102.9-102.10 Electricity Test WK 2 Flashcards

1
Q

Light, Heat, chemical, and magnetic changes are all produced by what?

A

Electricity

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2
Q

Since Silver and copper transmit electricity, what are they called?

A

Conductors

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3
Q

What are materials that do not allow a current to pass through them are called what?

A

Insulators

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4
Q

What type of material does not allow a current to pass through it?

A

Alcohol

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5
Q

An amp is a unit of electric what?

A

Strength

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6
Q

A volt is a unit of electric what?

A

Pressure

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7
Q

A current in which electrons move at an even rate and flow in only one direction is called what?

A

Direct Current

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8
Q

Dropping an electrical appliance into water, making it a foreign conductor, causes a what?

A

Short Circuit

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9
Q

What device breaks the flow of current when an overload occurs?

A

Circuit Breaker

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10
Q

The appliances of a specific electric current or piece of equipment for corrective and therapeutic benefits on the skin is called what?

A

Electro therapy

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11
Q

When performing an electro therapy procedure, what current conductor is used to bring the current from the appliance to the client’s skin?

A

Electrode

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12
Q

When using galvanic current, what precautions must a salon professional take in order to prevent injury to the client?

A

Do not use over an area with many broken capillaries

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13
Q

The direct current used in electro therapy treatments is what?

A

Galvanic

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14
Q

The electrode that is negatively charged during an electro therapy treatment is know as what?

A

Cathode

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15
Q

Which electro therapy treatment can cause sebum to be broken down or blackheads to be liquefied, as in deep-pore cleansing?

A

Desincrustation

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16
Q

What temporary effect will a negative electrode pole produce when applying galvanic current during an electrotherapy treatment?

A

Increases Blood Flow

17
Q

What is not a temporary effect of the positive pole of galvanic current?

A

Softens Tissues

18
Q

EMS is an alternating current used chiefly during scalp and facial massage to cause what?

A

Muscle Contractions

19
Q

An alternating current that can be adjusted to different voltages to produce heat is what?

A

High-frequency

20
Q

When the salon professional applies the electrode directly to the client’s scalp or face when using high-frequency current, which method is being used?

A

Direct application

21
Q

If the client is holding the active electrode while the salon professional manually stimulates that area being treated, what method of high-frequency current is being used?

A

Indirect application

22
Q

Which of the following actions will produce a mild, stimulating sensation while using high-frequency current?

A

Slightly separating the electrode from the skin

23
Q

Treatment with light rays or waves is called what?

A

Light therapy

24
Q

What is the longest wave length?

A

Infrared rays

25
Q

Which of the following descriptions is a benefit of using infrared light during a facial?

A

Increases circulation

26
Q

What is the minimum distance and infrared lamp must be placed from the client’s face during a facial?

A

30”

27
Q

Small doses of ultraviolet light may help the body produce what type of vitamin?

A

Vitamin D

28
Q

Bacteria that cause skin infections can be killed by what?

A

Ultraviolet light

29
Q

Before using ultraviolet light on a client, the skin or scalp should be what?

A

Cleansed

30
Q

You and your client should wear protective eyewear when you are using what type of light?

A

UV light