Electricity and Waves

The set of physical phenomena associated with the presence and motion of electric charge.

A fundamental conserved property of some subatomic particles that determines their electromagnetic interaction.

The rate of flow of electric charge past a point or region.

A vector field that associates to each point in space the Coulomb force that would be experienced per unit of electric charge, by an infinitesimal test charge at that point.

The amount of electric potential energy that a unitary point charge would have if located at any point in space.

The rate, per unit time, at which electrical energy is transferred by an electric circuit.

A disturbance that transfers energy through matter or space, with little or no associated mass transport.

Waves that require a medium to propagate.

Waves that do not require a medium to propagate; they can travel through a vacuum.

The distance between two successive crests or troughs of a wave.

Number of oscillations or cycles per unit time.

The maximum displacement of a point on the wave from its equilibrium position.

The time taken for one complete oscillation.

The change in direction of a wave at an interface between two different media, causing the wave to return into the medium from which it originated.

The change in direction of a wave as it passes from one medium to another due to a change in speed.

The bending of waves around obstacles or through openings.

The superposition of two or more waves resulting in a new wave pattern.

The principle that the total amplitude at a point is the sum of the amplitudes of the individual waves.

A property of transverse waves that describes the orientation of the oscillations in a plane perpendicular to the direction of travel.

The change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.