properties of sound
A rapid back and forth movement
What is vibration?
sound travels through this
What is matter?
a sound wave that bounces back to its source
What is an echo?
singing and speaking are alike in this way
What are vibrations inside the larynx?
the number of waves that pass a point in one second
What is frequency?
a vibration that can be heard
What is sound?
how high or low a sound is related to its frequency
What is pitch?
the type of echolocation used to find things under water
What is SONAR?
a harsh unwanted sound
What is a noise?
What is true?
a disturbance that moves energy from place to place
What is a wave?
related to its frequency
What is pitch?
echos of high frequency waves used to see inside animals
What is an ultrasound?
types of messages the ear transmits once sound hits it
What are electrical messages?
What is timbre?
the distance from one compression to the next
measurement of sound intensity
What is a decibel?
this machine turns sound waves into electrical pictures
What is an oscilloscope?
the science of sound
What is acoustics?
sound moves the slowest through this
What are gases?
measurement of sound frequency
What is the hertz?
distinguishes a sound from other sounds
What is timbre?
sound waves that travel through matter
What are mechanical waves?
sounds reflect off of these surfaces
What are smooth and hard surfaces?
This happen as a sound waves as their energy gets used up
What is get quieter?