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Electricity P. 10-15

Review - Electricity Pages 10-15

QuestionAnswer
energy made available by the flow of electric charge through a conductor electrical energy
temporary magnet made when electric current flows through a wire wrapped around an iron core electromagnet
device that changes electrical energy into mechanical energy electric motor
device that changes mechanical energy into electrical energy generator
unit used to measure the energy used by an appliance in a certain amount of time watt
Electric current can be used to make a _____. magnet
Electromagnets are used in _____ and _____ and even some _____. doorbells/phones/trains
An electromagnet can be made stronger by wrapping more loops of _____ around the _____. wire/rod
One source of mechanical energy is moving _____. Another source is _____ made by burning coal, gas, or oil. water/steam
Electricians work with _____. electricity
Electricians put in and repair electric _____ , _____ , and _____ in buildings. wires/switches/outlets
A way to save electricity is by turning the lights _____ in rooms you are not using. off
Light bulbs are marked with a number of _____. watts
We use units called watts to measure how _____ appliances use electrical energy. The amount of energy we use depends on how _____ we use an appliance. quickly/long
Suppose a person uses a 27-inch color television for 2 hours, and the amount of watts used for an hour is 113 watts. How many watt-hours of energy will be used in two hours? 113 watts X 2 hours = 226 watt-hours
Created by: maryellson
 

 



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