Final answer:
The average kinetic energy of the particles in an object is described as temperature, which indicates how 'hot' or 'cold' an object is.
Step-by-step explanation:
A measure of the average kinetic energy of the particles in an object is called temperature. This means that when particles in an object move or vibrate quickly, they have higher average kinetic energy, which results in a higher temperature of the object.
Conversely, when particles are moving slowly, they have lower average kinetic energy, which results in a lower temperature. It is important to note that thermal energy is related but not identical to temperature; it is the total sum of the kinetic and potential energy of the particles in a system.
The measure of the average kinetic energy of the particles in an object is temperature. Temperature is a quantitative measure of 'hot' or 'cold' and it represents the average kinetic energy of the particles due to their random motion.
When the particles in an object move or vibrate quickly, they have a higher average kinetic energy and the object is considered 'hot'. On the other hand, when the particles move slowly, they have lower average kinetic energy and the object is considered 'cold'.