Physics Regents Review - Electricity

Alex Declan
Flashcards by Alex Declan, updated more than 1 year ago
Alex Declan
Created by Alex Declan over 6 years ago


Some key things you need to know in the electricity unit for the physics regents.

Resource summary

Question Answer
The unit which describes electric current in terms of how much charge passes a given point in a conductor is called the _____________, which is represented by _______________. Ampere, circle with an A in it.
In order for current to flow in a wire there must be a complete circuit, and a ________ _________, or ___________. Potential Difference, voltage v
Metals and other materials with many free electrons are called ________, because they allow current to pass easily. Conductors
Things that don’t allow current to pass easily, like glass, rubber, and plastic, are called _______________. Insulators
Resistance The measurement of how easily current flows through a conductor.
Generally, resistance decreases when a conductor’s length__________, diameter ____________, and temperature ___________. Decreases, increases, decreases
In parallel circuits, the total resistance is always ______ than the smallest resistor. less
Power = ? Volts * Amps
The power used through time is found by multiplying ________ and __________, and is expressed in __________. Power, Time, Joules
Watt The unit of electrical power.
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