a review of chapter 5 using electricity in your home work, energy, and power
TRANSCRIPT
A Review of A Review of Chapter 5Chapter 5
USING USING ELECTRICITY ELECTRICITY IN YOUR IN YOUR HOMEHOME
USING USING ELECTRICITY ELECTRICITY IN YOUR IN YOUR HOMEHOME
WORK, WORK, ENERGY, AND ENERGY, AND
POWERPOWER
Work is a force moving through a distance
ENERGY : ENERGY : ENERGY : ENERGY : Is defined as Is defined as the ability the ability to do workto do work
Power is the Rate at which Energy is Produced
Measured in Joules if small amount of energy Measured in Kilowatt-Hours if large amount
Useful EnergyObtained from an Appliance
Energy Used to Operate the Appliance
Efficiency =
REDUCE THE AMOUNT YOU USE
The use of electrical energy can be reduced by turning off unused lights and appliances
The use of electrical energy can be reduced by using more efficient lights and appliance
howhow doesdoes electricity get get toto your your homehome
howhow doesdoes electricity get get toto your your homehome
Three wires supply Three wires supply the electricity to your the electricity to your homehome
Two of these wires Two of these wires are are “HOT”“HOT”
The third wire is a The third wire is a neutral wireneutral wire
What do circuit breakers do?What do circuit breakers do?
The main circuit The main circuit breaker shuts off all breaker shuts off all the circuits in a the circuits in a home at oncehome at once
What do circuit breakers do?What do circuit breakers do?
Circuit breakers Circuit breakers connect branch connect branch circuits to the circuits to the electricity supply electricity supply at the service at the service panelpanel
What are branch circuits?
Branch circuits consist of lamps, lights, and outlets connected in parallel to a hot wire and a neutral wire
A ground wire is included as a safety feature
Proper use of
electricitygives many benefits
Proper use of
electricitygives many benefits
Improper use of
electricity can be hazardous
Improper use of
electricity can be hazardous
If you plan to dig near a buried electrical cable, it is best to call the local utility company first