Define
A measure of how much electrical energy is being used is known as a:
watt
Bacteria that cause skin infections can be killed by:
B. ultraviolet light
White light is referred to as:
D. combination light
During scalp and facial massage, EMS Current is used chiefly to cause:
D. muscle contractions
What temporary effect will a negative pole produce when applying galvanic current during an electrotherapy treatment?
A. increase in blood flow
A unit of electric resistance is called a(n):
B. ohm
Depending on its design, which type of light can create blue or cool tones?
C. fluorescent
You and your client should wear protective eyewear when you are using:
A. UV light
High-frequency current is an alternating current that can be adjusted to different voltages to produce heat and is also known as:
B. Tesla
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?
A. direct application
An amp is a unit of electric:
A. strength
Incandescent light normally produces what color tones in the objects it lights?
C. redder tones
An Underwriters Laboratory (UL) designation indicates:
the appliance has been certified to operate safely under the conditions specified
The chemical breakdown of the skin caused by intense heat is called:
C. pyrolysis
Which of the following actions will produce a mild, stimulating sensation while using high-frequency current?
. slightly separating the electrode from the skin
Electric current moves along a path called a(n):
C. conductor
The wavelengths that produce the longest waves of the visible spectrum are:
A. red
Glass, rubber or paper are examples of what type of materials?
insulating materials
The most common electrodes are the comb electrode, rake electrode, wrist electrode, carbon electrode and:
D. massage roller electrode
The two forms of electric current are:
AC & DC
Materials that best transport electricity are called:
D. conductors
Which of the following types of light has the shortest wavelength?
D. ultraviolet
Which of the following changes alternating current to direct current?
rectifier
The process of forcing an acid or alkali into the skin by applying current to the chemical is called:
A. phoresis
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