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cos 241 > Chapter F07 Review > Flashcards

Chapter F07 Review Flashcards

1
Q

What are the properties of direct current?

A

constant, even flow. Produced by chemical means. Travels in one direction

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2
Q

What are the properties of alternating current?

A

Rapid and interrupted flow, produced by mechanical means, travels in two directions

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3
Q

Define volt.

A

pressure or force that pushes electric current forward through a conductor

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4
Q

Define ohm.

A

resistance of electrical current

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5
Q

What is the electricity in your house measured in?

A

Kilowatts

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6
Q

Define watt.

A

electrical energy used per second

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7
Q

What current is used for facial and scalp treatments?

A

Milliampere

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8
Q

Define amp.

A

strength of an electrical current

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9
Q
A
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10
Q

(T or F) Do not allow two electrical cords to touch while in use.

A

True

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11
Q

(T or F) Study the instructions before using any electrical equipment.

A

True

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12
Q

(T or F) Do not allow electrical cords to become twisted or bent.

A

True

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13
Q

(T or F) Inspect all electrical equipment frequently.

A

True

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14
Q

(T or F) Verify regularly that fire extinguishers are appropriate for electrical fires.

A

True

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15
Q

(T or F) Keep appliances connected when not in use.

A

False

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16
Q

(T or F) Do not attempt to clean around electrical outlets while equipment is unplugged.

A

False (if you clean the outlets everything must be unplugged)

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17
Q

(T or F) Do not allow the client to touch any rubber surfaces while being treated with electrical equipment.

A

False (rubber is a nonconductor)

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18
Q

(T or F) Do not handle electrical equipment with wet hands.

A

True

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19
Q

(T or F) When using electrical equipment, protect the client at all times.

A

True

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20
Q

(T or F) Do not touch two metallic objects at the same time if either is connected to an electric current.

A

True

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21
Q

(T or F) Avoid letting electrical cords dry out.

A

False

22
Q

(T or F) Do not touch any glass while using and electrical appliance.

A

False

23
Q

(T or F) If you see sparks when plugging an appliance in, wait 10 seconds before turning the appliance on.

A

False (you shouldn’t use it until it has been checked by a specialist)

24
Q

(T or F) Do not overload outlets and power strips.

A

True

25
Q

(T or F) Disconnect appliances by pulling on the cord, not the plug.

A

False (Pull on the plug)

26
Q

(T or F) Do not stand in the same room while a client is connected to an electrical device.

A

False

27
Q

(T or F) Repair all wires, plugs, and equipment yourself.

A

False

28
Q

What are the properties of Tesla high-frequency current?

A

Named after a Croatian electrical engineer, uses one electrode made of glass or metal, thermal or heat-producing current with a high rate of oscillation

29
Q

What are the properties of microcurrent?

A

Extremely low level of electricity that mirrows the body’s electrical impulses, negative and positive polarity in one probe, current treats only a specific area, does not travel through the body

30
Q

What are the properties of Galvanic current?

A

produces chemical changes through iontophoresis, constant and direct current using a positive and negative pole, named after an Italian doctor

31
Q

Which is not a modality used in beauty and wellness services?
-integrated current
-galvanic current
-microcurrent
-tesla high-frequency

A

integrated current

32
Q

______ is a process used to soften and emulsify oil and blackheads in hair follicles.

A

deincrustation

33
Q

__________ is the process that introduces water-soluble products into the skin.

A

Iontophoresis

34
Q

Which is the applicator used for directing electric current form an electrotherapy device to a client’s skin?

A

probe

35
Q

Microcurrent can restore _______.

A

elasticity.

36
Q

Anaphoresis ________.

A

softens tissues

37
Q

Which current would most likely be recommended for a client who is looking for acne healing?

A

a treatment that uses microcurrent

38
Q

The modalities used in beauty and wellness utilize two electrodes, with the exception of _____, which uses a single electrode.

A

Tesla high-frequency current

39
Q

which term is used to refer to conditions that prohibit the use of a certain treatment?

A

contraindication

40
Q

Characteristic(s) of UVB rays.

A

Associated with sunburns

41
Q

Characteristic(s) of UVA rays

A

most penetrating UV rays
used in tanning booths
longest UV rays

42
Q

Characteristc(s) of UVC rays

A

blocked by the ozone layer
kills bacteria

43
Q

What is the measurement of the distance between two wavelengths?

A

waveform

44
Q

Within the visible spectrum of light, _______ has the shortest wavelength, and __________ has the longest.

A

violet; red

45
Q

What light is known as “cold light” or “actinic light”?

A

ultraviolet

46
Q

UV lights prompts the skin to produce ________.

A

vitamin D

47
Q

Which form of energy in the electromagnetic spectrum is used in nuclear power?

A

gamma rays

48
Q

________ is effective at killing bacteria, viruses, mold, and other pathogens.

A

UVC light

49
Q

Natural sunlight is made up of _______ types of light.

A

three

50
Q

Which light rays are blocked by the ozone layer?

A

UVC rays

51
Q

Infrared light is __________ penetrating and has _____________ frequency than ultraviolet.

A

more; lower

52
Q

________ light is considered a neutral visible light.

A

green

cos 241 (13 decks)

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