Electricity

1,000 watts =

1 kilowatt

A salon owner wants to balance the tones of light in the salon. Which type of light would likely be incorporated?

incandescent

An alternating current that can be adjusted to different voltages to produce heat is:

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high-frequency

Another name for microcurrent is:

sinusoidal

Bacteria that cause skin infections can be killed by:

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ultraviolet light

Before using ultraviolet light on a client, the skin or scalp should be:

cleansed

Depending on its design, which type of light can create blue or cool tones?

fluorescent

During scalp and facial massage, EMS Current is used chiefly to cause:

muscle contractions

Electric current in a conductor causes heat by:

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increasing the resistance in the line

Electric Muscle Stimulation (EMS), in which a salon professional usually wears a wrist band with a moistened electrode, is known as the:

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indirect method

EMS is an alternating current used chiefly during scalp and facial massage to cause:

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muscle contractions

High-frequency current is an alternating current that can be adjusted to different voltages to produce heat and is also known as:

Tesla

How does a cold setting work on a blow dryer?

stops all flow of current to the heating element but still allows current to flow to the blower

If a cream is used during scalp or other high-frequency treatments, be sure the cream contains no:

alcohol

If the client is holding the active electrode while the salon professional manually stimulates the area being treated, what method of high-frequency current is being used?

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indirect application

Incandescent light normally produces what color tones in the objects it lights?

redder tones

LED devices using blue light help:

reduce acne

Microcurrent treatment should never exceed:

30 minutes

Over half of sunlight is composed of invisible rays beyond red, which are called:

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infrared rays

Select the longest wavelength from the following list:

infrared rays

Small doses of ultraviolet light may help the body produce:

vitamin D

The application of a specific electric current or piece of equipment for corrective and therapeutic benefits on the skin is called:

electrotherapy

The application of special currents that have a variety of effects on the skin is called:

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electrotherapy

The chemical breakdown of the skin caused by intense heat is called:

pyrolysis

The direct current used in electrotherapy treatments is:

galvanic

The effect that is created when an electric current travels through a water-based solution in order to produce relaxing or stimulating results is known as:

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electrochemical

The electrode that is negatively charged during an electrotherapy treatment is known as a(n):

cathode

The maximum amount of current used in a galvanic treatment should generally not exceed:

2 milliamperes

The minimum distance an infrared lamp must be placed from the client’s face during a facial is:

30”

The most common electrodes are the comb electrode, rake electrode, wrist electrode, carbon electrode and:

massage roller electrode

The portion of the electromagnetic spectrum humans can see is known as:

visible light

The process of forcing an acid or alkali into the skin by applying current to the chemical is called:

phoresis

The three methods for using the high-frequency current are direct application, indirect application and:

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general electrification

The wavelengths that produce the longest waves of the visible spectrum are:

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red

Treatment with light rays or waves is called:

light therapy

Using either ultraviolet or infrared light to treat the skin is called:

light therapy

What is the timing guideline when using galvanic current for a sensitive skin treatment?

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3-5 minutes

What temporary effect will a negative electrode pole produce when applying galvanic current during an electrotherapy treatment?

increases blood flow

When performing an electrotherapy procedure, what current conductor is used to bring the current from the appliance to the client’s skin?

electrode

When testing electrodes for polarity, the negative electrode will create:

smaller bubbles

When the salon professional applies the electrode directly to the client’s scalp or face when using high-frequency current, which method is being used?

direct application

When using Galvanic Current on clients in a salon, what precaution must a salon professional take in order to prevent injury to the client?

do not use over an area having broken capillaries

When using galvanic current, what precaution must a salon professional take in order to prevent injury to the client?

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do not use over an area with many broken capillaries

When using ultraviolet light for germicidal treatments, how far away from the area being treated should the lamp be placed?

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at least 12 inches

Which electrotherapy treatment can cause sebum to be broken down or blackheads to be liquefied, as in deep-pore cleansing?

desincrustation

Which light source is close to being adopted as the mainstream light source due to falling prices and phasing out of 40- and 60-watt bulbs?

LED

Which of the following actions will produce a mild, stimulating sensation while using high-frequency current?

slightly separating the electrode from the skin

Which of the following benefits is derived from UV light?

small doses tan the skin

Which of the following currents has chemical effects that are caused by passing the currents through particular acid or alkaline solutions, then through body tissues and fluids?

galvanic

Which of the following descriptions is a benefit of using infrared light during a facial?

increases circulation

Which of the following is a benefit of using infrared light during a facial?

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increases circulation

Which of the following is NOT a temporary effect of the positive pole of galvanic current?

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softens tissues

Which of the following is NOT a way for heat to be transferred from one object to another?

phoresis

Which of the following possibilities is NOT a benefit from the application of the high-frequency or Tesla current?

decreased rate of metabolism

Which of the following statements is true about fluorescent lighting?

is an economical and long-lasting light source

Which of the following statements is true of visible light?

waves hit an object and are either absorbed or reflected

Which of the following steps would be taken first if you were performing a high-frequency, dry scalp, indirect application treatment?

apply moisturizing scalp treatment cream

Which of the following terms describes using a negative pole or electrode to force negatively charged solutions into the skin without breaking the skin?

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anaphoresis

Which of the following terms is also known as actinic light?

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ultraviolet

Which of the following treatments infuses water-soluble products for deeper penetration into the skin?

iontophoresis

Which of the following types of light has the shortest wavelength?

ultraviolet

Which type of light can be broken into its individual wavelengths by a prism?

white

White light is referred to as:

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combination light

You and your client should wear protective eyewear when you are using:

UV light

A current in which electrons move at an even rate and flow in only one direction is called:

direct

A measure of how much electrical energy is being used is known as a:

watt

A unit of electric resistance is called a(n)":

ohm

A volt is a unit of electric:

pressure

An amp is a unit of electric:

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strength

An ampere is a unit of electric:

strength

An Underwriters Laboratory (UL) designation indicates:

the appliance has been certified to operate safely under the conditions specified

Any electrical appliance activated by the flow of electric current such as a blow dryer is known as a(n):

load

Cords on appliances should be kept straight and free of knots, kinks, and tangles to prevent:

breaks

Dropping an electrical appliance into water, making it a foreign conductor, causes a(n):

short circuit

Electric current moves along a path called a(n):

conductor

Electrons travel on a closed path, called a:

circuit

Fires in electrical circuits can occur if:

too many appliances use the same wall socket and overload the circuit

Glass, rubber or paper are examples of what type of materials?

insulating materials

How many milliamperes equal one ampere?

1,000

How many watts equal one kilowatt?

1,000

Light, heat, chemical and magnetic changes are all produced by:

electricity

Materials that best transport electricity are called:

conductors

Materials that do not allow a current to pass through them are called:

insulators

Most of the electricity you use daily consists of a flow of tiny, negatively charged particles called:

electrons

Since silver and copper transmit electricity, they are called:

conductors

The movement of electricity along a path called a conductor is a(n):

electric current

The two forms of electric current are:

AC & DC

To avoid the possibility of overloads and short circuits, safety devices are installed in appliances and buildings. Two of these devices are fuses and:

circuit breakers

Two common sources of electric current are generators and:

batteries

Volts and frequency needed and watts the appliance consumes are indicated on the:

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nameplate

What are the initials used to help you remember fire extinguisher use?

PASS

What can occur anytime a foreign conductor comes in contact with a wire carrying current to an appliance?

short circuit

What type of outlet is recommended for installation in any area where water and electricity could come into contact?

GFCI

When a blow dryer is on and air begins to flow, you have an example of a(n):

closed circuit

When too many appliances are put on one circuit and are operated all at the same time, more current flows than the line is designed to carry. This is known as:

overload

Which of the following actions should NOT be done if a fire results from an overload of an electric circuit?

put water on it

Which of the following changes alternating current to direct current?

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rectifier

Which of the following descriptions identifies a volt?

measure of how hard the electrons are being forced or pushed by a source

Which of the following devices breaks the flow of current when an overload occurs?

circuit breaker

Which of the following materials does NOT allow a current to pass through it?

alcohol