# Chap. 2 How does electrical energy get around?

## 12 terms

### circuit

a closed loop path of conduction through which an electric current flows

### open circuit

an incomplete path that will not permit an electric current to flow

### closed circuit

a complete path for electric current

### current electricity

the flow of electrons through material

### potential difference

the difference in potential energy between charges in two different locations, voltage

### volts

the SI unit of electric potential

### voltage

potential difference, the difference of potential between two points

### resistance

any opposition that slows down or prevents movement of electrons through a conductor, opposition to the flow of electricity

### ohms

unit for measuring electric resistance

### Ohms Law

a scienctific law stating that the strength of a current is equal to the voltage divided by the resistance of the circuit Amps=volts / ohms

### ampere

the rate of electron flow in a circuit, the unit of current

### amps

unit used to measure the amount of current in a circuit