Chapter Four: Electricity Flashcards

1
Q

Light, heat, chemical and megnetic changes are produced by:

A

electricity

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2
Q

Material that best best transports electricity:

A

conductor

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3
Q

Silver and copper transmit electricity:

A

conductor

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4
Q

Materials that do not allow electricity to flow through them:

A

insulators

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5
Q

Materials such as glass, rubber or paper around a conductor that does not allow a current to pass through it is called a:

A

insulator

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6
Q

Material a current does not pass through:

A

alcohol

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7
Q

Unit of electric strength:

A

ampere

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8
Q

How many milliamperes equal one ampere?

A

1,000

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9
Q

Measure of electric energy:

A

watt

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10
Q

Constant electric current flowing in one direction:

A

direct current

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11
Q

Breaks the flow of current when an overload occurs:

A

circuit breaker

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12
Q

Steps that should NOT be followed to break the circuit when a person comes in contact with an electric current:

A

touch the person to ground the circuit

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13
Q

The application of special currents (or modalities) that have a variety of effects on the skin:

A

electrotherapy

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14
Q

When performing an electrotherapy procedure, what apparatus or current conductor is used to bring the current from the appliance to the skin?

A

electrode

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15
Q

The direct current used in electrotherapy treatments:

A

Galvanic

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16
Q

Electrode negatively charged during electrotherapy treatment:

A

cathode

17
Q

Temporary effect a negative electrode pole produces when applying Galvanic Current during electrotherapy treatment:

A

increase in blood flow

18
Q

NOT a temporary effect of the positive pole of galvanic current:

A

softens tissue

19
Q

Electrotherapy treatment that causes sebum to be broken down or blackheads to be liquefied, as in deep-pore cleansing:

A

desincrustation

20
Q

When using galvanic current on clients, what precaution must a stylist take in order to prevent injury?

A

do not use over an area having broken capillaries

21
Q

Faradic current is used chiefly to cause:

A

muscle contractions

22
Q

Tesla, a high frequency current, is known as:

A

violet rays

23
Q

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

A

tesla

24
Q

An alternating current which can be adjusted to different voltages to produce heat is:

A

high frequency

25
Q

Produces a mild, stimulating sensation while using high frequency current:

A

slightly separating the electrode from the skin

26
Q

Treatment with light rays:

A

light therapy

27
Q

Light that can be broken into individual wavelengths by a prism:

A

combination

28
Q

The longest wavelength:

A

infrared rays

29
Q

What kind of light mimics natural light?

A

incandescent

30
Q

Pure heat rays are produced by:

A

infrared rays

31
Q

A benefit of using infrared light during a facial:

A

increases circulation

32
Q

Average distance an infrared lamp should by placed during a facial:

A

30 inches

33
Q

Actinic rays are also known as:

A

ultraviolet

34
Q

Benefits derived from UV light:

A

small doses tan the skin

35
Q

Small doses of ultraviolet light helps the body produce:

A

vitamin D

36
Q

Bacteria that causes skin infections can be killed by:

A

ultraviolet light:

37
Q

Before using UV light on the skin and scalp it should be:

A

cleansed