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WAVES

Energy: Light , Sound, Heat Transfer,

QuestionAnswer
Conduction The transfer of thermal energy through touching
convection the transfer of thermal energy through liquids and gases
radiation the transfer of heat energy through waves
transfer to move from one location to the next
vibration a periodic motion of the particles of an elastic body or medium in alternately opposite directions from the position of equilibrium when that equilibrium has been disturbed
medium a substance regarded as the means of transmission
rarefaction a state or region of minimum pressure in a medium traversed by compressional waves (such as sound waves)
infrared situated outside the visible spectrum at its red end —used of radiation having a wavelength between about 700 nanometers and 1 millimeter
frequency the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variable
longitudinal wave particles of the medium vibrate in the direction of the line of advance of the wave
compression a longitudinal wave (such as a sound wave) propagated by the elastic compression of the medium
transparent having the property of transmitting light without appreciable scattering so that bodies lying beyond are seen clearly
ultraviolet situated beyond the visible spectrum at its violet end —used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
amplitude the extent of a vibratory movement (as of a pendulum) measured from the mean position to an extreme
transverse waves a wave in which the vibrating element moves in a direction perpendicular to the direction of advance of the wave
electromagnetic waves a wave of energy having a frequency within the electromagnetic spectrum.
translucent transmitting and diffusing light so that objects beyond cannot be seen clearly
equilibrium a state of adjustment between opposing or divergent influences or elements (balanced)
pitch the property of a sound and especially a musical tone that is determined by the frequency of the waves producing it :highness or lowness of sound
trough a long, low area between waves
disturbance a local variation from the average or normal conditions
opaque blocking the passage of radiant energy and especially light
conductors a material or object that allows electricity or heat to move through it
loudness the attribute of a sound that determines the magnitude of the auditory sensation produced and that primarily depends on the amplitude of the sound wave involved
crest the highest part or point of the wave
refraction the action of distorting an image by viewing through a medium;
insulators a material that is a poor conductor (as of electricity or heat)
electromagnetic spectrum the range of all possible frequencies of electromagnetic radiation
refraction the bending of a ray when it passes at an angle from one medium into another in which the speed is different
energy ability to cause change in matter
Created by: Ms. Long 6