A measure of how much electrical energy is being used is known as a: - watt, Bacteria that cause skin infections can be killed by: - ultraviolet light, 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, High-frequency current is an alternating current that can be adjusted to different voltages to produce heat and is also known as: - Tesla, Incandescent light normally produces what color tones in the objects it lights? - redder tones, Small doses of ultraviolet light may help the body produce: - vitamin D, The chemical breakdown of the skin caused by intense heat is called: - pyrolysis, The most common electrodes are the comb electrode, rake electrode, wrist electrode, carbon electrode and: - massage roller electrode, 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, The wavelengths that produce the longest waves of the visible spectrum are: - red, What temporary effect will a negative pole produce when applying galvanic current during an electrotherapy treatment? - increase in blood flow, 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, 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 treatments infuses water-soluble products for deeper penetration into the skin? - iontophoresis, Which of the following types of light has the shortest wavelength? - ultraviolet, White light is referred to as: - combination light, You and your client should wear protective eyewear when you are using: - UV light, A unit of electric resistance is called a(n): - ohm, An amp is a unit of electric: - strength, An Underwriters Laboratory (UL) designation indicates: - the appliance has been certified to operate safely under the conditions specified, Electric current moves along a path called a(n): - conductor, Glass, rubber or paper are examples of what type of materials? - insulating materials, Materials that best transport electricity are called: - conductors, 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, Which of the following changes alternating current to direct current? - rectifier,

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