Chapter 4 Electricity Review

Light, heat, chemical and magnetic change are all produced by:

electricity

The movement of electricity along a conductor is called:

electric current

What is the technical name for any electrically powered appliance?

load

Since silver and copper transport electricity easily, they are called:

conductors

Materials such as glass, rubber or paper that do not allow electricity to flow through them are called:

insulators

An ampere is a unitof electric:

strength

A volt is a unit of electric:

pressure

Which of the following materials does NOT allow a current to pass through it?

alcohol

A unit of electrical resistance is called a(n):

ohm

The measure of how difficult it is to push electrons through a conductor is called:

resistance

The measure of how much electrical energy is being used is called a(n):

watt

A constant electrical current flowing in one direction is called a(n):

direct current

What changes direct current into alternating current?

converter

Electric current that flows first in one direction and then the other is called:

alternating current

What changes alternating current into direct current?

rectifier

The power source used most often in a salon is a:

generator

The very minimum ampere rating of a circuit operating a single 1,000-watt blow dryer would be:

10 amperes

If appliances are causing more current to flow than what the circuit is designed to carry, what could occur?

overloading

A closed path through which electrons travel is referred to as a:

circuit

Which of the following actions would be an example of closing a circuit?

turning on a light switch

Dropping electrical appliance into water is an example of:

short circuit

What is the name of a device with a fine metal wire running through it which will melt and open the circuit if too much current is flowing through it?

fuse

What is a device used to protect a circuit from being overloaded?

circuit breaker

A special wire used on some applicances for conducting high and sudden flows of electric current out of the applicance is called a:

grounding wire

What type of shock passes through the nervous system?

general

Which of the following methods is NOT recommended for extinguishing an electrical fire?

pour water on it

Curling irons and heat lamps are examples of which type of electrically powered equipment?

thermal

What does a local shock do?

passes through a small part of the body

Using electric clippers in cosmetology work would be an example of which kind of electrical effect?

mechanical

Which of the following steps should NOT be followed to break the circuit when a person comes into contact with an electric current?

touch the person to ground the circuit

The applicaiton of special electric currents that have certain effects on the skin is known as:

electrotherapy

Which of the following currents is an example of low-voltage direct current and high amps?

Galvanic

In order to apply special currents to the skin, what device is used to reduce the current from a typical 120-volt power source to a level sagely handled by the human body?

wall plate

When performing an electrotherapy procedure, what apparatus or current conductor is used to bring the current from teh applicance to the client's skin?

electrode

The olderst form of electrotherapy used in the salon is:

Galvanic Current

What is the type of curren that has an electrochemical effect?

Galvanic

Which of the following statements is NOT true about the anode?

is usually colored balck

Which process uses a negative pole or electrode to force negatively charged (alkaline) solutions into the skin without breaking the skin?

anaphoresis

Which process uses teh positive electrode to force acidic solutions into the skin without breaking the skin?

catapheoresis

Which of the following statements is NOT true about catephoreisis?

softens tissues and opens pores

What process can use either the negative or positive pole to introduce water-soluble treatment products to the skin?

iontophoresis

Which of the following descriptions is NOT a temporary effect of the postive pole of Galvanic Current?

softens tissues

Which of the following statements is NOT true about a positive pole of Galvanic Current?

opens pores after facial treatment

What type of electrotherapy current is considered superior to Faradic Currenttherapy because it penetrates more deeply?

Sinusoidal

Which of the following items would be used during a Faradic Current treatment?

indirect method

High Frequency and alternating current are characteristics of which type of electrotherapy?

Tesla

A benefit of Tesla Current therapy may include:

improved blood circulation

Which of the following benefits is NOT believed to be derived through application of the High Frequency current?

decreased rate of metabolism

The maximum amount of current used in a Galvanic treatment should not exceed:

1 milliampere

Tesla treatment should be limited to more than how many minutes in duration?

5

The chemical breakdown of the skin caused by intense heat is called:

pyrolysis

The portion of the electromagnetic spectrum that humans can see is called:

visible light

White light can be broken down into its individual wavelengths by the use of a:

prism

Which type of light can create blue or cool tones?

fluorescent

Which of the following types of light carries the most energy?

ultraviolet

Which of the following types of light has the shortest wavelength?

ultraviolet

What light creates the closest substitute for natural sunlight?

incandescent

Bacteria that cause skin infections can be killed by which kind of light?

ultraviolet

Small doses of ultraviolet light may help the body produce:

Vitamin D

Which of the following effects is NOT a benefit of using infrared light during a facial?

decreased skin gland secretion