Vocabulary
An unbalanced negative or positive electric charge on an object is sometimes referred to as this.
What is static charge? Pg. 680
___, ____, and ____ make up an atom.
What is protons, neutrons, and electrons? Pg. 679
The SI unit for electric current.
What is the ampere or amps? Pg. 691
Three common parts of most electric circuits are these.
What is a source of electric energy, electrical devices that transform the energy, and conductors? Pg. 699
A material in which electrons cannot easily move.
What is an electric insulator? Pg. 682
When electrons concentrate at one end of an object, the object is referred to as this.
What is polarized? Pg.683
The region surrounding a charged object is called this.
What is an electric field? Pg. 680
The ____ measured across a portion of a circuit indicates how much energy transforms in that portion of a circuit.
What is voltage? Pg. 693
True or false: Batteries supply electric energy.
What is true? Pg. 700
True or false: Electrons transfer between objects by contact, induction, or conduction.
What is true? Pg. 682
A measure of how difficult it is for an electric current to flow in a material.
What is electric resistance? Pg. 692
The process of an unbalanced electric charge becoming balanced is referred to as this.
What is electric discharge? Pg. 685
What is Ohm's law? Pg. 694
The amount of current in a circuit depends on the ____ of devices in a circuit.
What is number? Pg. 701
A process by which one object causes two other objects that are conductors to become charged without touching them.
What is transferring charge by induction? Pg. 683
A mathmatical equation that describes the relationships among voltage, current, and resistance.
What is Ohm's law? Pg. 694
_____ is one of the most unpredictable forces in nature.
What is lighting? Pg. 686
The conversion of one form of energy to another.
What is energy transformation? Pg. 695
If any of the paths of a parallel circuit is broken, this can still flow through the other devices.
What is current? Pg. 702
These are good electric insulators.
What is glass, rubber wood, and air? Pg. 682
An electric circuit with more than one path, or branch, for an electric current to follow.
What is a parallel circuit? Pg. 702
Where does the word electric originate from and what word is it from?
What is Greek? What is elektron? Pg. 685
The movement of electrons in a lighting strike lasts only a ____ of a second.
What is fraction? Pg. 690
Current as small as this Amps can produce a painful shock.
What is 0.01? Pg. 704
True or false: Forecasting exactly where and when a lightining will strike might never be possible.
What is true? Pg. 685