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Sound Study Guide

TermDefinition
water Sound travels better in ___ than in air.
vacuum Sound cannot travel in a ___ (outer space).
True True or false: Sound travels faster along a solid instead of a liquid because the matter is denser.
echolocation Sounds animals use to help them locate objects, such as bats and dolphins. These sounds cannot be heard by humans because of the high frequencies animals use.
crest highest point of a sound wave
trough lowest point of a sound wave
the distance from crest to crest How are wavelengths measured?
vibrations back and forth movements of matter
frequency the number of a times a sound source vibrates in one second
lower the lower the frequency, the ___ the pitch.
softer the further away you are from the sound source, the ___ the sound becomes.
shortest On stringed instruments, the highest frequencies are made by the ___ strings.
longest On stringed instruments, the lowest frequencies are made by the ___ strings.
speed of sound The ____ through a solid, liquid, or gas depends on how close the molecules are to each other in the material.
Created by: Vigilrs