Science Unit 2- Chapter 2

An electrical circuit is a path which electrons from a voltage or current source flow.

 A Voltaic Cell (also known as a Galvanic Cell) is an electrochemical cell that uses spontaneous redox reactions to generate electricity.

A battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit

An electrolyte is a liquid or gel that contains ions and can be decomposed by electrolysis, e.g., that present in a battery

The most common type of battery used today is the "dry cell" battery.

An electric cell in which the chemicals producing the current are in the form of a liquid rather than in the form of a paste

A primary cell is a battery that is designed to be used once and discarded, and not recharged with electricity

A rechargeable electric cell that converts chemical energy into electrical energy by a reversible chemical reaction.

A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent.

A solar cell (also called a photovoltaic cell) is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect

A position in a circuit or device at which a connection can be made or broken

A switch is an electrical component that can break an electrical circuit

An open circuit is a kind of electric circuit in which the path that the electrons follow cannot be completed because of an open gap that they cannot flow through.

Electric current is a flow of electric charge through a conductive medium.

The coulomb (symbol: C) is the SI derived unit of electric charge

The ampere (SI unit symbol: A), often shortened to amp, is the SI unit of electric current.

The electrical resistance of a circuit component or device is defined as the ratio of the voltage applied to the electric current which flows through it:

Resistors determine the flow of current in an electrical circuit.

The amount of electric power delivered or required at any specific point or points on a system.

The amount of energy per unit charge needed to move a charged particle from a reference point to a designated point in a static electric field; voltage.

The volt (symbol: V) is the SI derived unit for electric potential (voltage), electric potential difference, and electromotive force.

A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional graphical representation of an electrical circuit.

The current in a series circuit goes through every component in the circuit. Therefore, all of the components in a series connection carry the same current.

If two or more components are connected in parallel they have the same potential difference (voltage) across their ends.

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points.

The ohm (symbol: Ω) is the SI derived unit of electrical resistance

A superconductor is a material that can conduct electricity or transport electrons from one atom to another with no resistance.

Pertaining to a substance or circuit component that does not obey Ohm's law. 

The amount of electric power delivered or required at any specific point or points on a series circuit.

The amount of electric power delivered or required at any specific point or points on a parallel circuit.