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Physical Science 10

QuestionAnswer
Electricity movement of electrons
Static electricity accumulation of extra electric changes on an object
Law of charges opposites attract; like charges repel and unlike charges attract
Charging by friction (contact) materials with a weak affinity for electrons can easily lose electrons by friction or simple rubbing
Charging by induction creating a temporary charge on an object by exposing it to a charged object
Circuit closed pat that electric current follows
Voltage potential electrical energy
Current amount of electrons flowing through the wire
Resistance friction force on the electron flow
Battery source of electricity that provides electrons from a chemical reaction (acts as an “electron pump”)
Dry cell battery electrons flow from the zinc container through a circuit and back to the carbon rod in the center of the battery
Wet cell battery contains two plates of different metals (lead and lead dioxide) in a conducting solution (sulfuric acid)
Generator uses electrical and magnetic energy for continuous electricity (AC or DC) and is powered by wind/water/
Electrostatic force a field force created by the attraction or repulsion of opposite charges
Conductors have little resistance to electron motion and allows electrons to move easily.
Insulators have high resistance of electron motion and does not allow electrons to move easily.
Semiconductors allows limited electron flow only under certain conditions
Sink electrical ground or something that “absorbs” the electrons
Series circuit have loads connected right after another and has a single path. If one load goes out  they all go out
Parallel circuit have the loads connected in separate branches and has multiple paths. If one load goes out the others still work
Electrical charges (6.24 x 10 to the 18th electrons) coulombs
Voltage potential difference volts
Current amps (amperes)
Resistance ohms
Power watts
P V*I
V I*R
Created by: Crayford