Here's why:
* Temperature is a measure of the average kinetic energy of particles. Kinetic energy is the energy of motion.
* Increased particle motion means increased kinetic energy. The faster the particles move, the more kinetic energy they have.
* More kinetic energy directly translates to higher temperature.
Think of it like this: If you heat up a pot of water, the water molecules start moving faster. This increased motion makes the water hotter.
