Chapter 8: Basics of Electricity

what is blue light LED therapy used to treat? A: hyperpigmentation B: light spider veins C: acne D: poor circulation

Acne

What is a rectifier? A: apparatus that changes alternating current to direct current B: substance that does not easily transmit electricity C: applicator for directing electric current from a machine to the skin D: apparatus that changes direct current to alternating current

Apparatus that changes alternating current to direct current

What term refers to the electrode used on the treatment area? A: active electrode B: inactive electrode C: anode D: ampere

active electrode

What term refers to infusing a negative (alkaline) product into the skin? A: ionization B: desincrustation C: cataphoresis D: anaphoresis

anaphoresis

What color LED is used on clients with hyperpigmentation or for detoxifying the skin? A: blue B: green C: red D: yellow

green

What is a light device that uses multiple colors and wavelengths of focused light to treat conditions including spider veins, hyperpigmentation, and excessive hair? A: alternating pulse light B: extreme pulse light C: intense pulse light D: radiating pulse light

intense pulse light

What are infrared light rays? A: invisible rays with short wavelengths B: invisible rays with long wavelengths C: visible rays with short wavelengths D: visible rays with long wavelengths

invisible rays with long wavelengths

What is the process of introducing water-soluble products into the skin with the use of electric current? A: desincrustation B: ionization C: light therapy D: photothermolysis

ionization

What is the application of light rays to the skin for the treatment of acne, wrinkles, capillaries, pigmentation, and hair removal called? A: electric therapy B: florescent therapy C: incandescent therapy D: light therapy

light therapy

A milliampere is what fraction of an ampere? A: one-tenth B: one-hundredth C: one-thousandth D: one-millionth

one-thousandth

What does a fuse do? A: prevents excessive current from passing through a circuit B: connects an apparatus to an electrical outlet C: changes direct current to alternating current D: changes alternating current to direct current

prevents excessive current from passing through a circuit

What color LED is used to stimulate circulation and improve collagen and elastin production? A: yellow B: red C: green D: blue

red

What is an insulator? A: substance that only transmits alternating current B: substance that only transmits direct current C: substance that transmits any type of electrical current easily D: substance that does not easily transmit electricity

substance that does not easily transmit electricity

What is thermal or heat-producing current with a high rate of oscillation or vibration A: alternating current B: direct current C: galvanic current D: tesla high-frequency current

tesla high-frequency current

What is electricity? A: rapid and interrupted current B: the movement of particles around an atom that creates pure energy C: constant, even-flowing curent D: the process by which light from a laser is turned into heat

the movement of particles around an atom that creates pure energy

How many type of electromagnetic radiation make up natural sunlight? A: three B: six C: 10 D: 20

three

How many methods for applying high-frequency current are there? A: two B: four C: six D: eight

two

What is an ampere? A: unit that measures the resistance of an electric current B: unit that measures the amount of an electric current C: unit that measures the force pushing electrons through a conductor D: measurement of how much electric energy is being used in one second

unit that measures the amount of an electric current

What should you do with an electrical device if the connection gets hot? A: pour water on the connection to cool it down B: turn the device on and off a few times before resuming your work C: turn the device down to a lower setting so it cools down D: unplug the device

unplug the device

What is the primary light source used in facial and scalp treatments? A: blue light B: invisible light C: red light D: visible light

visible light

What is the unit that measures the pressure or force that pushes the flow of electrons forward through a conductor? A: ohm B: volt C: watt D: wavelength

volt

What term refers to the distance between two successive peaks of electromagnetic waves? A: ohm B: volt C: watt D: wavelength

wavelength

What color LED aids in reducing inflammation and swelling? A: blue B: green C: red D: yellow

yellow

What is the word laser an acronym for? A: light application of stimulated electronic radiation B: light amplification stimulation emission of radiation C: long application of sustained electronic radiation D: long amplification system for exposure to radiation

Light amplification stimulation emission of radiation

What is the unit that measures the resistance of an electric current? A: wavelength B: watt C: volt D: ohm

Ohm

What color LED is used to increase cellular processes? A: blue light B: green light C: red light D: yellow light

Red light

What does a circuit breaker do? A: changes direct current to alternating current B: changes alternating current to direct current C: connects an apparatus to an electrical outlet D: shuts off an electrical current at the first indication of overload

Shuts off an electric current at the first indication of overload

What type of ultraviolet radiation is used in tanning beds? A: UVA B: UVB C: UVC D: UVD

UVA

Which type of ultraviolet (UV) radiation is often called the burning light? A: UVD B: UVC C: UVB D: UVA

UVB

What is the most dangerous type of ultraviolet (UV) radiation? A: UVA B: UVB C: UVC D: UVD

UVC

What is chromophore? A: the color signature of a light ray B: a color component within the skin C: the color designation in hair D: a system for matching colors

a color component within the skin

What term refers to a negative electrode? A: cathode B: anode C: cataphoresis D: anaphoresis

cathode

What is the path of an electric current from the generating source through conductors and back to its original source? A: microcurrent B: wavelength C: complete circuit D: galvanic current

complete circuit

What are modalities? A: different types of light used in esthetics B: currents used in electrical facial and scalp treatments C: assorted approaches to handling electricity in the salon D: water-based substances used in electrotherapy

currents used in electrical facial and scalp treatments

Galvanic current is what type of current? A: alternating B: direct C: micro D: Tesla high-frequency

direct

What is a form of energy that travels through space in waves and has both electric and magnetic components? A: electromagnetic band B: electromagnetic spectrum C: magnoelectric spectrum D: magnoelectric band

electromagnetic spectrum

What is the use of electrical devices for therapeutic benefits called? A: electrical therapy B: electronic therapy C: electrotherapy D: therapeutic electricity

electrotherapy