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Milady Exam Review: Cosmetology > CHAPTER 13: BASICS OF ELECTRICITY > Flashcards

CHAPTER 13: BASICS OF ELECTRICITY Flashcards

1
Q

The movement of electrons from one atom to another along a conductor is called ____________.

a. an electrical charge
b. electricity
c. energy flow
d. sparks

A

b. electricity

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2
Q

Electric wires can be covered with a material that does not transmit electricity such as a rubber or plastic coating. This material is known as _____________.

a. an insulator
b. a conductor
c. a circuit
d. a fuse

A

a. an insulator

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3
Q

An apparatus that changes direct current to alternating current is _____________.

a. a rectifier
b. a circuit breaker
c. an inverter
d. a fuse box

A

c. an inverter

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4
Q

The term ________ refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction.

a. rectifier current
b. alternating current
c. active current
d. direct current

A

b. alternating current

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5
Q

The unit that measures the pressure or force that pushes the electric current forward through a conductor is _________.

a. an amp
b. a watt
c. an ohm
d. a volt

A

d. a volt

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6
Q

Which unit measures the resistance of an electric current?

a. ohm
b. watt
c. amp
d. volt

A

a. ohm

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7
Q

The device that prevents excessive current from passing through a circuit is called __________________.

a. a fuse
b. a battery
c. a kilowatt
d. an ampere

A

a. a fuse

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8
Q

A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is ________.

a. a voltage regulator
b. an ampere interrupter
c. a circuit breaker
d. a battery charger

A

c. a circuit breaker

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9
Q

The negative electrode of an electrotherapy device is called _________.

a. an anode
b. an electron
c. a carbide
d. a cathode

A

d. a cathode

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10
Q

A process that infuses an alkaline product into the tissues from the negative pole toward the positive pole is called _______________.

a. a cataphoresis
b. an anaphoresis
c. an iontophoresis
d. a microcurrent

A

b. an anaphoresis

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11
Q

Grounding completes ____________ and carries the current safely away.

a. an electric charge
b. an electric circuit
c. an electron flow
d. a microcurrent

A

b. an electric circuit

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12
Q

All the electrical appliances you use should _________.

a. be battery operated
b. be UL certified
c. have a two prong plug
d. be used near water

A

b. be UL certified

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13
Q

When using ______, the active electrode is the electrode used on the area to be treated.

a. alternating current
b. direct current
c. electric current
d. galvanic current

A

d. galvanic current

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14
Q

Microcurrent can be used to __________ and restore elasticity.

a. decrease metabolism circulation
b. increase muscle tone
c. reduce lymph
d. prevent acidic reactions

A

b. increase muscle tone

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15
Q

Only licensed professionals should use ___________.

a. electrical hairdryers equipment
b. electric steamers
c. light therapy
d. electric vaporizers

A

c. light therapy

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16
Q

A wavelength is the distance between successive peaks of ___________ waves.

a. electric
b. electromagnetic
c. galvanic
d. infrared

A

b. electromagnetic

17
Q

Invisible light is the light at either end of the ________ that is invisible to the naked eye.

a. electromagnetic spectrum
b. spectrum of radiance
c. spectrum of radiation
d. visible spectrum of light

A

d. visible spectrum of light

18
Q

Ultraviolet C (UVC) light ____________.

a. is often used in tanning beds
b. has the longest wavelength
c. is often called the burning light
d. is blocked by the ozone layer

A

d. is blocked by the ozone layer

19
Q

Catalysts are substances that speed up ____________.

a. chemical reactions
b. acidic reactions
c. alkaline reactions
d. photoxic reactions

A

a. chemical reactions

20
Q

All lasers work by a process known as selective ___________.

a. emission
b. electrolysis
c. photothermolysis
d. photosynthesis

A

c. photothermolysis

21
Q

Constant and direct current, having a positive and negative pole, which produces chemical changes when it passes through the tissues and fluids of the body is known as _____________ current.

a. a galvanic
b. an alternating
c. a direct
d. a conductive

A

a. a galvanic

22
Q

An extremely low level of electricity that mirrors the body’s natural electrical impulses is _________.

a. a minicurrent
b. a microcurrent
c. a milliampere
d. an internal current

A

b. a microcurrent

23
Q

A medical device that uses multiple colors and wavelengths of focused light to treat conditions such as excessive hair and spider veins is ___________.

a. a laser
b. an infrared light device
c. an intense pulse light
d. a light-emitting diode

A

c. an intense pulse light

24
Q

The thermal or heat-producing current with a high rate of oscillation or vibration that is commonly used for scalp and facial treatments is called ___________.

a. a Tesla light-emitting current
b. an ultraviolet light
c. an intense pulse light
d. a Tesla high-frequency current

A

d. a Tesla high-frequency current

25
Q

A device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin tissue is _________.

a. a laser
b. an infrared light device
c. an intense pulse light
d. a light-emitting diode

A

d. a light-emitting diode

26
Q

For safety, use no more than ______ plug(s) in each outlet.

a. one
b. two
c. three
d. four

A

a. one

27
Q

When ________ is heated, it produces positive and negative ions that cancel the electric charges in the hair that cause static electricity.

a. aluminum
b. stainless steel
c. tourmaline
d. an insulator

A

c. tourmaline

28
Q

The application of UV light must be done with the utmost care in a proper manner by a qualified professional because overexposure can lead to skin _____________.

a. allergies and irritation
b. damage and skin cancer
c. dryness and scaling
d. excessive sloughing

A

b. damage and skin cancer

29
Q

The use of _________ light reduces acne and bacteria on the skin.

a. green
b. red
c. yellow
d. blue

A

d. blue

30
Q

The unit that measures how much electric energy is being used in one second is ___________.

a. an ohm
b. a volt
c. a watt
d. an ampere

A

c. a watt

Milady Exam Review: Cosmetology (33 decks)

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