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Sound Unit 4th

Sound Unit Study Guide

The vibration that you can hear Sound
The area where air is pushed together is called compression
Sound waves move out in what from a vibrating object all directions
The farther you are from the source of a sound, the what the sound will be softer
The greatest distance that the water rises from tits rest position is called what? Amplitude
What is the distance in a straight line from one place on a ripple to the same place on the next ripple? Wave Length
The peaks and valleys of a wave stand for the areas of what and what pressure in a sound wave. High and Low
The amplitude or tallness of a wave stands for the what of a sound. loudness
What is a measure of the amount of sound energy reaching your ears Loudness
A sound's what is a measure of how high or low it is pitch
The faster the vibrations the what the pitch higher
Pitch is related to what wavelength
The longer the wavelength the what the sound you hear lower
Two ways you can change the pitch of vibrating object is to change the what or the what of the object length or the thickness
The speed at which sound wave travels is called what? Speed of Sound
Sound travels through all three states of matter, but travels the fastest through which state? Solid
A sound reflection is called what? Echo
To get a clear echo, the sound waves need to bounce off of a what what surface? Smooth, Flat
When a plane is flying faster than the speed of sound, all of the sound waves are pushed together into one strong wave called what shock wave
The sound from this wave is loud "boom-boom" and is called a what? Sonic Boom
Created by: jgrindle