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MS10- Energy

TermDefinition
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
Created by: 1411183
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