A disturbance that travels through a medium by transferring energy from one point to another without transferring matter.

Here's a breakdown:

* Disturbance: A mechanical wave is caused by a vibration or disturbance in a medium. This could be a vibrating string, a sound wave, or the shaking of water.

* Medium: A mechanical wave needs a medium to travel through, like air, water, or a solid. The medium itself does not travel with the wave.

* Energy Transfer: The wave carries energy from one point to another. This energy is transferred through the interaction of particles in the medium.

* No Matter Transfer: The particles in the medium oscillate around their equilibrium positions, but they don't travel along with the wave. Only the disturbance (and the energy) propagates.

Examples of Mechanical Waves:

* Sound waves: These waves travel through air, water, and solids.

* Water waves: These waves travel on the surface of water.

* Seismic waves: These waves travel through the Earth's crust.

* Waves on a string: These waves are created by vibrating a string.

Key points to remember about mechanical waves:

* They require a medium to travel.

* They transfer energy, not matter.

* They are characterized by their amplitude, frequency, and wavelength.

Contrast to Electromagnetic Waves:

Electromagnetic waves, like light, don't require a medium to travel and can travel through a vacuum.