Electricity 101

The word "electricity" has its roots from the Greek word "elektron" which means

• conductor

• amber

• spark

• magnet

Which of the following is NOT a fundamental force of nature?

• gravitational

• electromagnetic

• weak

• energy

He is the first person to differentiate between a positive and negative charge.

• MIchael Faraday

• Alessandro Volta

• Benjamin Franklin

• Andre Ampere

The net charge of a closed system NEVER changes.

• True

• False

The electric field is strong where field lines are

• close

  together

• far apart.

• evenly distributed

• depends on the medium

Field lines start on _____ charges and end on _____ charges.

• positive, negative

• negative, positive

• positive, positive

• positive, negative

The SI Unit for Electric Force is

• Coulomb

• Newton per Coulomb

• Newton per Square Coulomb

• Newton

Field lines never cross.

• True

• False

If the ion has more electrons than protons, it is called a/an

• anion

• cation

• isotope

• dipole

Ohm's Law is stated as

• R = I/V

• V = IR

• I = VR

• I = R/V