Electricity. Flashcards
A measure of how much electrical energy is being used:
WATT
What does a converter do?
Changes the direct current to alternating current
If you have a 100-WATT dryer and used it for two hours you have used how many kilowatts?
2 kilowatts
1000*2=2000
A circuit where electrons leave the source to operate an appliance
I.e. Air flowing through a blow dryer
Closed Circuit
or Complete Circuit
Give an example of a short circuit:
Dropping an electrical unit into water
What is the oldest form of electrotherapy used in a salon?
Galvanic Current (direct current of low voltage & high amperage)
This process uses a positive pole (anode) or electrode to force positively charged (acid) solutions into the skin without breaking the skin:
Cataphoresis
Effects:
- Produces an acidic reaction, which can force acidic solutions to penetrate the skin
- Slows the blood flow by contracting the vessels to decrease redness or inflammation when applied to simple blemishes on the skin
- Hardens tissues, closing pores after facial treatment
- Soothes nerves
White lights can be broken down into its individual wavelengths by the use of?
Prisms
Ultraviolet rays are also known as:
Actinic Rays
What creates the closest substitute for natural sunlight?
Incadescent light
A device that contains fine metal wire that allows a current to flow through it if there is too much current:
Fuse
The measure of how difficult it is to push electrons through a conductor is called:
Resistance
Direct current of low voltage & high amperage:
Has chemical effects that are caused by passing the current through particular acid or alkaline solutions &/or passing the current through body tissues and fluids.
Galvanic Current
Alternating current; produces a mechanical, non-chemical reaction & stimulates nerve & muscle tissue:
Uses indirect (most frequent) & direct methods of application.
Faradic Current
Effects:
- Improves blood circulation
- Improves muscle tone
- Stimulates hair growth
- Increases glandular activity
Alternating current with mechanical effects & and produces muscle contractions:
Uses indirect method of application.
Sinusoidal Current
Alternating current which can be adjusted to different voltages to produce heat:
Uses direct &I indirect method applications; also uses general electrification.
Tesla Current (High frequencies) "Violet Rays"
Effects:
- Improves blood circulation
- Increases rate of metabolism
- Increases sebaceous (oil glands) glandular activity
Shock that passes through the entire nervous system:
General Shock
Shock that passes through one area only:
Local Shock
A circuit with a broken path
i.e. Turning a switch off on an appliance
Open Circuit
A form of energy that produces light, heat, magnetic &a chemical changes:
Electricity
The movement of electricity along a path called a conductor:
Electrical current
The technical name for any electrically powered appliance:
Load
A material that does not allow the flow of electric current:
Insulator
A material that allows electricity to flow through it easily:
Conductor
A unit of electric strength:
AMP
A unit of electric pressure:
VOLT
A unit of electric resistance:
OHM
The application of electrical currents during treatments to the skin:
Electrotherapy
Light that tans the skin &I may help the body produce vitamin D:
Ultraviolet Rays
or Actinic Rays
A light that kills bacteria that causes skin infection:
Ultraviolet Light
A light that produces pure heat rays & increases circulation & skin gland secretion:
Infrared Light
Reusable device that breaks flow of current when overload occurs:
Circuit Breaker
This wire protects you while operating certain appliances:
Grounding Wire
A current in which electrons move at an even rate & flow in only one direction:
Direct Current (DC)
A current in which electrons flow first in one direction and then in the other:
Alternating Current (AC)
Has a positive and negative terminal and produces direct current only:
Battery
A machine that uses mechanical energy to produce a flow of electrons:
Generator
The number of times cycling (switch from positive and negative and back) occurs per second like in a generator:
Frequency
When more current flows than the line is designed to carry:
i.e. When too many appliances are being used at the same time
Overload
When a “foreign conductor” comes in contact with a wire carrying current to a load (appliance):
i.e. When a finger gets stuck between the wall socket & plug
Short Circuit
Effects of an electric current that travels through a water-based solution (a liquid conductor) in order to produce relaxing or stimulating results:
Electrochemical effects
The process of forcing and acid (+) or alkali (-) into the skin by applying current to the chemical is called:
*Most typical application of Galvanic Current
Phoresis
Use of a negative pole (cathode) or electrode to force negatively charged (alkaline) solutions into the skin without breaking the skin:
*Galvanic Current
Anaphoresis
Effects:
- Produces an alkaline reaction, which can course alkaline solutions to penetrate skin
- Increases blood flow by expanding the vessels to aid circulation
- Softens tissues
- Stimulates nerves
Production of beneficial effects on the body through treatments using light rays or waves:
Light therapy
The portion of the electromagnetic spectrum humans can see is called:
Can be broken down into individual wavelengths by a prism.
*Wavelengths that produce red are the longest waves of the visible spectrum
Visible light
A combination light
i.e. Fluorescent light: economical & long lasting; create cool tones
& Incandescent light
White light
A volt is a unit of electric?
Pressure
