PracticeQuiz3Y

Gaussian surface

An imaginary surface through which flux is calculated to apply Gauss's law.

Electric flux (ΦE)

A measure of the number of electric field lines passing through a given area.

Electric potential (V)

The amount of work needed to move a unit charge from a reference point to a specific point inside the field without producing any acceleration.

Escape speed

The minimum speed needed for an object to break free from the gravitational attraction of a massive body.

Capacitance (C)

The ability of a system to store charge per unit voltage.

Significant figures (sig. figs.)

The digits in a number that are important in terms of accuracy or precision.

Partial credit

Points awarded for correct parts of a solution in problems where the answer is partially correct.

Electrostatic potential energy

The work done to assemble a system of charges from infinity.

Point charge

An idealized model of a charged object with negligible size, allowing the use of Coulomb's law.

Sign convention

The agreed-upon rules for assigning positive or negative values to physical quantities.