AP Physics 2: Electric Fields

Front

What happens to the electric field strength as the distance between two charged objects decreases?

Back

The strength increases.

Front

What charge must be placed on a 0.120 g styrofoam ball in a 6000 N/C electric field for it to be suspended?

Back

-196 nC.

Front

In what direction does a negatively charged particle accelerate in an electric field?

Back

In the opposite direction as the field.

Front

Where is the electric field the strongest in a given configuration?

Back

At point B.

Front

What is the electric field inside a spherical shell of uniform surface charge density?

Back

Zero.

Front

Define electric field.

Back

A region around a charged object where other charged objects experience a force.

Front

What is the formula for calculating electric field strength (E)?

Back

E = F/q, where F is the force and q is the charge.

Front

What is the relationship between electric field and distance from a point charge?

Back

The electric field strength decreases with the square of the distance from the charge.

Front

What is the principle of superposition in electric fields?

Back

The total electric field is the vector sum of the electric fields due to individual charges.

Front

What is the unit of electric field strength?

Back

Newtons per Coulomb (N/C).