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Science chapter 6

Lesson 4

TermDefinition
How do you calculate electric power? power=voltage x current
Power rate at which energy is transformed from one form to annother/ unit is the watt
How do you calculate electric energy energy=power x time
Kilowatt-hours unit of electric energy / kilowatt x hours
How can electric shocks be prevented? shocks can be prevented with devices that redirect current or break circuits
Short circuit is a connection that allows current to take the path of least resistance
Ground wires connect the circuits in a building directly to earth, giving charges an alternate path in an event of a short circuit
Third prong connects any metal pieces in an appliance to the safety grounding wire of a building
Fuses are devices that melt if they get too hot
Circuit Breakers are switches that will bend away from circuits as they heat up / can reset
Grounded any circuit connected to earths with a third prong
Created by: Ella!!

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