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Ch 13
Basics of Electricity
| Question | Answer |
|---|---|
| ____ is the unit that measures the pressure or force that pushes the flow of electrons forward through a conductor. | a volt |
| The term used for measuring the resistance of an electric current is: | ohm |
| The term used for measuring how much electric energy is being used in one second is: | wattage |
| The term used for measuring the strength of an electric current is: | ampere |
| Safety devices that prevent the overheating of electric wires is known as: | fuses and circuit breakers |
| An insulator or _______ is a substance that doesn't easily transmit electricity. | nonconductor |
| An apparatus that conducts the electric current from the machine to the client's skin is called a/an: | electrode |
| Commonly used modalities in cosmetology are Tesla, microcurrent, and: | galvanic current |
| ____________ forces acidic substances into deeper tissues using galvanic current from the positive toward the negative pole. | |
| The process of introducing water-soluble products into the skin with the use of electric current is known as: | iontophoresis |
| Another name for the Tesla high-frequency current is: | violet ray |
| 35% of natural sunlight is made up of: | visible light |
| Ultraviolet rays make up ___% of natural light and are also referred to as cold rays or actinic rays. | 5 |
| Infrared rays are mainly used during hair conditioning treatments and to: | process haircolor |
| The process used to soften and emulsify grease deposits and blackheads in the hair follicles is called: | desincrustation |
| An instrument that produces moist, uniform head that can be applied to the head or face is called a: | steamer |
| An extremely low level of electricity that mirrors the body's natural electricity impulses is known as: | microcurrent |
| The light blocked by the ozone layer is called: | UVC |
| Treatment that can remove blood vessels, hair follicles, and some wrinkles is known as: | LASER |
| LED stands for: | Light-Emitting Diode |