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Elecrticity:
A form of energy that produces light, heat, magnetic, & chemical charges.
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Electric Current:
The movement of electricity along a path called a conductor.
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Load:
The technical name for an electrically powered appliance.
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Conductor:
A material that allows electricity to flow through it easily.
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Insulator:
A material that does not allow the flow of electric current.
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Amp:
A unit of electric strength.
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Volt:
A unit of electric pressure.
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Ohm:
A unit of electric resistance.
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Watt:
A measure of how much electrical energy is being used.
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Electrotheapy:
The application of electrical currents during treatments to the skin.
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What is a Direct Current?
(DC), in which electrons move at an even rate & flow in only one direction.
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What is Alternating Current?
(AC), in which electrons flow first in one direction & then the other.
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What is a Converter?
I device used to change direct current into alternating current.
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What is a Rectifier?
A device used to change alternating current into direct current.
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Define the difference between o fuse & a curcuit breaker.
- Fuse- A device that contains a fine metal wire that allows current to flow through it.
- Circuit Breaker- A reusable device that breaks the flow of current when an overload occurs.
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What should you do for Local Shock?
Immerse burn in cool water immediately & if severe, take the person to hospital or physician.
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What should you do for General Shock?
This type of shock causes the heart to stop & muscles to convulse. Break the current before touching the person, Dial 911, Start CPR, DO NOT STOP CPR until emergency team arrives.
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Galvanic current is a (a)__(a)__ of low voltage & high (b)__.
- a) Direct Current (DC)
- b) Amperage
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Phoresis:
The process of forcing an acid (+) or alkali (-) into the skin by applying current to the chemical.
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Anaphoresis:
Uses the negative pole (cathode) or electrode to force negatively charged (alkaline) solutions into the skin without breaking the skin.
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Cataphoresis:
Uses a positive pole (anode) or electrode to force positively charged (acidic) solutions into skin without breaking skin.
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Faradic current is an (a)__(a)__ interrupted to produce a mechanical, non-chemical reaction. Faradic current stimulates (b)__ & (c)__ tissue.
- a) Alternating Current (AC)
- b) Nerve
- c) Muscle
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Sinusoidal current is an (a)__(a)__, interrupted to produce a mechanical effect, much like the faradic current that produces (b)__ contractions.
- a) Alternating Current (AC)
- b) Muscle
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Tesla, high frequency current, know as the "(a)__-(a)__" in an (b)__ current.
- a) "Violet-Ray"
- b) Alternating Current (AC)
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What is Pyrolysis?
The chemical breakdown of the skin. (Ex. when you are burned & blister forms.)
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Florescent Light:
Is an economical & long-lasting light source. Can create "blue" or "cool" casts & can create hair coloring problems unless natural sunlight is available.
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Incandescent Light:
This kind of light is provided by an ordinary light bulb. Normally producing redder tones & warmer casts in the objects light.
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Sunlight is: (a)__% Infrared Rays, (b)__% Ultra Violet Rays, (c)__% Visible Rays.
- a) 80% Infrared Rays
- b) 80% Ultra Violet Rays
- c) 40% Visible Rays
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