Electricity

Chemical reactions

Chemical reactions

________ use up materials in primary cells as electrons flow from them, thus the cell can be permanently discharged.

Ohmmeter

________: a device that is used to measure resistanceExamples: Lightweight carbon resistors are used in electronics.

Temperature

________: Resistance increases when electrons bump into atoms as they move through a material.

Insulator

________: a material that that does not allow the movement of electrons through it.

Electrons

________ move back and forth, changing their direction.

Electric charge

________ can be given to a neutral object by touching it with a charged object.

Neutral objects

________: have an equal number of p+ and e-

Lightweight carbon resistors

Ohmmeter: a device that is used to measure resistanceExamples: ________ are used in electronics.

Resistor

________: a device that reduces the flow of electric current.

strength of the electric force

The ________ is related to.

Electrodes

________ are conductors- one is positively charged and the other is negatively charged.

Heavier ceramic resistors

What are used in larger circuits? Answer with a single words or term.

Thicker wires

________ have less internal resistance than thinner ones.

Electrical Resistance

________: the ability of a material to oppose the flow of electric current; measured in ohms.

Electric Cell

________: a device that converts chemical energy into electrical energy.

Primary Cell

________: an electric cell that may only be used once.

Wet Cells consist of metal conductors

________ placed in contact with a conducting liquid.

Secondary Cell

________: an electric cell that can be rechargedTypes of Primary Cells.

neutral object

The ________ has the OPPOSITE charge as the object that induced it.Charging by Friction.

Primary cells

________ fall into 2 categories: dry cells and wet cells.

neutral object

The ________ becomes temporarily charged (electrons move around)

Neutral objects

What are attracted to charged objects Electric Charge? Answer with a single words or term.