Electricity Unit Test

CHEMICAL ENERGY

Energy stored in chemical compounds

BATTERY

A device that stores chemical energy and converts it to electrical energy.

OHM'S LAW

An equation that describes the relationship between current, resistance, and voltage in a circuit.

SERIES CIRCUIT

An electric circuit with a single path

AMMETER

A device used to measure current in a circuit

PARALLEL CIRCUIT

An electric circuit with multiple paths

VOLTMETER

A device used to measure voltage, or electrical potential energy difference

ELECTRIC CURRENT

The continuous flow of electric charges through a material

ELECTRIC CIRCUIT

A complete, unbroken path through with electric charges can flow

CONDUCTOR

A material through which charge can flow easily

INSULATOR

A material through which charges cannot flow easily

VOLTAGE

The difference in electrical potential energy between two places in a circuit

VOLTAGE SOURCE

A device that creates a potential difference in an electric circuit

RESISTANCE

The measure of how difficult it is for charges to flow through a material

Ampere

Also known as Amps, unit of measurement for current

OPEN CIRCUIT

When the electrical path is broken, preventing current from flowing.

CLOSED CIRCUIT

A complete electrical path that allows current to flow.

Volts

Unit of measurement for voltage

Ohms

Unit of measurement for resistance