# Shared Flashcard Set

## Details

Chapter 10: Waves
vocabulary
20
Science
11/26/2012

Term
 wave
Definition
 a repeating disturbance or movement that transfers energy through matter or space
Term
 medium
Definition
 the matter the wave travels through, could be solid, liquid, or gas
Term
 transverse wave
Definition
 moves back and forth at right angles to the direction that the wave travels
Term
 compressional wave
Definition
 moves back and forth along the same direction that the wave travels
Term
 crests
Definition
 high points of the wave
Term
 troughs
Definition
 low points of a wave
Term
 rarefaction
Definition
 the less dense part of a compressional wave
Term
 wavelength
Definition
 the distance between one point on a wave and the next one like it; crest to crest, trough to trough
Term
 frequency
Definition
 the number of wavelengths that pass a fixed point each second
Term
 period
Definition
 amount of time it takes one wavelength to pass a point
Term
 wave speed
Definition
 v=frequency x wavelenth
Term
 amplitude
Definition
 related to the energy carried by a wave; the greater the energy is the more amplitude it has; measured from resting point to high or low point
Term
 The Law of Reflection
Definition
 the angle of incidence is equal to the angle of reflection
Term
 refraction
Definition
 bending of a wave caused by a change in its speed as it moves from one medium to another
Term
 diffraction
Definition
 causes a wave to change direction and bend
Term
 interference
Definition
 when two or more waves overlap and combine to form a new wave
Term
 constructive interference
Definition
Term
 destructive interference
Definition
 waves subtract from each other
Term
 standing wave
Definition
 forms when waves equal in wavelength and amplitude, and in opposite directions, continuously interfere with each other
Term
 resonance
Definition
 the process in which an object is made to vibrate by absorbing energy at its natural frequency
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