Answer: Temperature
Step-by-step explanation: Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:
K.E= Average kinetic energy
R= gas constant
T= temperature
From the equation above, it can be seen that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and vice-versa.
Thus average kinetic energy of the particles in an object is related to temperature.