All sound waves, be that ultrasound or audible sound. Likewise water waves...
A mechanical wave, such as sound waves or seismic waves, requires a medium (solid, liquid, or gas) in order to propagate because the wave energy is transferred through the particles of the medium vibrating or oscillating. Without a medium, these types of waves cannot travel.
To create a wave, you will need a medium such as water or air, a source of energy to disturb the medium (like wind or a vibrating object), and space for the wave to propagate.
The type of wave that requires a medium to propagate and cannot travel through a vacuum is called a mechanical wave.
Mechanical waves, such as sound waves and water waves, require a medium in order to propagate because the particles of the medium are involved in the transfer of energy from one point to another. In the absence of a medium, these waves cannot travel.
Mechanical waves badly need a material medium to get propagated. For example sound waves need air, water or solid medium to pass through. But light though it is a wave, it could pass through even through vacuum. Hence it is not a mechanical wave. But it is proved to be an electromagnetic wave. Present science has accepted even free space ie vacuum to be a medium but it is non-material medium.
They need a medium to propagate through.
The medium of any wave is the material that the wave energy travels through; in this case water.
A mechanical wave, such as sound waves or seismic waves, requires a medium (solid, liquid, or gas) in order to propagate because the wave energy is transferred through the particles of the medium vibrating or oscillating. Without a medium, these types of waves cannot travel.
To create a wave, you will need a medium such as water or air, a source of energy to disturb the medium (like wind or a vibrating object), and space for the wave to propagate.
Waves need a medium to propagate themselves through. The waves generated on a pond by a falling droplet need a medium, in this case its the very water of the pond. Sound waves can propagate both though a water medium or an air medium for example. Electromagnetic waves are an exception in that they do not need a medium to propagate through (the can propagate through the void of interstellar space).
The "medium" for a wave is whatever the wave goes through - or more precisely, whatever it needs, in order to propagate. In this case, the Earth.
The type of wave that requires a medium to propagate and cannot travel through a vacuum is called a mechanical wave.
Sound waves need a medium to propagate. Light-waves and other electromagnetic wave (radio, xray) do not.
The Earth itself is.
A mechanical wave generally does NOT require a medium to propagate.
Mechanical waves, such as sound waves and water waves, require a medium in order to propagate because the particles of the medium are involved in the transfer of energy from one point to another. In the absence of a medium, these waves cannot travel.
Mechanical waves badly need a material medium to get propagated. For example sound waves need air, water or solid medium to pass through. But light though it is a wave, it could pass through even through vacuum. Hence it is not a mechanical wave. But it is proved to be an electromagnetic wave. Present science has accepted even free space ie vacuum to be a medium but it is non-material medium.