Unit 7 Final Exam Review

Resistance is measured in a unit called the ____.

• ampere

• coulomb

• ohm

• volt

The statement that current is equal to the voltage difference divided by the resistance is known as ____.

• Einstein's equation

• Faraday's law

• Newton's law

• Ohm's law

A path that allows only one route for an electric current is called a ____.

• parallel circuit

• parallel current

• series circuit

• series current

Electric charge that has accumulated on an object is referred to as ____.

• circuit electricity

• current circuit

• current electricity

• static electricity

A circuit that has two or more branches for electrons to follow is a(n) ____.

• circuit diagram

• electron circuit

• parallel circuit

• series circuit

A material through which electrons do NOT easily flow is a(n) ____.

• conductor

• fuse

• insulator

• transformer

Lightning is ____.

• a buildup of neutrons

• harmless

• a high-voltage electric current

• a large discharge of static electricity

Which of the following is a device designed to open an overloaded circuit and prevent overheating?

• circuit breaker

• magnet

• resistor

• transformer

Current that does NOT reverse direction is called ____.

• alternating current

• circuit current

• direct current

• magnetic current

The location of the strongest magnetic forces is the ____.

• electromagnets

• magnetic domains

• magnetic fields

• magnetic poles