This document discusses the basics of electric circuits, including that a circuit allows electricity to flow in a closed loop from a power source through conducting materials to an energy receiver and back to the source. It defines key circuit components like batteries, bulbs, switches, and motors. It also explains that conductors like metals allow electricity to flow while insulators do not, and a closed circuit is needed for current to flow.

1. Electricity
Investigation 2: Making Connections
path
A circuit is a pathway through
which electric current flows.
(wires)
Electricity Electricity
Source receiver
D-cell is a source of electric energy. A bulb is an energy receiver that
produces light.
circuit
filament
Conductors are Insulators are materials
materials that allow the flow of that do not allow the flow of
electricity. electricity.
Schematic Drawing
fahnstock clip
Circuit base
A closed circuit
A switch is a device that allows electricity to flow;
opens and closes a circuit.
an open circuit
does not.
component is any part of a circuit system
(wires, D-cell, bulbs).
A Motor is an energy receiver that
produces motion.
To make a complete circuit,
electricity must travel in a circle from the
negative end of the battery, through the
circuit, and to the positive end.
All Metals are conductors.
Metals that are covered with an insulating layer will not conduct electricity.
Klang