Download Introducing Current Electricity Current Electricity

Introducing Current Electricity
LG: to understand the basics of current electricity
Introducing Current Electricity
Current Electricity: the controlled flow of
electrons through a conductor
electron movement in an insulator
electron movement in a conductor
LG: to understand the basics of current electricity
Introducing Current Electricity
Electric Circuit: a continuous path in which
electrons flow
LG: to understand the basics of current electricity
Introducing Current Electricity
Electric Circuit: a continuous path in which
electrons flow
Source: a supplier of energized electrons
-either a battery or from a wall outlet
LG: to understand the basics of current electricity
Introducing Current Electricity
Electric Circuit: a continuous path in which
electrons flow
Load: a device that converts electrical energy
into other forms of energy
-e.g. lamp or motor
LG: to understand the basics of current electricity
Introducing Current Electricity
Electric Circuit: a continuous path in which
electrons flow
Conductors: wires that transmit electrons from
the source anode (negative terminal) to the
load & back to the source cathode (positive
terminal)
LG: to understand the basics of current electricity
Introducing Current Electricity
Electric Circuit: a continuous path in which
electrons flow
Switch: a device that controls the flow of
electrons by opening the circuit
open
closed
LG: to understand the basics of current electricity
Introducing Current Electricity
Electrical Energy: the energy provided by the
flow of electrons in an electric circuit
LG: to understand the basics of current electricity
Introducing Current Electricity
Electrical Energy: the energy provided by the
flow of electrons in an electric circuit
Electric Cell: a device that converts chemical
energy into electrical energy
Batteries: can contain one or many cells
LG: to understand the basics of current electricity
Introducing Current Electricity
Electrical Energy: the energy provided by the
flow of electrons in an electric circuit
Electric Cell: a device that converts chemical
energy into electrical energy
Batteries: can contain one or many cells
Primary Cell: an electric cell that can be used
only once
Secondary Cell: an electric cell that can be
recharged
LG: to understand the basics of current electricity
Introducing Current Electricity
Electrical Energy: the energy provided by the
flow of electrons in an electric circuit
Electric Cell: a device that converts chemical
energy into electrical energy
Batteries: can contain one or many cells
Primary Cell: an electric cell that can be used
only once
Secondary Cell: an electric cell that can be
recharged
Fuel Cell: a special kind of electric cell through
which a continuous supply of chemicals is
pumped as the cell operates
LG: to understand the basics of current electricity
Introducing Current Electricity
Forms of Current Electricity
Direct Current: a flow of electrons in one
direction through an electric circuit
-form produced by batteries
LG: to understand the basics of current electricity
Introducing Current Electricity
Forms of Current Electricity
Alternating Current: a flow of electrons that
alternates in direction in an electric circuit
-produced in generating stations because it's
more efficient at distributing electricity long
distances
LG: to understand the basics of current electricity