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Int. Sci. Ch. 15

QuestionAnswer
Medium A physical environment in which phenomena occur
Mechanical Wave A wave that requires a medium through which to travel
Electromagnetic Wave A wave that consists of oscillating electric and magnetic fields, which radiate outward at the speed of light
Transverse Wave A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
Longitudinal Wave A wave in which particles of the medium vibrate parallel to the direction of wave motion
Crest Highest point of a wave
Trough Lowest point of a wave
Amplitude The maximum distance that the particles of a wave's medium vibrate from their rest position
Wavelength The distance from any point on a wave to an identical point of the next wave
Period The time that it takes a complete cycle or wave oscillation to occur
Frequency The number of waves produced in a given amount of time
Doppler Effect An observed change in the frequency of a wave when the source or observer is moving
Reflection The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it doesn't go through
Diffraction A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
Refraction The bending of a wave front as the wave front passes between two substances in which the speed of the wave differs
Interference The combination of two or more waves that results in a single wave
Constructive Interference A superposition of two or more waves that produces an intensity equal to the sum of the intensities of the individual waves
Destructive Interference A superposition of two or more waves that produces an intensity equal to the difference of the intensities of the individual waves
Wave A disturbance that carries energy through matter or space
Created by: archergirl