Simple Circuits
What do we call the path electricity flows through?
A circuit
What is the purpose of a switch?
To turn electricity on or off
What should you do before working on any circuit?
Turn off the power
What do we call the flow of electricity?
Current
A light doesn’t turn on—what’s the first thing to check?
Switch or power
What three basic parts are needed for a simple circuit?
Power source, wires, load
What happens when a switch is turned ON?
The circuit is closed
Why are wet hands dangerous around electricity?
Water conducts electricity
What unit is current measured in?
Amps
A breaker keeps tripping—what might be the problem?
Too many devices plugged in
What happens when a circuit is open?
Electricity does not flow
Why are switches important for safety?
They control the flow of electricity
What wire helps prevent electrical shock?
Ground wire
Does current flow only when a circuit is open or closed?
Closed
Why should extension cords not be overloaded?
They can overheat
What happens when a circuit is closed?
Electricity flows
Why are switches mounted in boxes?
For safety and protection
What safety device protects people from shock in wet areas?
GFCI outlet
What happens to current when a breaker trips?
It stops flowing
Why are outdoor outlets covered?
To keep out water
What happens to a light bulb in a closed circuit?
It lights up
A switch opens or closes what part of a circuit?
The circuit path
What should you do if you see damaged wiring?
Do not touch it and report it
What usually happens to current if voltage increases?
It increases
Why should cords never be run under rugs?
They can overheat or get damaged