Electricity
Light, heat, chemical and magnetic changes are all produced by?...
Material that best transports electricity?...
A conductor
Since silver and copper transmit electricity,they are called?...
Conductors
Materials that do not allow a current to pass through them are called?...
Insulators
Material such as glass, rubber, or paper around a conductor that does not allow current to pass through it is a(n)?...
Insulator
Which of the following materials does NOT allow a current to pass through it?...
Alcohol
An ampere is a unit of electric?...
Strength
How many milliamperes equal one ampere?...
1,000
A volt is a unit of electric?...
Pressure
A unit of electric resistance is called a(n)?...
Ohm
A measure of how much electric energy is being used is known as?...
Watt
A constant electric current flowing in one direction is called a(n)?...
Direct current
Which of the following devices breaks the flow of a current when an overload occurs?...
Circuit breaker
Which of the following steps should NOT be followed to break the circuit when a person comes in contact with an electric current?...
Touch the person to ground the circuit.
The application of special currents ( or modalities) that have a variety of effects on the skin is called?...
Electrotherapy
A current conductor used to direct the current from the appliance to the clients skin is called a(n)?...
Electrode
The direct current used in Electrotherapy treatments is?...
Galvanic
The electrode that is negatively charged during an Electrotherapy treatment is known as a(n)?...
Cathode
What temporary effect will a negative electrode pole produce when applying galvanic current during an Electrotherapy treatment?...
Increase in blood flow
Which of the following is NOT a temporary effect of the positive pole of galvanic current?...
Softens tissues
A treatment in which sebum is broken down or blackheads are liquefied, as in deep pore cleansing, is known as?...
Desincrustation
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.
Faradic current is used chiefly to cause?...
Muscle contractions
Tesla, a high frequency current, is known as the?...
Violet Ray
High frequency and alternating current are characteristics of which type of Electrotherapy?...
Tesla
An alternating current that can be adjusted to different voltages to produce heat?...
High frequency
If the client is holding the active electrode while the salon professional manually stimulates the area being treated, what method of tesla current is being used?...
Indirect application
Which of the following will produce a mild, stimulating sensation while using high frequency current?...
Slightly separating the electrode from the skin.
Treatment with light rays is called?...
Light therapy.
Which type of light can be broken into its individual wavelengths by prism?...
Combination
Which of the following has the longest wavelength?...
Infrared Rays.
A salon owner wants to mimic natural sunlight as closely as possible in the salon reception area. Which type of light would most likely be used to accomplish this requirement?...
Incandescent.
Pure heat Rays are produced by?...
Infrared Rays.
Which of the following is a benefit of using infrared light during a facial?...
Increases circulation.
The average distance an infrared lamp should be placed during a facial is about?...
30'
Which of the following at also known as actinic rays?...
Ultraviolet.
Which of the following is a benefit derived from UV light?...
Small doses tan the skin.
Small doses of ultraviolet light may help the body produce ?...
Vitamin D.
Bacteria that causes skin infections can be killed by?...
Ultraviolet light.
Before using ultraviolet light on a client, the skin or scalp should be?...
Cleansed.
Electricity
Is a form of energy that produces light, heat, magnetic and chemical changes.
Electric current
Is the movement of electricity along a path called a conductor.
Load
Is the technical name for any electricity powered appliance.
Conductor
Is a material that allows electricity to flow through it easily.
Insulator
Is a material that does not allow the flow of electric current.
Amp
Is a unit of electric strength.
Volt
Is a unit of electric pressure.
Ohm
Is a unit of electric resistance.
Watt
Is a measure of how much electrical energy is being used.
Electrotherapy
Is the application of electrical currents during treatments to the skin.
A salon is full of ____ ( electrically powered appliances) just waiting to be activated by the flow of electric current.
Loads
The materials that best transport electricity are called?...
Conductors
The best conductors are?...
Silver and copper.
An amp or ampere is a unit of?...
Electric strength.
Amp=
Strength
Volt=
Pressure
Ohm=
Resistance
Watt=
Electricity used
Electric current exists in 2 forms:
DC (direct current) and AC (alternating current)
The power source most often used in a salon?...
A generator.
A machine that uses mechanical energy to produce a flow of electrons?...
Generator.
A ___ is a path on which the electrons leave the source and operate an appliance.
Closed path
When a path is broken, it's called an ____?....
Open circuit.
____ allows the user to power several loads at different times or at once.
Parallel wiring.
____ forces user to have all loads running at the same time.
Series wiring.
A ____ can occur any time a " foreign conductor " comes in contact with a wire carrying current to a load ( appliance ).
Short circuit.
A device that contains a fine metal wire that allows current to flow through it?
A fuse.
An _____ occurs when to much current is flowing & the fuse can hear up and the wire will melt, breaking the circuit and cutting the flow of electricity.
An overload.
Human contact with an electric current causes a shock. If someone comes in contact with an electric current, it is most important to break the circuit carrying the power.
1. Knock the person out of the circuit by using an insulator, like a broom, plastic brush or plast garbage can. 2. Unplug appliance 3. Rush to the power box and turn off all the circuit breakers.
A ____ passes through a small part of the body
Local shock
A ____ passes through the nervous system
General shock
If a fire results from an overload of an electric circuit and an appliance melts and burns, what do you NOT do?
So not put water on it.
Three kinds of effects can be created by electric current during cosmetology services. They are.....
Heating effects, mechanical or magnetic effects and electrochemical effects.
_____ is created when electric current travels through water based solution in order to produce relaxing or stimulating results.
Electrochemical
The application of special currents that have certain effects on the skin.
Electrotherapy
A direct current of low voltage and high amperage.
Galvanic current
A current conductor is called an _____. It's used to bring the current from the appliance to the clients skin.
Electrode
The process of forcing an acid (+) or alkali (-) into the skin by applying current to the chemical is called _____?
Phoresis
An alternating current, interrupted to produce a mechanical, non chemical reaction .
Faradic current
The faradic current is a ____ method.
Indirect method.
The slight separation of the electrode from the skin creates a ________ , _______sensation.
Mild, stimulating sensation
Production of beneficial effects on the body through treatments using light rays and waves.
Light therapy
Conduction
The transfer of heat via direct contact
Convection
The transfer of heat via liquid or gas.
Radiation
The transfer of heat through a vacuum ( empty space )
The wavelengths that produce ____ are the longest waves of the visible spectrum.
Red
The closest substitute for natural light?
Incandescent light
Benefits of infrared light during a facial....
1. Increases circulation 2. Increases skin gland secretions 3. Relaxation of muscles 4. Stimulation of cell and tissue activity