Electricity Flashcards

1
Q

Conductor

A

An object that allows charges to flow freely (many metals)

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2
Q

Insulator

A

An object that hinders the flow of charge (such as wood, plastic, and rubber)

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3
Q

Electric Charge

A

Occurs when an object gains/loses e-. Object becomes +/- charge by losing/gaining e-.

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4
Q

Coulombs (C)

A

1e=1.6x10^-19 C or 1C=6.25x10^18e

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5
Q

Electric Field

A

The space around a charged object where forces of attraction/repulsion occur. Shown using arrows. Arrows show direction that a +charge would move. Distance between lines indicate field strength.

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6
Q

Coulomb’s Law

A

The magnitude of an electric force between 2 objects varies directly with the product of their masses and inversely with the square of the distance between their centers.

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7
Q

I=q/t

A

I= current in amperes (A), q= amount of charge in coulombs (C), t= time in seconds.

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8
Q

Electrical Potential Difference

A

Amount of work required per unit charge to move one unit of positive charge between two points in a circuit. Measured in volts (v) 1v= 1J/1C
Equation: E = VIt

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9
Q

Fundamental Laws of Electric Charge

A

Opposites charges attract, similar charges repel, charged objects will attract some neutral objects.

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