Scientists have collected significant amounts of data about electromagnets and how they operate in motors. Some of the collected data can be observed in the diagrams, images, and information below. The three essential parts of an electric motor are the rotor, the fixed magnets on a rotor, and the commutator.

motor: a machine that converts electrical energy into mechanical energy

rotor: a disk that rotates in an electric motor (also in generators)

commutator: a device responsible for alternating the direction of the current in an electromagnet at the appropriate time to keep the rotor spinning

An electric current is run through the coil, which then generates a magnetic field. The magnetic field of the commutator electromagnet switches its poles at the correct interval so it attracts and repels opposite fixed magnets on the rotor to keep it in motion. The motion changes the electrical energy into mechanical energy.

Based on the evidence, write a scientific description of the relationship of electromagnets to motors. Explain how simple electric motors run.
[Make sure to have a Claim, Evidence, and reasoning separate from each other]