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Waves

Wave vocabulary

TermDefinition
wave a disturbance that moves energy from one place to another
longitudinal wave waves in which the displacement of the medium is parallel to the direction of travel of the energy wave
transverse wave wave that consists of oscillations occurring perpendicular (or right angled) to the direction of energy transfer
amplitude refers to the maximum amount of displacement of a particle on the medium from its rest position.
wavelength the distance between identical points, such as successive crests, on a wave
frequency refers to how often the particles of the medium vibrate when a wave passes through the medium; measured in cycles per second, or Hertz (Hz)
Hertz the unit used to measure a wave's frequency
mechanical wave waves that require a medium in order to transport their energy from one location to another
electromagnetic wave waves which can travel through the vacuum of outer space in the form of different frequencies of light.
trough lowest point in a wave
crest highest point in a wave
rest position the position in which the wave would sit if there was no disturbance moving through it, also called the midpoint
reflection the bouncing back of a wave when it hits a new medium or barrier
refraction the bending of a wave due to speed change as it passes from one medium to another
diffraction the spreading and bending of a wave as it goes through an opening or around a barrier
Decibel The unit of measure for the intensity or volume of sound. (dB)
Doppler Effect The change in perceived pitch that occurs when the source of sound or the observer of the sound is moving.
Intensity The amount of energy in a wave
Pitch The quality of highness or lowness of sound due to frequency and wavelength.
Resonance When one object vibrating at the same natural frequency of a second object forces that second object into vibrational motion.
Vacuum A space containing little or no particles of matter
loudness the physical strength of the sound pressure level, measured in decibels.
Created by: coachsteele
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