Step-by-step explanation:
The circuit that Raul created contains of a battery, light bulb and some wires.
The battery is connected to the wires which are connected to the bulb.
The battery has some potential voltage (potential energy) which cause the electrons in the wire to carry current (electrical energy) which is taken by the bulb which converts the energy to the light energy. The bulb usually gets hot while it is one due to the some conversion of the electrical energy into the thermal energy.