Answer the following question given this paragraph: 

No doubt you already have a good idea of what temperature is. You might define it as how hot or cold something feels. In physics, temperature is defined as the average kinetic energy of the particles in an object. When particles move more quickly, temperature is higher and an object feels warmer. When particles move more slowly, temperature is lower and an object feels cooler.


Q: In physics, _______ is defined as the average kinetic energy of the particles in an object?

 Choices:

- climate

- potential energy

- heat

- temperature

A:
temperature
