Question

the total kinetic and potential energy of the molecules of an object is known as

multiple choice
external energy.
molecular energy.
atomic energy.
internal energy.

Explanation:

Internal energy is defined as the total kinetic and potential energy of the molecules within an object. External energy refers to energy associated with the object's motion or position in an external field. Molecular energy is a less - specific term. Atomic energy is related to energy within atoms (like in nuclear reactions).

Answer:

internal energy.