Chapter 13: Electricity 

________: the current in a circuit equals the voltage difference divided by the resistance.

________ contain particles called protons, neutrons, and electrons.

________: the tendency of a material to oppose the flow of electrons, changing electrical energy into thermal energy and light.

In a(n) ________, or any material, electrons are in constant motion in all directions.

________ are bound more tightly to some atoms and molecules.

A(n) ________ consists of two electrodes surrounded by a material called an electrolyte.

A(n) ________ can provide the voltage difference that is needed to keep current flowing in a circuit.

________ have much less resistance than insulators.

________: A material in which electrons are not able to move easily.

Positive and ________ exert forces on each other.

________ is an excellent conductor and has low resistance to the flow of electrons.

In ________, the current follows more than one path.

________ in batteries produce a voltage difference between the positive and negative terminals.

________: A closed path that electric current follows.

The ________ coating around wires is an insulator.

Houses, automobiles, and most electrical systems use ________ so individual parts can be turned off without affecting the entire circuit.

________ have positive electric charge and electrons have negative electric charge.

A(n) ________ provides only one path for the current to follow.

Rubbing two materials together can result in a(n) ________.

The ________ of most materials usually increases as the temperature of the material increases.

The ________ between two surfaces in contact is due to the attractive electric forces between the atoms on the two surfaces.

The ________ can be detected by an electroscope.

________: The accumulation of excess electric charge on an object.

________: related to the force that causes electric charges to flow.

________ is measured in amperes.

The movement of an electron in an electric current is similar to a ball bouncing down a(n) ________.

A(n) ________ contains a piece of metal that bends when the current in it is so large that it gets hot.

A(n) ________ contains several wet cells connected together.

________ is a large, neutral object that is also a conductor of charge.

________ is measured in volts.

________ are used in flashlights and some holiday lights.

________: contain two or more branches for current to move through.

The ________ is called a dry ________ because the electrolyte is a moist paste, not a liquid solution.

________: the current has only one loop to flow through.

The accumulation of excess electric charge on an object

Charge can be transferred from object to object, but it cannot be created or destroyed

A material in which electrons are able to move easily

A material in which electrons are not able to move easily

The process of transferring charge by touching or rubbing

The rearrangement of electrons on a neutral object caused by a nearby charged object

The net movement of electric charges in a single direction

A closed path that electric current follows

the tendency of a material to oppose the flow of electrons, changing electrical energy into thermal energy and light

the current in a circuit equals the voltage difference divided by the resistance

contain two or more branches for current to move through

The rate at which electrical energy is converted to another form of energy