Electric Forces, Fields, & Charges

Front

What type of charge transfer occurs when a plastic comb is run through dry hair?

Back

Friction

Front

TRUE or FALSE: The electric field lines for a positive charge are always directed away from the charge.

Back

True

Front

At which point is the electric field the strongest?

Back

Point B

Front

An electrostatic force of 2 X 10^2 N is exerted on a charge of 4 Coulombs at point P in an electric field. What is the magnitude of the electric field intensity at P?

Back

50 N/C

Front

What does it mean when the electric field lines are close together?

Back

The field is strong.

Front

Define electric charge.

Back

A property of matter that causes it to experience a force when placed in an electromagnetic field.

Front

What is Coulomb's Law?

Back

The law stating that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Front

What is an electric field?

Back

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

Front

What is the unit of electric field intensity?

Back

N/C (Newtons per Coulomb).

Front

What happens to the electric field strength as you move away from a point charge?

Back

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