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PVES Week 10

Sound

QuestionAnswer
Sound waves are _________________ waves compression
The rapid back and forth movements that create sound are_____ vibration
The number of wavelengths in a given unit of time is _________. frequency
The ability of sound to cause vibrations is called _________. sound energy
A surge of sound energy that travels through matter is ________. sound wave
Sound travels best through which state of matter? solids
Sounds travels least well through which state of matter? gases
What is the process of making sound louder called? amplification
What is the highness or lowness of a sound called? pitch
What determines the loudness of a sound? amplitude
What determines the pitch of sound? frequency
The unit used to measure the loudness of sound is called _______. decibel
What is the height of a sound wave? amplitude
Sound makes waves by pushing molecules together (_____) or spreading them out (______) compression rarefaction
Sound travels best through materials with a ______ density. high
High density means molecules are _______________ close togehter
What echolocation system is used to help some animals locate food? sonar
What are two animals that use sonar to locate food? bats and whales
The distance between a point on one wave to the same point on the next wave is called __________. wavelength
Sound cannot travel in a ________ because their is no matter for it to move through. vacuum
Objects vibrating faster have higher ______ than objects vibrating slower. pitch
____________ is the amount of energy in a compression wave. amplitude
Created by: pves
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