PHYSICS II

Electrostatics

Study of electricity at rest

Conductor

Substance through which electrical current flows with small resistance, and readily allowed the flow of charge.

Insulator

a substance with extremely high resistance to the flow of charge.

Coloumb

SI unit of electric charge.

Charging by friction

Charging by rubbing one object against another

Charging by conduction

Charging by physical contact.

Charging by induction

Charging an object without contact.

Electronegativity

a measure of the attraction of an atom to an electron to an electron/the tendency of an atom to become negatively charged.

Triboelectric Series

a ranking of some common materials based on their electron affinity.

Coloumb’s Law

It states the force of attraction or repulsion acting along a straight line between two electric charges is directly proportional to the product of the charges and inversely to the square of the distance between them.

Superposition Principle

It states that each charge will exert a force on another charge as if no other charges are present.

Conservation of Charge

States that the total number of charge among the objects is the same before and after contact.

Grounding

A method used to charge an object without actually touching the object to any other object.