Chapter 4 Electricity Flash Cards

Front 1

Electricity

Back 1

A form of energy that produces light, magnetic and chemical changes.

Front 2

Electric Current

Back 2

The movement of electricity along a path called a conductor.

Front 3

Load

Back 3

The technical name for any electrically powered appliance.

Front 4

Conductor

Back 4

A material that allows electrically to flow through it easily.

Front 5

Insulator

Back 5

A material that does not allow the flow of electric current.

Front 6

Amp

Back 6

A unit of electric strength.

Front 7

Volt

Back 7

A unit of electric pressure.

Front 8

Ohm

Back 8

A unit of electric resistance.

Front 9

Watt

Back 9

A measure of how much electrical energy is being used.

Front 10

Electrotherapy

Back 10

The application of electrical currents during treatments to the skin.

Front 11

Direct Current (DC)

Back 11

Current in which electrons move at an even rate and flow in only one direction.

Front 12

Alternating Current (AC)

Back 12

Current in which electrons flow first in one direction then in the other.

Front 13

Battery

Back 13

Have a positive terminal (+) and a negative terminal (-) and produces direct current only.

Front 14

Generator

Back 14

Produce alternating current.

Front 15

Frequency

Back 15

Number of times cycling occurs per second.

Front 16

Circuit

Back 16

Closed path, through which electrons travel.

Front 17

Closed Path

Back 17

A path on which the electrons leave the source and operate an appliance.

Front 18

Open Circuit

Back 18

Broken path

Front 19

Overload

Back 19

When more current flows than the line is designed to carry.

Front 20

Short Circuit

Back 20

Occur any time a "foreign conductor" comes in contact with a wire carrying current to a load.

Front 21

Fuse

Back 21

A device that contains a fine metal wire that allows current to flow through it.

Front 22

Circuit Breaker

Back 22

Simply a reusable device that breaks the flow of current when an overload occurs.

Front 23

Grounding Wire

Back 23

Designed to protect you when operating certain kinds of appliances.

Front 24

Local Shock

Back 24

Passes through a small part of the body, causing burns and muscle contractions.

Front 25

General Shock

Back 25

Passes through the nervous system

Front 26

Electrochemical Effects

Back 26

Created when electric current travels through water-based solution in order to produce relaxing or stimulating results.

Front 27

Electrotherapy

Back 27

The application of special currents that have certain effects on the skin

Front 28

Galvanic Current

Back 28

A direct current of low voltage and high amperage. Has chemical effects that are caused by passing the current through particular acid or alkaline solutions or by passing the current through body tissue and fluids.

Front 29

Phoresis

Back 29

Process of forcing an acid or alkali into the skin by applying current to the chemical .

Front 30

Anaphoresis

Back 30

Use a negative pole or electrode to force negatively charged solutions into the skin without breaking the skin.

Front 31

Cataphoresis

Back 31

Uses a positive pole of electrode to force positively charged solutions into the skin without breaking the skin.

Front 32

Iontophoresis

Back 32

Introduces water-soluble treatment products to the skin.

Front 33

Faradic Current

Back 33

An alternating current, interrupted to produce a mechanical, non chemical reaction. It also stimulates the nerve and muscle tissue.

Front 34

Sinusoidal Current

Back 34

An alternating current with a mechanical effect, like the Faradic current that produces muscle contractions.

Front 35

Tesla Current

Back 35

Known as the "violet ray" it is a alternating current. It can be adjusted to different voltages to produce heat.

Front 36

Light Therapy

Back 36

Th production of beneficial effects such as reducing acne through treatments using light rays or waves.

Front 37

Visible Light

Back 37

The portion of the electromagnetic spectrums humans can see.

Front 38

Fluorescent Light

Back 38

Economical and long-lasting light source. It can create blue or cool tones.

Front 39

Incandescent Light

Back 39

It is ordinary light bulb. Produces redder tones or warmer casts. Closer to natural sunlight.

Front 40

Infrared Light

Back 40

Produce pure heat rays. It increases circulation and skin gland secretions. It also relaxes muscles and stimulates the cell and tissue activity.

Front 41

Ultraviolet Light

Back 41

Known as actinic rays. They have shorter wavelength and can be more damaging than the infrared rays. It produces both a positive and negative effects on the skin depending on the exposure time. It also can kill bacteria that causes skin infections.