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Sound 2014

QuestionAnswer
Some ways to change the pitch on a guitar from low to high would be to shorten the string, tighten the string, or use a thinner string.
On a wind instrument, the longer the vibrating column of air, the _____ the pitch. higher the pitch.
What is a percussion instrument? An instrument that you generate sound from by striking, rubbing, or shaking a surface.
Sound cannot travel through a _____. Vacuum
Pitch is caused by the number of _________ in a given period of time. vibrations
The _______ of the vibrations of an object determines how high or low the sound is. frequency
The longer the wavelength, the _____ the pitch. lower
Amplitude is the measure of __________. The amount of energy in the wave.
Loudness is measured in units called ______. decibels
The source of all sound is ________. movement or vibrations
Sound travels as a ________ wave. compression
Sound is ____________. A source of energy produced and tansmitted by vibrating matter.
The high point on a sound wave (or any wave) is called the _____. crest
The low point on a sound wave or any wave is called the _______. trough
The part of the wave where the particles are the most spread out is known as a _____. rarefaction
The part of the wave where the particles are closest together is called a_____. compression
When bottles of water are taped by a mallet, the bottle with the greatest amount of water has the highest or lowest pitch? the lowest because it has a long column of water to vibrate.
When bottles of water are blown across, the bottle with the greatest amount of water has the (highest or lowest) pitch. highest because is has a shorter column of air to vibrate
Sound cannot travel in a ____ because it must have ____ to travel through. vacuum, matter
Sound travels fastest in which state of matter? solid
Echolocation is used for _____. Echolocation is used for an animal to locate its prey.
Sonar is used to _______. send out sound waves to locate objects in the water and map the floor of bodies of water.
The frequency of sound is measured in units called _____. hertz
Created by: Callaway 5th