light, heat, chemical and magnetic charges are all produced by
electricity
the movement of electicity along a conductor is called
electric current
what's the technical name for any electrically powered appliance
load
since silver and copper transport electricity easily, they're called
conductors
materials such as glass, rubber or paper that don't allow electricity to flow through them are called
insulators
an ampere is a unit of electric
strength
a volt is a unit of electric
pressure
what materials allow current to pass through them
metal, water, carbon
a unit of electrical resistance is called an
ohm
the measure of how difficult it is to push electrons through a conductor is called
resistance
the measure of how much electrical energy is being used is called a
watt
a constant electrical current flowing in one direction is called
direct current
what changes direct current into alternating current
converter
electric current that flows first in one direction and then the other is called
alternating current
what changes alternating current into direct current
rectifier
the power source used most often in a salon is a
generator
the very minimum ampere rating of a circuit operating a single 1,000 watt blow dryer would be
10 amperes
if appliances are causing more current to flow than what the circuit is designed to carry, what could occur
overloading
a closed path through which electrons travel is referred to as a
circuit
what would be an example of closing a circuit
turning on a light switch
dropping an electrical appliance into water is an example of
short circuit
what's the name of a device with a fine metal wire running through it which will melt and open the circuit if too much current is flowing through it
fuse
what's a device used to protect a circuit from being overloaded
circuit breaker
a special wire used on some appliances for conducting high and sudden flows of electric current out of the appliance is called a
grounding wire
what type of shock passes through the nervous system
general
what methods are recommended for extinguishing an electrical fire
use a fire extinguisher, smother it with a towel, pour corn starch on it
curling irons and heat lamps are examples of which type of electrically powered equipment
thermal
what does local shock do
passes through a small part of the body
using electric clippers in cosmetology work would be an example of which kind of electrical effect
mechanical
which steps would be followed to break the circuit when a person comes into contact with an electric current
unplug appliance, turn off all the circuit breakers, knock the person out of the circuit using an insulator
the application of special electric currents that have certain effects on the skin are known as
electrotherapy
what's an example of low voltage direct current and high amps
galvanic
in order to apply special currents to the skin, what device is used to reduce the current from a typical 120 volt power source to a level safely handled by the human body
wall plate
when performing an electrotherapy procedure, what apparatus or current conductor is used to bring the current from the appliance to the clients skin
electrode
the oldest form of electrotherapy in the salon is
galvanic current
what's the type of current that has an electrochemical effect
galvanic
what's true about the anode
shows a large p, usually colored red, shows a positive sign
which process uses a negative pole or electrode to force negatively charged solutions into the skin without breaking the skin
anaphoresis
which process uses the positive electrode to force acidic solutions into the skin without breaking the skin
cataphoresis
what's true about cataphoresis
slows the flow of blood, soothes nerves, decreases redness of simple blemishes
what process can use either the negative or positive pole to introduce water soluble treatment products to the skin
iontophersis
what are the temporary effects of the positive pole of galvanic current
produces an acidic reaction, soothes nerves, slows blood flow by contracting the vessels
what's true about a positive pole of galvanic current
produces an acidic reaction, soothes nerves, slows blood flow by contracting the vessels
what type of electrotherapy current is considered superior to faradic current therapy because it penetrates more deeply
sinusoidal
what would be used during a faradic current treatment
indirect method
high frequency and alternating current are characteristics of which type of electrotherapy
tesla
a benefit of tesla therapy may include
improved blood circulation
what benefits are believed to be derived through application of the high frequency current
improved blood circulation, increased rate of metabolism, increased sebaceous glandular activity
the maximum amount of current used in a galvanic treatment shouldn't exceed
1 milliampere
tesla treatments should be limited to no more than how many minutes in duration
5 minutes
the chemical breakdown of the skin caused by intense heat is called
pyrolysis
the portion of the electromagnetic spectrum that humans can see is called
visible light
white light can be broken down into its individual wavelengths by the use of a
prism
which type of light can create blue or cool tones
fluorescent
what type of light carries the most energy
ultraviolet
what type of light has the shortest wavelength
ultraviolet
what light creates the closest substitute for natural sunlight
incandescent
bacteria that cause skin infections can be killed by which kind of light
ultraviolet
small doses of ultraviolet light may help the body produce
vitamin d
what are the benefits of using infrared light during a facial
increased circulation, relaxation of muscles, increased skin gland secretions