Abeka Science Matter and Energy Test 7 Practice 2026 - Free Practice Questions and Study Guide

An electrical circuit is a closed loop that lets electrical charges flow from a power source, through conducting paths to a device (the load), and back to the source. When the loop is complete, electrons move and the device uses that energy to operate. If the loop is broken, current stops and the device won’t run. A device that stores charge (like a capacitor) can be part of a circuit but isn’t the whole circuit by itself. A pathway for light isn’t the circuit itself, and a circuit that prevents current describes an open or incomplete loop, not the circuit concept. So the best description is a closed path that enables electrons to flow and power a device.