It's not quite accurate to say that wave particles "begin to travel". Instead, waves themselves are the propagation of energy through a medium or space. Here's a breakdown of what happens:

Waves are disturbances:

* Mechanical waves require a medium (like water or air) to travel. They are disturbances in this medium, causing particles to oscillate around a fixed point. Imagine dropping a pebble into a pond. The ripples are the wave, and the water molecules move up and down (oscillate) to create the wave pattern.

* Electromagnetic waves do not require a medium and can travel through the vacuum of space. These waves are disturbances in electric and magnetic fields, which oscillate perpendicular to each other and the direction of wave propagation. Light is an example of an electromagnetic wave.

Key points about wave particles:

* They don't actually travel. The particles in a medium (like water molecules) move back and forth around a fixed point. Energy is transferred, but the particles themselves don't move along with the wave.

* The energy travels. The energy associated with the wave disturbance is what propagates. For example, when you throw a ball, you transfer energy to it, and this energy travels with the ball. In waves, the energy travels as a disturbance, not as the movement of the individual particles.

* Wave properties: Waves have various properties, including wavelength, frequency, amplitude, and speed. These properties depend on the nature of the wave and the medium it travels through.

To summarize:

* Waves are not particles that begin to travel.

* Waves are disturbances that transfer energy.

* Particles in a medium oscillate around a fixed point, allowing the wave to propagate.

Let me know if you have any other questions about waves!