Ch4 Electricity

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Author:
DaNille1721
ID:
112888
Filename:
Ch4 Electricity
Updated:
2011-10-28 17:26:33
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Ch4
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Ch4 Electricity
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  1. Elecrticity:
    A form of energy that produces light, heat, magnetic, & chemical charges.
  2. Electric Current:
    The movement of electricity along a path called a conductor.
  3. Load:
    The technical name for an electrically powered appliance.
  4. Conductor:
    A material that allows electricity to flow through it easily.
  5. Insulator:
    A material that does not allow the flow of electric current.
  6. Amp:
    A unit of electric strength.
  7. Volt:
    A unit of electric pressure.
  8. Ohm:
    A unit of electric resistance.
  9. Watt:
    A measure of how much electrical energy is being used.
  10. Electrotheapy:
    The application of electrical currents during treatments to the skin.
  11. What is a Direct Current?
    (DC), in which electrons move at an even rate & flow in only one direction.
  12. What is Alternating Current?
    (AC), in which electrons flow first in one direction & then the other.
  13. What is a Converter?
    I device used to change direct current into alternating current.
  14. What is a Rectifier?
    A device used to change alternating current into direct current.
  15. 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.
  16. What should you do for Local Shock?
    Immerse burn in cool water immediately & if severe, take the person to hospital or physician.
  17. 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.
  18. Galvanic current is a (a)__(a)__ of low voltage & high (b)__.
    • a) Direct Current (DC)
    • b) Amperage
  19. Phoresis:
    The process of forcing an acid (+) or alkali (-) into the skin by applying current to the chemical.
  20. Anaphoresis:
    Uses the negative pole (cathode) or electrode to force negatively charged (alkaline) solutions into the skin without breaking the skin.
  21. Cataphoresis:
    Uses a positive pole (anode) or electrode to force positively charged (acidic) solutions into skin without breaking skin.
  22. 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
  23. 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
  24. Tesla, high frequency current, know as the "(a)__-(a)__" in an (b)__ current.
    • a) "Violet-Ray"
    • b) Alternating Current (AC)
  25. What is Pyrolysis?
    The chemical breakdown of the skin. (Ex. when you are burned & blister forms.)
  26. 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.
  27. Incandescent Light:
    This kind of light is provided by an ordinary light bulb. Normally producing redder tones & warmer casts in the objects light.
  28. 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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