diffract around corners and through openings.
The interference of sound waves can be constructive or destructive.
Properties of Sound
Q. How is pitch changed in each type of instrument?
A. By changing the frequency of the vibrations
Q. How is the loudness changed in each type of instrument?
A. By changing the energy of the vibrations
How You Hear Sound
The outer ear funnels sound waves into the ear canal.
Sound waves make the eardrum vibrate.
Tiny bones in the middle ear transmit vibrations to the inner ear.
Vibrations in the cochlea of the inner ear send messages to the brain.
Type of wave
Find water depth, sunken objects,
schools of fish
Navigate, find food
speed depends on
is heard as
is heard as