Chapter 11: Basics of Electricity

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A glass or metal applicator used for directing electric current from a machine to a client's skin is a(n):

electrode

The amount of electric energy being used in one second is measured in a(n):

watt

Ultraviolet (UV) rays applied to the skin during a treatment prompt the skin to produce:

vitamin D

Constant, even-flowing electrical current that travels in one direction only is:

direct current

Electromagnetic radiation that carries energy through space on waves is also called:

radiant energy

The term electricity describes a form of:

energy

The most commonly used electric modality in cosmetology is:

galvanic current

The different types of electrical currents used in facial and scalp treatments are:

modalities

The unit that measures the amount of electric current is a(n):

amp

Within the visible spectrum of light, the longest wavelength is:

red

The path an electric current from the generating source through a conductor and back to the original source is a(n):

complete circuit

Thermal, oscillation current used to stimulate in facial and scalp treatments is:

Tesla current

Polarity indicates the negative or positive pole of a(n):

electric current

Electronic facial treatments are commonly referred to as:

electrotherapy

A high voltage on an electrical appliance indicates:

more pressure

Visible electromagnetic radiation is referred to as:

visible light

A substance that does not easily transmit electricity is a(n):

insulator

A process used to soften and emulsify oil deposits in hair follicles and treat acne conditions is:

desincrustation

The positive electrode pole on an electrotherapy device is called a(n):

anode

An important principle in promoting electrical safety is:

grounding

Energy sources, heat, or light used to make reactions happen more quickly are:

catalysts

Rapid, interrupted electric current that flows in one direction then in the opposite direction is:

alternating current

The distance between two successive peaks of electromagnetic radiation is the:

wavelength

The flow of electricity along a conductor is called a(n):

electric current

In facial treatments, the process of introducing water-soluble products into the skin with electric current is:

iontophoresis

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