Velocity of light in a medium depends on the electric and magnetic properties of that medium, namely permittivity, and permeability.
It could be a meteor.
Seismic waves are mechanical waves.
In its most basic form (by its most basic definition), electricity is moving charges. Moving charges are matter, so electricity, which we normally consider to be moving electrons, is a moving matter stream. But it can also be looked at as a moving energy stream or as a wave, and this is a function of the physics associated with wave-particle duality. But you can consider a stream of moving electrons as matter because electrons are subatomic particles with mass.
Elctromagnetic radiation is a moving "pair" of "waves" in space. One is a magnetic wave and the other is an electric wave, and they move in phase and at right angles to each other. When they are created by a moving charge or charges, the energy of the wave is "bundled" into this pair of waves or fields, and moves away from the source like the ripples across a pond. Except the moving fields do not need anything to "carry" the energy. No medium is required. In contrast, a water wave or a sound wave is mechanical energy, and the source transferred energy into the medium, and the medium must carry it. the electromagnetic wave is sulf sustaining and can move through a complete vacuum. Use the links below to related questions and related articles.
The motivation is the electromagnetic repulsion of electrons.
-- The speed of an electromagnetic wave depends on the electrical characteristics of the stuff it's moving through. If it's moving through vacuum, then it depends on the permeability and permittivity of vacuum, and comes out to be 299,792,458 meters per second. -- The speed of a mechanical wave depends on the mechanical characteristics of the stuff it's moving through. If there's no material stuff there, then the speed is zero.
It may be called a "wave." Waves are a type of vibration that carry energy from molecule to molecule through matter. A "wave" can also be electromagnetic energy, which does not require matter to propagate.
Electromagnetic waves carry energy through matter and empty space. They consist of two transverse waves - one is the magnetic field and one is the electric field - which travel perpendicular to the direction that the wave is moving.
Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromagnetic force, which is one of the four fundamental forces. Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromag
Yes. The speed of mechanical waves, like sound and seismic, depends on the mechanical properties of the medium. The speed of electromagnetic waves, like light and radio, depends on the electrical properties of the medium.
the answer is sound for all those of you that have trouble with science
It could be a meteor.
Light is a certain spectrum (frequency range) of electromagnetic waves, while some of the electromagnetic waves cannot be seen in the naked eyes, those in the spectrum of light can be seen. electromagnetic waves need no matter to travel in or through (unlike sound waves). you cannot see anything but light. the source of light however is usually matter so you get to see light from sources of light which looks like the sources or reflectors (matter). you cannot see light when its not moving towards you unless it reflects with matter and then moves towards you..
This process is known as Electromagnetic Induction first observed by Michael Faraday.