* Sound waves: These travel through air, water, solids, and even plasma. The vibrations of the medium (like air molecules) carry the sound energy.
* Water waves: These travel across the surface of water, with the water molecules moving in a circular motion.
* Seismic waves: These travel through the Earth's crust, mantle, and core, carrying energy from earthquakes and volcanic eruptions.
* Waves on a string: A string vibrates, and the disturbance travels along the string as a wave.
* Waves in a spring: A spring can be stretched and compressed, and these disturbances can travel along the spring as waves.
Key features of mechanical waves:
* Require a medium: They cannot travel through a vacuum.
* Transfer energy: They carry energy from one point to another.
* Do not transfer matter: The medium itself does not travel along with the wave.
Examples of waves that are NOT mechanical:
* Electromagnetic waves: These waves, like light and radio waves, do not need a medium and can travel through a vacuum.
Let me know if you have any more questions about mechanical waves!
