Electric Circuits & Basics

Copper is used in wiring because it is an excellent______________ of electricity.

• circuit breaker
• conductor
• insulator
• fuse

A material in which electrons are not able to move easily is called

• Insulators

• Conductors

What is the flow of electric charges called?

• voltage

• current

• resistance

• electricity

A closed path that electric current flows is a

• circuit
• series circuit
• parallel circuit

What is the unit of measurement for current

• Ohm's

• Ampheres

• Volts

What it the formula to find voltage. 

• I= V/R
• R=V/I
• V= I x R 

Which material is an insulator?

• gold
• copper
• plastic

Why do electricians always wrap copper wires in plastic or rubber?

• Plastic and rubber come in many different colors

• Plastic and rubber are good electrical conductors

• Plastic and rubber make the wires easy to bend

• Plastic and rubber are good electrical insulators

The relationship between voltage, current, and resistance is described by....

• Bohr's Law

• Ohm's Law

• Kirkchoff's Law

• Lorentz' Law

The massive center of an atom contains protons and neutrons. What is this called?

• Orbital Shell

• Electron Cloud

• Nucleus

• Photon