Fill in the Blanks Fill in the Blanks: Elements in a CircuitOnline version Test your knowledge of electronic components by completing the missing words in a circuit-related text. by Manuel Jesús García Rodríguez 1 commutator wires switches flows push positive rotary repeated switches buttons battery motor heat light buzzers sound In a circuit , electricity from the negative side of the , through the and lights up the bulb . Then the electricity continues travelling around to the side of the battery . This process is continually . A bulb transforms electrical energy into energy . We can also use a , which transforms electrical energy into motion . Resistors transform electrical energy into . And bells or transform electrical energy into . We can control the circuit with , and .