properties of sound
characteristics of sound
Uses of sound
communicating with sound
More on sound
100

A rapid back and forth movement

What is vibration?

100

sound travels through this

What is matter?

100

a sound wave that bounces back to its source

What is an echo?

100

singing and speaking are alike in this way

What are vibrations inside the larynx?

100

the number of waves that pass a point in one second

What is frequency?

200

a vibration that can be heard

What is sound?

200

how high or low a sound is related to its frequency

What is pitch?

200

the type of echolocation used to find things under water

What is SONAR?

200

a harsh unwanted sound

What is a noise?

200
it is true that most sounds we hear are a blend of several waves

What is true?

300

a disturbance that moves energy from place to place

What is a wave?

300

related to its frequency

What is pitch?

300

echos of high frequency waves used to see inside animals

What is an ultrasound?

300

types of messages the ear transmits once sound hits it

What are electrical messages?

300
instruments played at the same pitch sound different due to this 

What is timbre?

400

the distance from one compression to the next

What is a wavelength?
400

measurement of sound intensity

What is a decibel?

400

this machine turns sound waves into electrical pictures

What is an oscilloscope?

400

the science of sound

What is acoustics?

400

sound moves the slowest through this 

What are gases?

500

measurement of sound frequency

What is the hertz?

500

distinguishes a sound from other sounds

What is timbre?

500

sound waves that travel through matter

What are mechanical waves?

500

sounds reflect off of these surfaces

What are smooth and hard surfaces?

500

This happen as a sound waves as their energy gets used up

What is get quieter?

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