Electricity and Magnetism

Atoms contain charged particles called

• protons, neutrons, and electrons

• protons and electrons

• protons and neutrons

• electrons and neutrons

A region around a charged object where the object’s electric force is exerted on other charged objects is an electric

• field

• outlet

• socket

• power plant

In static electricity, charges

• flow continuously

• flow intermittently

• build up in an atom

• build up on an object

Charges can redistribute themselves by friction, conduction, polarization, or

• reduction

• production

• induction

• superconduction

The unit for the rate of current is the

• ampere

• volt

• ohm

• joule

Potential electric current can be converted into

• heat

• matter

• water

• food

All electrical devices contain electric

• matter

• gears

• circuits

• motors

Which of the following does not determine the resistance of a wire?

• temperature

• diameter

• length

• color

When more branches are added to a parallel circuit,

• resistance increases

• voltage increases

• resistance decreases

• voltage decreases

The path of current in a circuit is completed by

• a transformer

• an energy source

• conducting wires

• an electrical device