Waves

thumb|A drum produces sound via a vibrating membrane.

thumb|Surface waves in water showing water ripples

thumb|right|The wavelength of a sine wave, λ, can be measured between any two points with the same phase, such as between crests (on top), or troughs (on bottom), or corresponding [[zero crossings as shown.]]

entire range and scope of frequencies of electromagnetic radiation

conclusion that quantum objects behave at times like particles and at times like waves

mathematical description of the quantum state of a system; complex-valued probability amplitude, and the probabilities for the possible results of measurements made on the system can be derived from it

mathematical curve that describes a smooth repetitive oscillation; continuous wave

physical phenomenon

moving wave that consists of oscillations occurring perpendicular (right angled) to the direction of energy transfer (or the propagation of the wave)

sound with a typical pitch; steady periodic sound; characterized by its duration, pitch, intensity (or loudness), and timbre (or quality)

aspect of wave–particle duality

principle of least time

fundamental physics principle stating that physical solutions of linear systems are linear

In physics, the wavefront of a time-varying wave field is the set (locus) of all points having the same phase. The term is generally meaningful only for fields that, at each point, vary sinusoidally in time with a single temporal frequency (otherwise the phase is not well defined).

electromagnetic frequencies ranging from 3 kHz to 300 GHz

wave which is an oscillation of matter

relativistic wave equation in quantum mechanics

longitudinal seismic wave

specialty of electronic engineering

elliptic partial differential equation (∇²+𝑘²)𝑓=0

type of inertial wave in the atmospheres and oceans of planets that largely owe their properties to rotation of the planet

example of metachronal rhythm achieved in a packed stadium

the eigenfrequency at which systems tend to oscillate without driving or damping forces

method of market analysis

relative importance of certain frequencies in a composite signal

transverse seismic wave

concept in statistics and wave theory

type of surface wave caused due to earthquake

continuous traffic flow over several intersections due too coordinated traffic lights

point along a standing wave where the wave has minimum amplitude

wave within a fluid medium, rather than on the surface

thumb|upright=1.4|A frequency spectrum plot showing intermodulation between two injected signals at 270 and 275 MHz (the large spikes). Visible intermodulation products are seen as small spurs at 280 MHz and 265 MHz. right|3rd order intermodulation products (D3 and D4) are the result of nonlinear behavior of an amplifier. The input power level into the amplifier is increased by 1 dB in each successive frame. The output power of the two carriers (M1 and M2) increases by about 1 dB in each frame, while the 3rd order intermodulation products (D3 and D4) grow by 3 dB

Acousto-optics is a branch of physics that studies the interactions between sound waves and light waves, especially the diffraction of laser light by ultrasound (or sound in general) through an ultrasonic grating.

neural oscillatory pattern

nautical term for a phenomenon which can occur when a layer of fresh or brackish water rests on top of denser salt water, without the two layers mixing

effect of damping of longitudinal space charge waves in plasma or a similar environment

aspect of harmonic sounds

periodic disturbance

pressure wave

function describing the extremes of an oscillating signal

magnetic propagations

imbalance helicopter rotation when the blades become bunched in the rotational plane, typically on the ground when the landing gear is prevented from freely moving

feature of a longitudinal wave

rogue wave occurring at the Draupner platform in the North Sea on 1 January 1995

distance over which a propagating wave maintains a certain degree of coherence

delays experienced through a linear time-invariant system

indication of rate and sense of rotation

thumb|305px| An example of rarefaction is also as a Phase (waves)|phase in a [[sound wave or phonon. Half of a sound wave is made up of the compression of the medium, and the other half is the decompression or rarefaction of the medium.]] Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves (sound waves, for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture).

type of highway congestion

disruption in the flow of elements caused by fluctuations in the motion of a traveling body

Physics formula

type of radiant energy

movements produced by the sequential action (as opposed to synchronized) of structures

a waveform used by synthesizers

measure of speech transmission quality

sensor implementation technique

wave that can travel around a concave surface