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PS 06 Sound Waves
8th Grade 2022
| Question | Answer |
|---|---|
| The regions of spread out matter in a longitudinal or compression wave? | Rarefaction |
| How high or low a sound is. | Pitch |
| The pitch of sound is determined by the frequency. Measured in _____ | Hertz |
| This property of sound is determined by the amplitude (energy of a wave) and is measured in decibels. | Loudness |
| The use of reflected sound by animals to find objects. | Echolocation |
| The matter that a wave travels through. (Sound MUST travel through this) | Medium |
| The regions of densest matter in a longitudinal or compression wave? | Compression |
| Echolocation used to locate objects underwater. | Sonar |
| The use of high frequency sound waves to produce images inside the body. | Ultrasound |
| The vibration of an object at its natural frequency. (Bridges, Instruments, Buildings, etc..) | Resonance |
| A change in the pitch when a sound passes an object. | Doppler Effect |
| Type of wave interference that produces stronger and louder sounds. | Constructive |
| Type of wave interference that produces sounds that cancel each other out. | Destructive |
| As a wavelength gets longer, the frequency ____. | Decreases |
| As a wavelength gets shorter, the frequency ____. | Increases |
| A ___ is a disturbance that transfers energy from one place to another. | Wave |
| Sound moves fastest through a ____ medium. | Solid |
| Sound moves slowest through a ____ medium. | Gas |
| If a medium is _____, sound will move through it faster. (temperature) | Warmer |
| Because of the Doppler Effect, sound's pitch becomes ____ as objects move closer to you. | higher |
| Because of the Doppler Effect, sound's pitch becomes ____ as objects move farther from you. | lower |
| If you increase the amplitude of a sound wave, the sound will become ___. | louder |
| If you decrease the amplitude of a sound wave, the sound will become ___. | quieter |
| If you increase the frequency of a sound wave, the sound will become ___. | higher pitch |
| If you decrease the frequency of a sound wave, the sound will become ___. | lower pitch |
| If a medium is _____, sound will move through it slower. (temperature) | Colder |
| Sound cannot travel through a ____. | Vacuum (empty space) |
| The number of waves per second. | Frequency |
| How wide a wave is. Measured as a full compression and rarefaction. | Wavelength |
| One of the two factors that affect the speed of sound | Temperature |
| One of the two factors that affect the speed of sound | The Medium's Composition |
Created by:
Mr. Dornfeld
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