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CH 13 Electricity
| Question | Answer |
|---|---|
| A device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin tissue is a | light-emitting diode |
| Invisible light is the light at either end of the ___________ that is invisible to the naked eye. | visible spectrum of light |
| The thermal or heat-producing current with a high rate of oscillation or vibration commonly used for scalp and facial treatments is called | Telsa high-frequency current |
| A medical device that uses multiple colors and wavelengths of focused light to treat such conditions as excessive hair and spider veins | intense pulse light |
| Extremely low level of electricity that mirrors the body's natural electrical impulses | microcurrent |
| UVC light | is blocked by the ozone layer |
| A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is | circuit breaker |
| The unit that measures the pressure or force that pushes the flow of electrons through a conductor is | volt |
| A rapid and interrupted current that flows in one direction then in the opposite direction | alternating current |
| The flow of electricity along a conductor is called | electric current |
| Electric wires are usually covered with a rubber substance that is used as a | insulator |
| Device that prevents excessive current from passing through a circuit is called | fuse |
| Device that changes direct current to alternating current | converter |
| All the electrical appliances you use should | be UL certified |
| Only licensed professionals can use | light therapy equipment |
| Grounding completes a _____________ and carries the current safely away. | electric current |
| The negative electrode of an electrotherapy device is called | cathode |
| Process that forces an alkaline product into the tissues from the negative toward the positive pole is called | anaphoresis |
| Device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin tissue is | light-emitting diode |
| The term used for measuring the resistance of an electric current | ohm |
| An insulator or _______________ is a substance that does not easily transmit electricity | nonconductor |
| Safety devices that prevent the overheating of electric wires are known as | fuses and circuit breakers |
| Term used for measuring strength of electric current | ampere |
| What electrical term is abbreviated AC | alternating current |
| Unit that measures pressure or force that pushes the flow of electrons forward through a conductor | volt |
| Term used for measuring how much electric energy is being used in one second | wattage |
| An apparatus that conducts the electric current from the machine to the clients skin is called | electrode |
| LED | Light-Emitting Diode |
| Light blocked by ozone layer | UVC |
| Instrument that produces moist, uniform heat that can be applied to the head or face is called | steamer/vaporizer |
| Treatment that removes blood vessels, hair follicles, and some wrinkles is known as | LASER |
| The distance between two successive peaks of electromagnetic waves is known as | wavelength |
| Commonly used modalities in cosmetology are Telsa, microcurrent, and | galvanic current |
| The process used to soften and emulsify grease deposits and blackheads in the hair follicles is called | deincrustation |
| Forces acidic substances into deeper tissues using galvanic current from positive toward the negative pole | Cataphoresis |
| Infrared rays are mainly used during hair conditioning treatments and to | process haircolor |
| 35% of natural sunlight is made up of | visible light |
| Ultraviolet rays make up _____ percent of natural light and are also referred to as cold rays or actinic rays | 5 |
| What is a thermal or heat-producing current with a high rate of oscillation or vibration that is commonly used for scalp and facial treatments? | violet ray |
| What apparatus changes alternating current to direct current? | rectifier |
| What unit of measure is equivalent to 1/1,000 of an ampere? | milliampere |
| A positive electrode is called | anode |
| The process of introducing water-soluble products into the skin with the use of electric current is known as | iontophoresis |
| An extremely low level of electricity that mirrors the body's natural electricity impulses is known as | microcurrent |
| Light amplification stimulation emission of radiation | LASER |
Created by:
Lfranklin