Final answer:
Electrical energy is the type of mechanical energy associated with the movement of electrons, which includes phenomena like lightning.
Step-by-step explanation:
The type of mechanical energy associated with the movement of electrons is electrical energy. Mechanical energy, which powers the movement of matter, can produce electricity when a conductor is moved through a magnetic field. Electrical energy is essential as it is due to the flow of electrically charged particles, such as electrons, as seen in the phenomenon of lightning.