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Cosmetology > Chapter 13 - Basics of Electricity > Flashcards

Chapter 13 - Basics of Electricity Flashcards

1
Q 
Electric wires are usually covered with a rubber substance that is used as a(n):
A. Insulator
B. Conductor
C. Circuit
D. Fuse
A

A. Insulator

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2
Q 
A \_\_\_\_\_\_\_\_ is a device that changes direct current to alternating current. 
A. Rectifier
B. Circuit breaker
C. Converter
D. Fuse box
A

C. Converter

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3
Q 
The term \_\_\_\_\_\_\_\_\_\_\_ refers to a rapid and interrupted current that flows in one direction 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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4
Q 
The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a(n):
A. Amp
B. Watt
C. Ohm
D. Volt
A

D. Volt

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5
Q 
What unit measures the resistance of an electric current?
A. Ohm
B. Watt
C. Amp
D. Volt
A

A. Ohm

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6
Q 
The device that prevents excessive current from passing through a circuit is called a(n):
A. Fuse
B. Battery
C. Kilowatt
D. Ampere
A

A. Fuse

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7
Q 
A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n):
A. Voltage regulator
B. Ampere current 
C. Circuit breaker 
D. Battery charger
A

C. Circuit breaker

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8
Q 
The negative electrode of an electro therapy device is called a(n):
A. Anode
B. Electrode
C. Carbode
D. Cathode
A

D. Cathode

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9
Q 
A process that forces an alkaline product into the tissues from the negative toward the positive pole is called:
A. Cataphoresis
B. Anaphoresis
C. Iontophoresis
D. Micro current
A

B. Anaphoresis

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10
Q 
Grounding completes a(n) \_\_\_\_\_\_\_\_\_\_ and carries the current safely away. 
A. Electric charge
B. Electric current 
C. Complete electric circuit
D. Micro current
A

B. Electric current

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11
Q 
All the electrical appliances you use should:
A. Be battery operated
B. Be UL certified
C. Have a 2 prong plug
D. Be used near water
A

B. Be UL certified

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12
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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13
Q 
Microcurrent can be used to \_\_\_\_\_\_\_\_ and restore elasticity. 
A. Decrease metabolism
B. Increase muscle tone
C. Reduce lymph circulation
D. Prevent acidic reactions
A

B. Increase muscle tone

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14
Q 
Only licensed professionals can use:
A. Hair dryers
B. Steamers
C. Light therapy equipment
D. Vaporizers
A

C. Light therapy equipment

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15
Q 
The flow of electricity along a conductor is called a(n):
A. Electric charge
B. Electric current
C. Energy swirl
D. Spark
A

B. Electric current

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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

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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

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18
Q

UVC light:
A. Is the light often used in tanning beds
B. Has the longest wave of UV light spectrum
C. Is often called the burning light
D. Is blocked by the ozone layer

A

D. Is blocked by the ozone layer

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19
Q 
Catalysts are substances that speed up:
A. Chemical reactions
B. Acidic reactions
C. Alkaline reactions
D. Photoxic reactions
A

A. Chemical reactions

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20
Q 
All laser works by a process known as selective:
A. Emission
B. Electrolysis
C. Photothermolysis
D. Photosynthesis
A

D. Photosynthesis

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21
Q 
Constant and direct current, having a positive and negative pole, that produces chemical changes when it passes through the tissues and fluids of the body is known as \_\_\_\_\_\_\_\_\_ current. 
A. Galvanic
B. Alternating 
C. Electric
D. Conductive
A

A. Galvanic

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22
Q 
An extremely low level of electricity that mirrors the body's natural electrical impulses is:
A. Mini current
B. Micro current 
C. Milliampere
D. Internal current
A

B. Micro current

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23
Q 
A medical device that uses multiple colors and wavelengths of focused light to treat such conditions as excessive hair and spider veins is a(n):
A. Laser
B. Infrared
C. Intense pulse light
D. Light-emitting diode
A

C. Intense pulse light

24
Q 
The thermal or heat-producing current with a high rate of oscillation one vibration commonly used for scalp and facial treatments is called:
A. Tesla light-emitting current
B. Ultraviolet light
C. Intense pulse light
D. Tesla high-frequency current
A

D. 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(n):
A. Laser
B. Infrared light device
C. Intense pulse light
D. Light-emitting diode
A

D. Light-emitting diode

26
Q

Normal electric wall sockets that power a hair dryer or curling iron are 220 volts.
T or F

27
Q

The heating element in a hair dryer heats up because it is not large enough to carry the electric current.
T or F

28
Q

Ultraviolet A light has the longest wavelength of the UV light spectrum.
T or F

29
Q

There are two types of electric current: direct and converted.
T or F

30
Q

Distilled water is a particularly good conductor.

T or F

31
Q

UV prompts the skin to produce vitamin D, a fat soluble vitamin that promotes mineralization of the bones.
T or F

32
Q 
The path of an electric current from the generating source back to the original source is a(n):
A. Incomplete circuit
B. Complete circuit
C. Insulating circuit
D. Direct circuit
A

B. Complete circuit

33
Q 
Cataphoresis forces acidic substances into deeper tissues using galvanic current from the:
A. Positive toward the negative pole
B. Inactive toward the electric pole
C. Negative toward the positive pole
D. Negative toward the ohm pole
A

A. Positive toward the negative pole

34
Q 
The positive electrode is called a(n):
A. Anode
B. Active electrode
C. Cathode
D. Modality
35
Q 
The type of current that should not be used on clients who are pregnant, have high blood pressure, or have a pacemaker is:
A. White light
B. Tesla high-frequency 
C. Alternating current
D. Battery current
A

B. Tesla high-frequency

36
Q 
Lightning bolts travel through the air at speeds of up yo how many miles per hour?
A. 90,000
B. 60,000
C. 40,000
D. 25,000
37
Q 
Rays with long wavelengths that penetrate more deeply and produce more heat than visible light are:
A. X-Rays
B. Ultraviolet rays
C. Radio waves
D. Infrared rays
A

D. Infrared rays

38
Q 
The electrical appliance connection that supplies current to the circuit is the:
A. Prong connection
B. Indirect connection
C. Live connection
D. Ground connection
A

A. Prong connection

39
Q 
Thermal or heat-producing current with a high rate of oscillation or vibration is:
A. Violet Ray 
B. Acidic current
C. Direct current
D. Electrode current
A

A. Violet Ray

40
Q 
An applicator that directs electric current from a machine to the clients skin is a(n):
A. Electrode
B. Modality
C. Converter
D. Rectifier
A

A. Electrode

41
Q 
Infusing water-soluble products into skin with the use of electric current is known as:
A. Deincrustation
B. Iontophoresis
C. Anaphoresis
D. Cataphoresis
A

B. Iontophoresis

42
Q 
Electricity is a form of energy that, when in motion, exhibits:
A. Thermal effects
B. Magnetic effects
C. Chemical effects
D. All of the above
A

D. All of the above

43
Q 
The negative or positive pole of an electric current is referred to as the:
A. Electrode
B. Current
C. Modality
D. Polarity
A

D. Polarity

44
Q 
The process used to treat acne, milia, soften and emulsify deposits in the hair follicles is:
A. Cataphoresis
B. Iontophoresis
C. Desincrustation
D. Diaphoresis
A

C. Desincrustation

45
Q 
The special device that prevents excessive current from passing through a circuit is a(n):
A. Amp
B. Ampere
C. Fuse
D. Insulator
46
Q 
Lasers work by a process that turns the light from the laser into heat called:
A. Catalyst
B. Phototherapy
C. Photothermolysis
D. Radiography
A

C. Photothermolysis

47
Q 
A substance that is particularly good conductor of electricity is:
A. Rubber
B. Silk
C. Glass
D. Copper
48
Q 
Electronic facial treatments are commonly referred to as:
A. Electrotherapy
B. Electronics
C. Receptacles
D. Electromagnetics
A

A. Electrotherapy

49
Q 
The unit that measures the pressure or force that pushes the flow of electrons forward through a conductor is a(n):
A. Amp
B. Electron
C. Rectifier
D. Volt
50
Q 
The current for facial and scalp treatments is measured in:
A. Watts
B. Kilowatts
C. Voltages
D. Milliamperes
A

D. Milliamperes

51
Q 
A measurement of how much electricity is being used in 1 second is a(n):
A. Watt
B. Ohm
C. Kilowatt
D. Volt
52
Q 
Unit that measures the resistance of an electric current
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
53
Q 
Color component within the skin such as blood or melanin
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
A

C. Chromophore

54
Q 
Currents used in electrical facial and scalp
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
A

B. Modalities

55
Q 
Unit that measures the strength of an electric current
A. Ohm
B. Modalities
C. Chromophore
D. Ampere

Cosmetology (32 decks)

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