There are many kinds of particles and many kinds of motion, so there is more than one answer to that question. In many cases, particle motion is explained by Newtonian mechanics. In other cases, you would need quantum mechanics or Einstein's theory of relativity, or the Maxwell equations if the particles are photons.
Brownian motion. This is random motion of micro particles resultimg from collisions between the particle in question and other particles in the surrounding medium.
Brownian motion
The wave-particle duality theory. This explains why sometimes light appears to travel as a wave, and why sometimes it appears to travel as a particle.
Particle motion increases as energy (like heat) is added. The motion slows as energy leaves. Temperature is a measure of this change in particle motion.
The energy possessed by a particle due to its motion is called kinetic energy. It depends on the mass of the particle and its velocity.
Particle motion and thermal heat energy should both be increasing
The measure of energy of motion of a particle of matter is called kinetic energy. It is calculated using the formula KE = 0.5 * mass * velocity^2, where mass is the mass of the particle and velocity is its speed.
The particle motion in shear waves relative to the energy of the wave is downward.
There are three general types of mechanical waves: – Transverse – particle motion is perpendicular to wave motion. – Longitudinal – particle motion is in the same direction as wave motion. – Combined – sea waves.
A stationary particle.
The particle model of light explains that light behaves like a stream of particles called photons. It helps account for phenomena such as the photoelectric effect and the discrete nature of light energy.
In an ideal gas, particles are assumed to be point masses with no volume and no intermolecular forces acting between them. Therefore, the motion of one particle is independent of the motion of the other particles because they do not interact with each other. Each particle moves freely and randomly in all directions without influencing the motion of other particles.