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All sound waves, be that ultrasound or audible sound. Likewise water waves...
Sound waves require a medium such as air, solid, or liquid in order to propagate. Electromagnetic waves do not require a medium for propagation and can move through a vacuum.
The speed of sound in vacuum is zero. Sound needs a material medium in order topropagate. Since vacuum contains no material medium, sound does not propagate.Therefore, it never moves from the source of the sound, and theSpeed = (distance covered in any time interval) divided by (time to cover the distance)is zero.
Nothing! Sound is wave and needs a medium to pass through in order to be heard !!!Nothing, because sound cannot travel in a vacuum.
Light, whatever the wavelength, does not need a medium in order to radiate.
The Earth itself is.
The medium of any wave is the material that the wave energy travels through; in this case water.
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.
All sound waves, be that ultrasound or audible sound. Likewise water waves...
Sound waves require a medium such as air, solid, or liquid in order to propagate. Electromagnetic waves do not require a medium for propagation and can move through a vacuum.
Sound waves cannot travel in space. Sound waves some medium in order to propagate.
No, you can not produce sound in a vacuum. Sound wave needs medium (for example air) to travel unlike electromagnetic wave which can travel through empty space.actually, sound wave does not propagate itself rather it needs a medium by which sound particle can transfer there energy from one place to other, so it seems like moving. for eg. when u throw a stone in water ,some ripples form in water they seems to moving but not. like this sound propagate. hence it requires medium
To propagate is to increase and spread by means of reproduction.
The Answer: A plant needs water in order to spread its type. A seed also needs air and a growing medium such as soil in order to germinate.
The speed of sound in vacuum is zero. Sound needs a material medium in order topropagate. Since vacuum contains no material medium, sound does not propagate.Therefore, it never moves from the source of the sound, and theSpeed = (distance covered in any time interval) divided by (time to cover the distance)is zero.
A wave, by definition, is an oscillation propagating through a medium. So in order for a wave to move it needs a medium (ie. air, water, earth, etc.) and energy. In the case of light (ie. photons), which is a form of wave that can travel through a vacuum, the medium is the electromagnetic field.
Light, whatever the wavelength, does not need a medium in order to radiate.