Electricity

3. unit of measurement for electric current
5. arrangement of electrical components in which the current is divided and flows through multiple paths
8. a device that converts mechanical energy into electrical energy
9. a connection between an electrical circuit and the earth
10. property of a material that opposes the flow of electrical current
12. the force that drives electric current through a circuit
13. a closed loop through which electric current can flow
15. a device used to open or close an electrical circuit
17. type of current that flows in one direction only
18. a device used to change the voltage of an alternating current
19. a device that converts electrical energy into mechanical energy
20. a device that stores electrical energy in chemical form and releases it as direct current when needed

1. flow of electric charge through a medium
2. type of current that periodically changes direction
4. rate at which electrical energy is transferred or used
6. a material that allows electricity to flow through it easily
7. unit of measurement for electric potential difference
11. arrangement of electrical components in which the current flows through one path only
14. a material that does not allow electricity to flow through it easily
16. a thin, flexible strand of metal used to carry electrical current.