Longitudinal
Mechanical waves, such as sound waves and water waves, require a medium (solid, liquid, or gas) to travel through. Electromagnetic waves, like light and radio waves, do not require a medium and can travel through a vacuum.
Electromagnetic waves, such as light waves and radio waves, do not require a medium to travel through. These waves can travel through a vacuum, unlike mechanical waves which require a medium to propagate, like sound waves in air or water waves in the ocean.
Electromagnetic.
Mechanical
Electromagnetic waves do not require a medium to travel through. These waves consist of oscillating electric and magnetic fields and can travel through vacuum. Examples include light waves, radio waves, and X-rays.
Electromagnetic waves don't need anything to travel. This kind of waves does not need a medium to move through, therefore they can even travel through outer space.
Mechanical waves require a medium, as opposed to electromagnetic waves which can travel through a vacuum.
Electromagnetic waves, such as light and radio waves, can travel through space because they do not require a medium to propagate. These waves can travel through the vacuum of space and do not need a material substance to carry them.
The only kind of wave that does not require a medium to pass through is an electromagnetic wave. These waves can travel through empty space and do not need a material medium for propagation. Examples of electromagnetic waves include light waves, radio waves, and X-rays.
(1) Electromagnetic waves, (2) gravitational waves.
Both P-waves (primary waves) and S-waves (secondary waves) can travel through solid and liquid materials. However, S-waves cannot propagate through liquids as they require a solid medium for transmission.
An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.