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milady esthetics > ch 8 - basics of electricity > Flashcards

ch 8 - basics of electricity Flashcards

1
Q

what does the acronym LED stand for

a. light-emitting diode
b. laser-emitting device
c. light electrical device
d. laser electrode dial

A

light-emitting diode

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2
Q

what measure is one-thousandth of an ampere

a. multiampere
b. milliampere
c. microampere
d. macroampere

A

milliampere

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3
Q

what term refers to currents used as electrical facial and scalp treatments

a. modems
b. moderations
c. modalities
d. modes

A

modalities

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4
Q

what apparatus changes alternating current to direct current

a. charger
b. actuator
c. modifier
d. rectifier

A

rectifier

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5
Q

what describes Tesla high-frequency current

a. high rate of oscillation and a low rate of vibration
b. high rate of oscillation and vibration
c. low rate of oscillation and vibration
d. low rate of oscillation and a high rate of vibration

A

high rate of oscillation and vibration

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6
Q

what is a description of white light

a. complete absence of light of any color
b. combination of all the visible rays of the spectrum
c. combination of all the invisible rays of the spectrum
d. combination of any two or more colors of visible light

A

combination of all the visible rays of the spectrum

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7
Q

what is yellow LED light used for

a. aiding in facial and scalp treatments
b. detoxifying the skin
c. reducing inflammation and swelling
d. stimulating circulation

A

reducing inflammation and swelling

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8
Q

what is red LED light used for

a. stimulating circulation
b. reducing inflammation and swelling
c. detoxifying the skin
d. aiding in facial and scalp treatments

A

stimulating circulation

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9
Q

what is green LED light used for

a. aiding in facial and scalp treatments
b. reducing inflammation and swelling
c. stimulating circulation
d. detoxifying the skin

A

detoxifying the skin

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10
Q

what is the primary source of light used in facial and scalp treatments

a. visible light
b. invisible light
c. natural light
d. artificial light

A

visible light

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11
Q

what is a device in which UVA radiation is used

a. autoclave
b. tanning bed
c. hairdryer
d. towel warmer

A

tanning bed

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12
Q

what is the term commonly used in reference to UVB radiation

a. tanning light
b. rainbow light
c. ozone light
d. burning light

A

burning light

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13
Q

what is true of UVC radiation

a. it is the least dangerous type of UV radiation
b. it is the most dangerous type of UV radiation
c. it is used in tanning beds
d. it is often called the burning light

A

it is the most dangerous type of UV radiation

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14
Q

what term refers to a color component within the skin such as blood or melanin

a. chromoform
b. chromophore
c. chromakey
d. chromazyme

A

chromophore

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15
Q

how does red LED light affect cellular processes

a. decreases cellular processes
b. increases cellular processes
c. stops cellular processes completely
d. interrupts cellular processes temporarily

A

increases cellular processes

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16
Q

what is NOT a condition that intense pulsed light is used to treat

a. spider veins
b. hyperpigmentation
c. albinism
d. excessive hair

A

albinism

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17
Q

what is wavelength

a. primary source of light used in facial and scalp treatments
b. distance between two successive peaks of electromagnetic waves
c. flow of electricity along a conductor
d. color component of the skin sound at different depths

A

distance between two successive peaks of electromagnetic waves

18
Q

what does watt measure

a. how much electric energy is used in one second
b. how much electric energy is used in 10 seconds
c. how much electric energy is used in one minute
d. how much electric energy is used in 10 minutes

A

how much electric energy is used in one second

19
Q

what does volt measure

a. force pushing electrons forward through a conductor
b. force moving protons backward through a conductor
c. resistance keeping electrons from moving through a conductor
d. resistance keeping protons from moving through a conductor

A

force pushing electrons forward through a conductor

20
Q

what do ohms measure

a. force of electric current
b. direction of electric current
c. resistance of electric current
d. absence of electric current

A

resistance of electric current

21
Q

what is the term for a rapid and interrupted current, flowing first in one direction and then in the opposite direction

a. direct current
b. alternating current
c. advance current
d. directional current

A

alternating current

22
Q

what is the term for a constant, even-flowing current that travels in one direction only

a. steady current
b. direct current
c. even current
d. alternating current

A

direct current

23
Q

what unit measures the amount of an electric current

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

A

amp

24
Q

what type of LED light is used to treat acne

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

A

blue

25
Q

what is the term for a negative electrode

a. diode
b. anode
c. cathode
d. nullode

A

cathode

26
Q

what is the movement of particles around an atom that creates pure energy

a. fission
b. fusion
c. electricity
d. magnetism

A

electricity

27
Q

what should you do on a regular basis

a. inspect electrical equipment
b. submerge electrical equipment in water for cleaning purposes
c. discard any electrical equipment that looks old-fashioned
d. dismantle electrical equipment

A

inspect electrical equipment

28
Q

what is ionization

a. forcing acidic substances into deeper tissue using galvanic current
b. introducing water-soluble products into the skin with electric current
c. using galvanic current to create an alkaline chemical reaction
d. the use of electrical devices for therapeutic benefits

A

introducing water-soluble products into the skin with electric current

29
Q

what is cataphoresis

a. forcing alkaline substances into deeper tissues using galvanic current
b. withdrawing alkaline substances form the skin with microcurrent
c. withdrawing acidic substances from the skin with micro current
d. forcing acidic substances into deeper tissues using galvanic current

A

forcing acidic substances into deeper tissues using galvanic current

30
Q

what is anaphoresis

a. forcing liquids into tissues from the negative toward the positive pole
b. forcing liquids into tissues from the positive toward the negative pole
c. pulling liquids from tissues, from the negative toward the positive pole
d. pulling liquids from tissues, from the positive toward the negative pole

A

forcing liquids into tissues from the negative toward the positive pole

31
Q

what is the other method for applying high-frequency current, besides indirect application

a. angular surface application
b. angular superficial application
c. direct surface application
d. indirect superficial application

A

direct surface application

32
Q

what percentage of natural sunlight does invisible infrared light comprise

a. 10
b. 30
c. 60
d. 100

A

60

33
Q

what is a complete circuit

a. path of current from one conductor to the next
b. path of current from the source through conductors and back
c. path of current from the source to the first conductor
d. path of current from the last conductor back to the source

A

path of current from the source through conductors and back

34
Q

what is the term for any substance that easily transmits electricity

a. transmitter
b. receiver
c. resister
d. conductor

A

conductor

35
Q

what is the device that prevents excessive current from passing through a circuit

a. switch
b. outlet
c. fuse
d. ground

A

fuse

36
Q

what completes a circuit and carries the current safely away

a. circuit breaker
b. mainline
c. fuse
d. ground

A

ground

37
Q

what are invisible rays with long wavelengths

a. phantom light rays
b. infrared light rays
c. translucent light rays
d. ethereal light rays

A

infrared light rays

38
Q

what is the term for a substance that does not easily transmit electricity

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

A

insulator

39
Q

what is the measurement for 1,000 watts

a. megawatt
b. macro watt
c. kilowatt
d. kerawatt

A

kilowatt

40
Q

what is NOT a condition treated with light therapy

a. obesity
b. capillaries
c. wrinkles
d. acne

A

obesity

milady esthetics (46 decks)

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