8th Unit 3 Word Scramble
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| Term | Definition |
| Acoustics | The science of sound: Study of the interaction between sound waves and objects |
| Amplification | Producing sounds that have more intensity than where they were originally produced |
| Compression | Moving molecules closer together as in a gas |
| Compression wave (longitudinal wave) | A wave produced where molecules are pushed closer together and then rebound to their normal position |
| Crest | The highest point of a transverse wave |
| Density | The ratio of mass versus volume: D= m/V |
| Doppler Effect | When sound waves of an object moving relative to the observer take on a different frequency than if they were stationary. |
| Frequency | The number of waves that pass a given point in a given amount of time. |
| Inner ear | Inner most part of the ear that contains the cochlea and nerve endings |
| Intensity | The loudness of sound |
| Mach I | An object reaches this point when it breaks the sound barrier |
| Medium | A substance that sound can travel through |
| Middle ear | The part of the ear that contains the ossicles (ear bones) |
| Outer ear | The part of the ear that receives sound input from the outside world |
| P wave | Primary compression wave that occurs during an earthquake |
| Pitch | The high or low effect of sound based on frequency |
| Rarefaction | The decompression of a compression wave |
| S wave | The transverse wave associated with an Earthquake |
| Seismograph | An instrument that records seismic waves |
| Sonic Boom | The release of a massive sound wave that occurs when an object breaks the sound barrier |
| Sound barrier | The point at which an object exceeds the speed of sound |
| Sound wave | A compression wave that carries energy to a natural or artificial device that can detect pressure changes |
| Speed of sound | 343.2 meters per second or 1,126 ft/s. This is equivalent to 1,236 kilometers per hour or 768 mph |
| Supersonic | An object that can break the sound barrier |
| Tinnitus | Ringing or hissing in the ear as a result of listening to high frequency or high intensity sounds |
| Trough | The lowest part of a transverse wave |
| Transverse wave | A wave that moves energy in one direction but travels in a path that oscillates up and down in equal directions |
| Wavelength | The distance between two crests in a transverse wave or the distance between the compressions of a compression wave. |
| Angle of incidence | The angle at which light hits a reflective surface |
| Angle of reflection | The angle at which light leaves a reflective surface |
| Diffraction | The apparent bending of waves around small obstacles and the spreading out of waves past small openings |
| Electromagnetic radiation | Energy that moves as both a particle and a wave that can travel through any medium |
| Electromagnetic spectrum | The range of all possible wavelengths of electromagnetic radiation |
| Fiber optics | Optical fibers that can carry light over long distances that are used in communication and data transfer |
| LASER | Light Amplification by Stimulated Emission of Radiation |
| Lens | An optical device which transmits and refracts light, converging or diverging the beam. |
| Mirror | A substance that can reflect light efficiently |
| Photon | A bundle of light energy that moves as both a particle and a wave |
| Primary colors | Colors that can be added or subtracted from one another to create other colors. Red, Blue, Green, Cyan, Magenta and Yellow. |
| Prism | A substance that can refract white light separating it into its colored components |
| Reflection | The change in direction of a wave from the surface of a reflective material. |
| Refraction | The bending of a wave when it enters a medium where it's speed changes due to differences in density. |
| Speed of light | The speed at which light travels in a vacuum. (3.00 x 108 m/s) |
| Wave particle duality | Explains the wave and particle characteristics that light exhibits. |
| Decibel | Unit of sound intensity |
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darrin_evans
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