Electricity
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| light, heat, chemical and magnetic changes are all produced by | electricity
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| material that best transports electricity is an | conductor
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| since silver and copper transmit electricity, they are called | conductors
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| materials such as glass, rubber or paper around a conductor that does not allow current to pass through is called an | insulator
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| which of the following materials does not allow a current to pass though it | alcohol
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| an ampere is a unit of electric | strength
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| how many milliamperes equal one ampere | 1,000
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| a volt is a unit of electric | pressure
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| a unit of electric resistance is called | ohm
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| a measure of how much electric energy is being used is known as a | watt
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| a constant electric current flowing in one direction is called an | direct current
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| which of the following devices breaks the flow of current when an overload occurs | circuit breaker
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| which of the following of the steps should NOT be followed to break the circuit when a person comes in contact with an electric current? | touch the person to ground the circuit
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| the application of special currents (or modalities) that have a variety of effects on the skin is called | electrotherapy
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| a current conductor used to direct the current appliance to the clients skin is called an | electrode
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| the direct current used in electrotherapy treatment is | galvanic
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| the electrode that is negatively charged during an electrotherapy treatment is known as an | cathode
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| what temporary effect will a negative electrode pole produce when applying galvanic current during an electrotherapy treatment | increase in blood flow
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| which of the following is not a temporary effect of the positive pole of galvanic current | softens tissues
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| a treatment in which sebum is broken down or blackheads are liquefied, as in deep-pore cleansing is known as | desincrustation
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| when using galvanic current on clients in a salon, what precaution must a salon professional take in order to prevent injury to the client | do not use over an area having broken capillaries
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| faradic current is used chiefly to cause | muscle contractions
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| tesla, a high frequency current is known as the | violet ray
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| high frequency and alternating current are characteristics of which type of electrotherapy | telsa
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| an alternating current that can be adjusted to different voltages to produce heat | high frequency
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| if the client is holding the active electrode while the salon professional manually stimulates the area being treated , what method of telsa current is being used | indirect application
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| which of the following will produce a mild, stimulating sensation while using high frequency current | slightly separating the electrode from the skin
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| treatment with light rays is called | light therapy
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| which type of light can be broken into its individual wavelengths by a prism | combination
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| which of the following has the longest wavelengths | infrared rays
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| a salon owner wants to mimic natural sunlight as closely as possibly in the salon reception area, which type of light would most likely be used to accomplish this requirement? | fluorescent light
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| pure heat rays are produced by | infrared rays
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| which of the following is a benefit of using infrared light during a facial | increases circulation
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| the average distance an infrared lamp should be places during a facial is about | 30"
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| which of the following are known as actinic rays | ultraviolet
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| which of the following is a benefit derived from the UV light | small doses tan the skin
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| small doses of ultraviolet light may help the body produce | vitamin d
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| bacteria that cause the skin infections can be killed by | ultraviolet light
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| before using ultraviolet light on a client, the skin or scalp should be | cleansed
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| materials that do not allow a current to pass is called an | insulator
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