buzz
1000 watts =
1 killowatt
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 also known as:
watt
a unit of electric resistance is called:
ohm
a volt is a unit of electric:
pressure
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:
load
dropping an electric appliance into water, making it a foreign conductor causes a:
short circuit
electrons travel on a closed path called:
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 material?
insulating materials
how many milliamperes equal one ampere?
1000
how many watts equal one kilowatt?
1000
light, heat, chemical and magnetic changes are all produced by:
electricity
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 :
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:
nameplate
what are the initials used to help you remember fire extinguisher use?
PASS
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 action should NOT be done if a fire results from an overload of an electric circuit?
put water on it
What changes alternating current to direct current?
rectifier
What device breaks the flow of current when an overload occurs?
circuit breaker
What material does NOT allow a current to pass through it?
alcohol
An amp is a unit of electric:
strength
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:
high-frequency
Another name for microcurrent is:
sinusoidal
Bacteria that cause skin infections can be killed by:
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
EMS is an alternating current used chiefly during scalp and facial massage to cause:
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?
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:
infrared rays
what is the longest wavelength:
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:
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:
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 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:
general electrification
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 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 using galvanic current, what precaution must a salon professional take in order to prevent injury to the client?
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?
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
What action will produce a mild, stimulating sensation while using high-frequency current?
slightly separating the electrode from the skin
What benefit is derived from UV light?
small doses tan the skin
Which current has chemical effects that are caused by passing the currents through particular acid or alkaline solutions, then through body tissues and fluids?
galvanic
What is a benefit of using infrared light during a facial?
increases circulation
What is NOT a way for heat to be transferred from one object to another?
phoresis
What is NOT a benefit from the application of the high-frequency or Tesla current?
decreased rate of metabolism
Which term describes using a negative pole or electrode to force negatively charged solutions into the skin without breaking the skin?
anaphoresis
Which following term is also known as actinic light?
ultraviolet
Which treatment infuses water-soluble products for deeper penetration into the skin?
iontophoresis
Which type of light has the shortest wavelength?
ultraviolet
White light is referred to as:
combination light