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CH F7
Electricity and Electrical Safety
| Question | Answer |
|---|---|
| ______ is a good example of an insulator? | Wood |
| _____ is an example of a conductor | Tap water |
| Why is copper used in electrical wiring and electrical motors? | because it is a good conductor |
| Electricity does not occupy _________or have mass. | space |
| _________ are the types of effects electricity exhibits | magnetic, thermal, and chemical |
| Electricity use impacts ______ of the services that beauty professionals offer their clients | all |
| Why is grounding important? | it protects against electrical shock |
| ____ is an electrical safety device that you may encounter when working in a salon, spa, or barbershop | A circuit breaker |
| What does a watt measure? | how much electric energy is being used in one second |
| ____ measures the resistance of electrical current | An ohm |
| ______ is a rapid, interupted current | An alternating current |
| _________ current flows in one direction, whereas alternating current flows back and forth. | Direct |
| The poles of an electric current are either __________or______. | positive or negative |
| A __________ is used as an applicator for directing electric current from an electrotherapy device to the client's skin | electrode |
| The use of electrical currents to treat the skin is called ______. | electrotherapy |
| If you receive a light shock sensation while using an electrical appliance you should | unplug the appliance from the wall |
| In order to practice good electrical safety, ALWAYS _____. | disconnect appliances when they are not in use |
| Pulling on the cord, not the plug, when disconnecting an electrical appliance is | not good electrical safety advice |
| A GFI most likely would be in | a bathroom |
| The third circular electrical connection on a three-prong plug is called a ______. | grounding pin |
| The electromagnetic spectrum is the name given to ______ . | all of the forms of energy that exist |
| A condition that prohibits certain treatments is called a _____. | contraindication |
| Tesla high-frequency current is used for | improving germicidal action |
| A microcurrent is most useful for | reducing redness and inflammation |
| What reaction can be expected when using cataphoresis | stimulation of nerves |
| Galvanic current has a _______ and _______ pole | positive and negative |
| A positive electrode is called a _________: the negative electrode is called a _______. | anode; cathode |
| Which type of light prompts the skin to produce beneficial vitamin D? | ultraviolet |
| Ultraviolet light is | invisible |
| Infrared light _____. | produces heat |
| Which percentage of natural sunlight is visible, making up the visible spectrum of light? | 35% |
| WHat is the difference between long wavelengths and short wavelengths | Long wavelengths have low frequency; short wavelengths have high frequency |
| How does energy move through space? | in waves |
| Florescent light is ______ than natural light | cooler |
| _______ is most likely the type of energy associated with nuclear power plants | Gamma rays |
| Which type of light prompts the skin to produce beneficial vitamin D? | ultraviolet |
| Light therapy is also know as _______. | phototherapy |
Created by:
Lfranklin15