Question

what is the energy of moving objects, or the energy of moving parts of a machine?
mechanical energy
solar energy
potential energy
electrical energy

Explanation:

The question asks for the energy of moving objects or moving parts of a machine. Mechanical energy is the sum of kinetic (energy of motion) and potential energy, and kinetic energy is associated with moving objects. Solar energy comes from the sun, potential energy is stored energy (not directly about motion), and electrical energy is from electric charges. So mechanical energy fits the description.

Answer:

mechanical energy