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1PElectricity Review

Terms for 1P Electricity

QuestionAnswer
Like charges Charges that will repel
Unlike charge Charges that will attract
Static electricity The buildup of charges on an object which do not flow
Friction The transfer of electrons from one object to another by rubbing
Conduction The tranfer of electrons from one object to another by direct contact
Law of conservation of charge Electrons are not created or destroyed they are only transferred from one location to another
Static cling Static electricity that causes clothes to stick together and is what enables plastic wrap to cling
Static discharge The loss of static electricity as electric charges move off an object
Lightning a discharge of static electricity between clouds and the earth
Pith Ball A device used to detect static charge
Potential difference The difference in electrical potential between two places which pushes charge through a circuit
Voltage Another name for the potential difference, measured by a voltmeter
Volt The unit of measure for the potential difference
Batteries and generators Voltage sources
Resistance The opposition to the movement of electric charges flowing through a material
Ammeter An instrument used to measure current
Amps The unit used to measure current
Ohm's Law The resistance is equal to the voltage divided by the current
Series circuit An electric circuit with a single path
Parallel circuit An electric circuit with multiple paths
Short circuit A connection that allows current to take an unintended path.
Conductor A material through which electrons move freely, forming an electric current
Electric circuit A complete path through which electric charges can flow
Electric current The flow of electric charges through a material
Grounded Allowing charges to flow directly from the circuit to the ground connection
Insulator A material through which the charges of an electric current are not able to move
Third prong Part of a plug which connects the metal shell of an appliance to the safety grounding wire of a building
wet cell An electrochemical cell in which the electrolyte is a liquid
dry cell An electrochemical cell in which the electrolyte is a paste
Van de Graaff generator a device which produces static electricity using a rubberband like belt
Lightning rod A metal rod mounted on the roof of a building in order to protect a building
Fuse/ circuit breaker Devices added to a circuit to prevent overheating
Ohm The unit of measure for resistance
electricity form of energy which can travel along conductors
charged particles paraticles that carry electricity
matter either solid, liquid or gas, that which has mass and occupies space
atoms extremely small particles which all matter is made up of
electrons negatively charged particles which orbit the nucleus of an atom
neutrons neutrally charged paricles which are contained in the nucleus of the atom
protons positively charged particles which are contained in the nucleus of the atom
nucleus central core of an atom containing protons and neutrons
conductors objects that electricity is allowed to pass through
insulators objects that do not allow electrons to travel thourh
negatively charged objects that have gained electrons making them... _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
positively charged objects that have lost electrons making them _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
circuit complete conducting loop where all components are linked together
free electrons electrons which are able to to transfer through a substance
circuit diagram simple way of drawing electrical circuits
terminal point of attachment for wires to a battery or meter
current the flow of electrons around a conducting circuit
energy supplier an object such as a battery, power pack or the wall socket w_ _ _ s _ _ _ _ _ _ _
components objects which are part of an electrical circuit, lanp, battery, resistor etc
energy user object which converts electrical energy into other forms e _ _ _ _ _ u _ _ _
alternating current AC current that keeps changing direction
direct current DC current which travels in one direction only
voltage gain/loss the loss or gain of energy by the current v_ _ _ _ _ g_ _ _ /l _ _ _
volt unit of voltage gain or loss
ammeter meter used to measure the size of a current
voltmeter meter used to measure the gain or loss of _ _ _ _ _ _ _
fuse a thin wire which melts if the current is too large
resistance property which makes it hard for electrons to pass _ _ _ _ _ _ _ _ _ _
resistor a component used to limit the current in a branch/part of a circuit
voltage energy gained or lost by the circuit
power total amount of energy supplied or used per second
watt unit of power
Created by: mrohrling