Question

9. Thermal energy (heat) is defined as

A. the sum of all the kinetic energies of all the particles in an object
B. the average of all the kinetic energies of all the particles in an object
C. the sum of all the numbers of particles in an object
D. the average number of particles in an object

Answer 1

The correct answer is A. Thermal energy (heat) is defined as the sum of all the kinetic energies of all the particles in an object.