Chapter 6: Electricity Flashcards

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0
Q

Electric Field

A

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

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1
Q

Electric Force

A

The force between charged objects

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2
Q

Static Electricity

A

A buildup of charges on an object.

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3
Q

Conservation of Charge

A

The law that states that charges are neither created nor destroyed.

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4
Q

Friction

A
  1. The force that two surfaces exert on each other when they rub against each other. 2. The transfer of electrons from one uncharged object to another uncharged object by rubbing.
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5
Q

Conduction

A
  1. The transfer of thermal energy from one particle of matter to another. 2. A method of charging an object by allowing electrons to flow from one object to another object through direct contact.
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6
Q

Induction

A

A method of redistributing the charge on an object by means of the electric field of another object; the objects have no direct contact.

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7
Q

Polarization

A

The process through which electrons are attracted to or repelled by an external electric field, causing the electrons to move within their own atoms.

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8
Q

Static Discharge

A

The loss of static electricity as electric charges transfer from one object to another.

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9
Q

Electric Current

A

The continuous flow of electric charges through a material.

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10
Q

Electric Circuit

A

A complete, unbroken path through which electric charges can flow.

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11
Q

Conductor

A
  1. A material that conducts heat well. 2. A material that allows electric charges to flow.
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12
Q

Insulator

A
  1. A material that does not conduct heat well. 2. A material that does not easily allow electric charges to flow.
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13
Q

Voltage

A

The difference in electrical potential energy per charge between two places in a circuit.

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14
Q

Resistance

A

The measurement of how difficult it is for charges to flow through an object.

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15
Q

Ohm’s law

A

The law that states that resistance in a circuit is equal to voltage divided by current.

16
Q

Series Circuit

A

An electric circuit in which all parts are connected one after another along one path.

17
Q

Parallel Circuit

A

An electric circuit in which different parts of the circuit are on separate branches.

18
Q

Power

A

The rate at which one form of energy is transformed into another.

19
Q

Short Circuit

A

A connection that allows current to take the path of least resistance.

20
Q

Third Prong

A

The round prong of a plug that connects any metal pieces in an appliance to the safety grounding wire of a building.

21
Q

Grounded

A

Allowing charges to flow directly from the circuit into the building’s ground wire and then into Earth in the event of a short circuit.

22
Q

Fuse

A

A safety device with a thin metal strip that will melt if too much current passes through a circuit.

23
Q

Circuit Breaker

A

A reusable safety switch that breaks the circuit when the current becomes too high.