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MS10- Energy
| Term | Definition |
|---|---|
| waves | Waves are characterized by wavelength, frequency, and the speed at which they move. |
| mechanical waves | A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. |
| transverse wave | A wave that oscillates perpendicular to the axis along which the wave travels. |
| compressional wave | The medium moves froward and backward along the same direction. |
| electromagnetic waves | That can travel through space where there is no matter. |
| amplitude | Amplitude is the vertical distance between a peak or a valley and the equilibrium point. |
| wave length | the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. |
| frequency | the rate at which a vibration occurs that constitutes a wave, either in a material usually measured in per second. |
| reflection | the throwing back by a body or surface of light, heat, or sound without absorbing it. |
| refraction | change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front |
| diffraction | the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced. |
| interference | the combination of two or more electromagnetic wave forms to form a resultant wave in which the displacement is either reinforced or canceled. |
| loudness | Loudness is the characteristic of a sound that is primarily a psycho-physiological correlate of physical strength |
| pitch | the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone. |
| echo | a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener. |
| Doppler effect | an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other. |
| music | A group of sounds that have been deliberately produced to make a regular pattern. |
| Natural frequencies | the frequency at which a system oscillates when not subjected to a continuous or repeated external force. |
| resonance | the reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighboring object. |
| fundamental frequency | the lowest frequency produced by the oscillation of the whole of an object, as distinct from the harmonics of higher frequency. |
| overtones | The higher frequency |
| reverberation | Reverberation is the collection of reflected sounds from the surfaces in an enclosure like an auditorium. |
| eardrum | When waves reach the middle ear they vibrate the eardrum |
| radiant energy | Energy carried by an electromagnetic wave |
| electromagnetic spectrum | the range of wavelengths or frequencies over which electromagnetic radiation extends. |
| radio waves | Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. |
| infrared waves | Infrared waves are electromagnetic radiation of a particular wavelength or color |
| visible lights | Visible light is a form of electromagnetic radiation |
| ultra violet radiation | Is higher frequency than visible light |
| x- rays | Penetrate the top layer of your skin |
| gamma rays | The frequency and, therefore, carry the most energy |
| carrier waves | Radio waves broadcast by a station as its assigned frequency |
| global positioning system | |
| light ray | |
| medium | |
| law of reflection | |
| focal point | |
| focal length | |
| lens | |
| convex lens | |
| concave lens |
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