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Definitions on Wave Phenomena
Self-descriptive
16
Physics
11th Grade
04/19/2011

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Term
Crest
Definition
Peak of a transverse wave
Term
Trough
Definition
Lowest point of a transverse wave
Term
Compression
Definition
The points in a longitudinal wave where all the particles are bunched together. (high pressure)
Term
Rarefaction
Definition
The points in a longitudinal wave where all the particles are far apart (low pressure)
Term
Longitudinal wave
Definition
A wave that involves oscillations that occur parallel to the direction of the energy transfer
Term
Transverse wave
Definition
A wave that involves oscillations that occur perpendicular to the direction of the energy transfer
Term
The Principal of Superposition
Definition
When two waves of the same type meet, the resulting disturbance at any point and at any time is simply the vector sum of the resulting disturbances that would have occurred of the individual waves
Term
Destructive Interference
Definition
A situation that occurs when two identical waves meet at a point and are out phase by 180 degrees resulting in a wave of zero amplitude
Term
Constructive Interference
Definition
A situation that occurs when two identical waves meet at a point and are exactly in phase resulting in a wave that has twice the amplitude of either of the original waves
Term
Wavefront
Definition
A surface at right angles to the direction of a wave consisting of waves in phase
Term
Wavelength
Definition
Denoted by landa, this is the shortest distance (m) between two points that are in phase with one another
Term
Wave speed
Definition
The speed at which the wave pattern passes a stationary observer
Term
Intensity of a wave
Definition
The power per unit of area that is received by the observer
Term
Traveling waves
Definition
Progressive waves that transfer energy. This transfer is achieved by the oscillations of the medium through which the wave travels
Term
Reflection at a boundary
Definition
The situation that occurs when a wave is reflected at the boundary of two media resulting in the wave staying in its original position
Term
Refraction at a boundary
Definition
The situation that occurs when a wave is transmitted across the boundary between two media and subsequently moves from one medium into the other
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