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31 Cards in this Set
- Front
- Back
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Different _____ have different effects on the skin. |
Light rays |
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Barbers need to know when it is appropriate to apply the thermal and chemical properties associated with _______ to the skin. |
Light therapy |
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Electricy is not matter because it does not occupy _____ or have _____. |
- space - mass |
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Electricity is a form of energy that produces _____, _____, _____, or _____ effect when in motion. |
Physical, magnetic, chemical, or thermal |
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_____ is the flow of electricity along a conductor. |
Electric current |
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A _____ is any substance, material, or medium that conducts electricity. |
Conductor |
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_____ is a rapid and interrupted current, flowing fist in one direction and then in the opposite direction, that produces a _____ action. |
- alternating current (AC) - mechanical |
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A _____ is an apparatus found within a power supply or adapter that converts AC DC. |
Rectifier |
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Electrical resistance in an electric current |
Ohm |
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Ampere |
Strength or rate of an electric current in a conductor |
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Watt |
Unit of power |
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Volt |
Electrical pressure |
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A fuse is a safety device that prevents the _____ of electrical wires by preventing excessive _____ from passing through a circuit. |
- Overheating - current |
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A fuse blows or melts when a wire becomes too _____, which happens when the circuit is _____ with too much current. |
- hot - overloaded |
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A circuit breaker is an _____ that automatically _____ or _____ an electric circuit at the first indication of an overload. |
- switch - interrupts - shuts off |
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What color has the longest wavelength? |
Red |
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What does UL stand for? |
Underwrighters Lan |
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Electode is made of what? |
Glass or metal |
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How many minutes are allowed for a general facila or scalp treatment? |
5 |
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Blank indicates the negative or positive pole of an electric current |
Polarity |
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Blank is not matter because it does not occupy space or mass |
Electicity |
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Electricity and a house is measured in what |
Kilowatts |
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Does microcurrent increase metabolism or decreasing |
Increase |
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How many colors in the rainbow |
7 |
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When wires become too hot, a circuit breaker will turn off and _____ the circuit. |
Break |
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All electrical appliances must have at least _____ electrical connections. |
Two |
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_____ provides protection from electrical shock in the event of a short circuit. |
Grounding |
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The different size of the _____ in modern electrical plus guarantee that the plugs can only be _____ one way. |
- prongs - inserted |
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A ground fault interrupter is an outlet that senses _____ within an electric circuit. |
Imbalances |
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_____ and _____ are commonly referred to as electrotherapy. |
- electronic facial- scalp treatment facial- scalp treatment - scalp treatment |
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Electricity |
A form of energy that produces physical, magnetic, chemical or thermal effects when in motion. |
