Ch. 13 Basics of Electricity

Question 1

An insulator or _________________is a substance that does not easily transmit electricity.

Answer 1

nonconductor

Question 2

What electrical term is abbreviated as AC?

Answer 2

Alternating current

Question 3

What apparatus changes alternating current (AC) to direct current (DC)?

Answer 3

Rectifier

Question 4

The term used for measuring the strength of an electric current is:

Answer 4

ampere

Question 5

What unit of measure is equivalent to 1/1000 of an ampere?

Answer 5

Miliampere

Question 6

The term used for measuring the resistance of an electric current is:

Answer 6

ohm

Question 7

The term used for measuring how much electric energy is being used in one second is:

Answer 7

watt

Question 8

Which safety devices prevent the overheating of electric wires?

Answer 8

Fuses and circuit breakers

Question 9

Which apparatus conducts electric current from an electrotherapy device to the client’s skin?

Answer 9

Electrode

Question 10

A positive electrode is called an:

Answer 10

anode

Question 11

Commonly used modalities in cosmetology are Tesla high-frequency current, microcurrent, and:

Answer 11

galvanic current

Question 12

The process of introducing water-soluble products into the skin with the use of electric current is known as:

Answer 12

iontophoresis

Question 13

What process forces acidic substances into deeper tissues using galvanic current from the positive toward the negative pole?

Answer 13

Cataphoresis

Question 14

The process used to soften and emulsify grease deposits and blackheads in the hair follicles is called:

Answer 14

Desincrustation

Question 15

An extremely low level of electricity that mirrors the body’s natural electricity impulses is known as:

Answer 15

microcurrent

Question 16

What is the thermal or heat-producing current with a high rate of oscillation or vibration that is commonly used for scalp and facial treatments?

Answer 16

Violet ray

Question 17

An instrument producing moist, uniform heat that can be applied to the head or face is called a:

Answer 17

steamer

Question 18

The distance between two successive peaks of electromagnetic waves is called:

Answer 18

wavelength

Question 19

Thirty-five percent of natural sunlight is made up of:

Answer 19

visible light

Question 20

Ultraviolet rays, also known as cold light, make up________percent of natural light?

Answer 20

5

Question 21

The type of light blocked by the ozone layer is:

Answer 21

UVC

Question 22

Infrared lamps are primarily used during hair conditioning treatments and to:

Answer 22

process haircolor

Question 23

Laser is the acronym for:

Answer 23

Light Amplification Stimulation Emission of Radiation

Question 24

Removing blood vessels, disabling hair follicles, and eliminating some wrinkles may be accomplished using various________treatments

Answer 24

laser

Question 25

LED is the abbreviated version of____________, which is used in treatments to reduce acne and increase skin circulation.

Answer 25

light-emitting diode