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Science Ch5L2
PVA6th Grade 020421
| Question | Answer |
|---|---|
| Waves are disturbances that transfer ______ form one point to another. | energy |
| Waves that travel through a medium and cause matter to move up and down are called _________ waves. | transverse |
| Waves that cause matter to move back and forth are called _____ waves. | compressional |
| A wave has a high point called a ____ and a low point called a ______. | high-crest low-trough |
| The distance between wave crests or troughs is called ______. | wavelength |
| The number of wave crests that pass a point in one unit of time is a wave's _______. | frequency |
| A sound wave is a _____ wave produced by vibrations in matter. | compressional |
| Sound waves travel at different ________ in different materials. | speeds |
| Sound wave more FASTEST through ______, SLOWER through _______, and SLOWEST through _______. | fastest-solids slower-liquids slowest- gases |
| The highness or lowness, or the _____ of a sound depends on the frequency of the sound waves. | pitch |
| The pitch of a sound changes when the source or the listener is in motion because of the ____. | Doppler effect |
| The motion of two or more waves passes through the same medium at the same time is called _______. | interference |
| Guitars and violins are examples of ___ instruments. | stringed |
| We hear sounds because sound waves strike our ____ and cause them to vibrate. | ear drums |
| A pleasant combination of sounds is called ____ and an unpleasant combination of sounds is called ______. | pleasant- "MUSIC" unpleasant- "NOISE" |
| How does sound travel from a piano to make music? | A piano makes its sound by striking metal strings w/ hammers to make them vibrate.When a key is pressed, a hammer hits a certain sting and bounce off, causing the strings to vibrate causing sound waves that travel to our ears and make our eardrums vibrate |
| a disturbance that transfers energy from one point to another | wave |
| a measure of how many wave crests or troughs pass a given point in one unit of time | frequency |
| when the pitch of a sound changes because the source or listener is in motion | Doppler effect |
| the amount of time it takes for a wave to complete one cull cycle | period |
| the distance between wave crests and troughs | wavelength |
| an area in a sound wave where particles of matter spread apart | rarefaction |
| an area in a sound wave where particles of matter are pushed together | compression |
| the height of a wave from its trough or crest to its midpoint, which is also a measure of the wave's intensity | amplitude |
| how waves bounce off an object and change their direction of travel | reflection |
| Sound waves cause the particles making up a ___ to squeeze together and then ____. | medium spread apart |
| The places in a sound wave where the particles are close together are called ____. | compressions |
| The places where the particles are spread apart are called ___. | rarefactions |
| Sound waves have a _____, w which is the distance from one crest, or point of greatest compression, to the next. | wavelength |
| Sound waves also have a ____, which is the number of compressions that pass a point in one second. | frequency |
| The frequency of a sound wave determines its ____. | pitch |
| The amplitude of a sound wave is a measure of the wave's _______. | intensity |
Created by:
EmmaKate09