Those two descriptions are not mutually exclusive,
and in fact, electromagnetic waves do both.
Sound waves need a physical material to carry them, but electromagnetic waves don't.
Becasue heat radiation(Infra-red) is part of the electromagnetic spectrum. All waves in the electromagnetic spectrum(e.g light, radio waves) don't need particles(mass) to carry energy.
These disturbances are known as "waves". Examples include compression waves in air or other media (i.e., sound), and electromagnetic waves, which can travel both through matter and through empty space.
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.
most kinds of waves need something to travel through. Water waves, for example, travel along the surface of the water. A wave can even travel along a rope. Gases (such as air), liquids (such as water), and solids (such as rope) , all act as mediums. Waves that require a medium through which travel are called mechanical waves.Some waves do not require a medium to travel through. Light can travel and carry energy through empty space. Waves that can travel without a medium are called electromagnetic waves. :)
It is radiated electromagnetic energy, the only sort that can travel through space.
mechanical waves carry mechanical energy and electromagnetic waves carry electromagnetic energy.
mechanical waves carry mechanical energy and electromagnetic waves carry electromagnetic energy.
Sound waves need a physical material to carry them, but electromagnetic waves don't.
Electromagnetic waves carry energy, not matter.
Becasue heat radiation(Infra-red) is part of the electromagnetic spectrum. All waves in the electromagnetic spectrum(e.g light, radio waves) don't need particles(mass) to carry energy.
These disturbances are known as "waves". Examples include compression waves in air or other media (i.e., sound), and electromagnetic waves, which can travel both through matter and through empty space.
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.
Radiation, or electromagnetic waves do not require matter to carry energy.
most kinds of waves need something to travel through. Water waves, for example, travel along the surface of the water. A wave can even travel along a rope. Gases (such as air), liquids (such as water), and solids (such as rope) , all act as mediums. Waves that require a medium through which travel are called mechanical waves.Some waves do not require a medium to travel through. Light can travel and carry energy through empty space. Waves that can travel without a medium are called electromagnetic waves. :)
No medium to carry the sound energy.
Of course. It's generally known by virtually everyone that electromagnetic waves carry energy just fine through empty space.