Physics 2 week 2 test 1

The study of stationary electric charges is

• electromagnetism

• electrodynamics

• electronics

• electrostatics

The study of electric charges in motion is

• electromagnetism

• electrodynamics

• electronics

• electrostatics

Electricity is typically thought to be the same as

• electromagnetism

• electrodynamics

• electronics

• electrostatics

The unit of measurement of electrical charges (SI) is

• Watt

• Joule

• Newton

• Coulomb

One Coulomb is equal to the electrical charge of 6.25 × 10^18

• electrons

• protons

• neutrons

• nuclei

A material that has a large number of free electrons is a:

• good insulator

• good conductor

• poor conductor

• All of these

Which of the following is NOT a correct law of electrostatics:

• like charges repel

• unlike charges attract

• electric charges reside only on the internal surface of conductors

• all of these are laws of electrostatics

As two charges get closer, the electrostatic force:

• is directly proportional to the amount of distance between them

• is inversely proportional to the amount of distance between them

• is inversely proportional to the square of the distance between them

• is directly proportional to the square of the distance between them

If a conductor is curved, the greatest amount of charge will be found:

• at the beginning of the conductor

• at the end of the conductor

• at the area of the greatest curvature of the conductor

• along the straightest area of the conductor

Rubbing a rubber rod with fur is an example of electrification by

• contact

• friction

• induction