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Examples of wave energy include ocean waves, tidal currents, and underwater currents. These natural sources of energy can be harnessed to generate electricity using technologies such as wave energy converters and tidal turbines.
That is called a longitudinal wave. In a longitudinal wave, the particles of the medium move parallel to the direction of the wave's energy transfer. Sound waves in air are examples of longitudinal waves.
The wave that carries energy from one place to another is called a mechanical wave. Examples of mechanical waves include sound waves and seismic waves.
A mechanical wave uses matter to transfer energy. This type of wave requires a medium, such as air or water, to propagate. Sound waves and seismic waves are examples of mechanical waves.
When waves are absorbed by a material, some of their energy is converted into thermal energy due to the interactions between the wave's energy and the particles in the material. This conversion process causes the material to heat up as a result of the absorbed wave energy being transformed into heat energy.
The energy of a mechanical wave depends on its amplitude and frequency. The greater the amplitude (height or intensity) and frequency (number of waves per second), the higher the energy carried by the wave.