Current

Currents- The flow of charges through an object. It is measured in amperes. There are two types. Direct current and Alternating Current. We use both in society.
DC- Direct Current. (Charges only flow in one direction) hint: used in batteries.
AC- Alternating Current (charges flow and change in opposite directions). We manipulate Alternating Current by alternating the polarity of the voltage. AC is used in common household appliances.