No they are caused by changes in magnetic and electrical fields. When a magnetic field changes it causes an electric field that is perpendicular to it. And vice versa a changing electric field causes a perpendicular magnetic field. These changing fields propagate outwards at the speed of light and are what is meant by an electromagnetic wave.
Transverse waves have crests and troughs. Longitudinal waves have compressions and rarefactions.
Sound Waves
They are the characteristics of waves ( both longitudinal and transverse waves).
They are longitudinal waves. Because they form compressions & rarefactions when they move.
The vibrations of an audio speaker produce sound waves by compressions and rarefactions in air particles.
No. Those phenomena are characteristic of longitudinal waves, such as for example sound waves.
Transverse waves have crests and troughs. Longitudinal waves have compressions and rarefactions.
Transverse waves have crests and troughs. Longitudinal waves have compressions and rarefactions.
Sound Waves
They are the characteristics of waves ( both longitudinal and transverse waves).
They are longitudinal waves. Because they form compressions & rarefactions when they move.
With the help of compressions and rarefactions longitudinal waves get propagated.
The vibrations caused by sound waves onto your eardrums are pressure compressions and rarefactions.
The vibrations of an audio speaker produce sound waves by compressions and rarefactions in air particles.
Sound disturbance is propagated by compressions and rarefactions through the air medium. Air is a material medium. If such a material medium is absent then sound waves cannot be propagated. These compressions and rarefactions confirm that the wave is of longitudinal in nature.
Sound waves do not propagate in a vacuum, since they are basically vibrations (compressions and rarefactions) in a medium, and in a vacuum there is no matter to vibrate.
That sounds very much like the definition of sound waves - or more precisely pressure waves, which is what sound waves are.