Any kind of disturbance triggers mechanical waves that propagate perpendicular to the motion of disturbance.
However for mechanical motion, it is necessary that the wave is propagated in a medium.
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Mechanical waves are formed by the vibration of particles within a medium. When a force is applied to a medium, it causes particles to move and transfer energy to neighboring particles, creating a wave that propagates through the medium. These waves can be transverse, like ocean waves, or longitudinal, like sound waves.
Mechanical waves, shock waves, etc.
Another name for mechanical waves is elastic waves.
Mechanical waves are waves that require a medium to travel through, such as water waves, sound waves in air, and seismic waves in the Earth's crust. These waves transfer energy through the oscillation of particles in the medium.
Electromagnetic waves do not require a medium to travel through, unlike mechanical waves which do. Additionally, electromagnetic waves can travel through a vacuum, while mechanical waves cannot.
To test if mechanical waves work in a vacuum, you would need to conduct an experiment where you create mechanical waves in a controlled environment that is a vacuum. If the waves can still propagate and be detected in the vacuum, then it shows that mechanical waves can work in a vacuum. If the waves cannot propagate or be detected in the vacuum, then it indicates that mechanical waves do not work in a vacuum.