Electricity and Magnetism

The tendency for a material to oppose the flow of electrons is _____.

• current

• resistance

• conductor

• voltage

Resistance is measured in a unit called _____.

• ampere

• ohm

• volt

• coulomb

A material that allows the free flow of electric charges.

• Conductor

• Insulator

• Semiconductor

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V

• 10 V

• 2.5 V

• 0.4 V

Formula for Ohm's Law.

• I = VR

• R = VI

• V = IR

What is a form of energy resulting from the existence of charged particles such as electrons and protons?

• Electricity

• Resistance

• Insulator

• Gravity

What is a flow of electrons moving through a conductor or space?

• Current

• Conductor

• Static

• Electric Field

What is a path that starts and stops at the same place?

• Current

• Resistance

• Static

• Circuit

An example of a ferromagnetic material is

• copper

• wood

• cheese

• nickel

The region in which a magnetic force acts is called a

• line of force

• pole

• magnetic field

• field of attractio