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
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
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
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
5
Q
What unit measures the resistance of an electric current? A. Ohm B. Watt C. Amp D. Volt
A
A. Ohm
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
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
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
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
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
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
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
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
14
Q
Only licensed professionals can use: A. Hair dryers B. Steamers C. Light therapy equipment D. Vaporizers
A
C. Light therapy equipment
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
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
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
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 laser works by a process known as selective: A. Emission B. Electrolysis C. Photothermolysis D. Photosynthesis
A
D. Photosynthesis
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
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
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
```
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
```
D. Light-emitting diode
26
Normal electric wall sockets that power a hair dryer or curling iron are 220 volts.
T or F
False
27
The heating element in a hair dryer heats up because it is not large enough to carry the electric current.
T or F
True
28
Ultraviolet A light has the longest wavelength of the UV light spectrum.
T or F
True
29
There are two types of electric current: direct and converted.
T or F
False
30
Distilled water is a particularly good conductor.
| T or F
False
31
UV prompts the skin to produce vitamin D, a fat soluble vitamin that promotes mineralization of the bones.
T or F
True
32
```
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
```
B. Complete circuit
33
```
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. Positive toward the negative pole
34
```
The positive electrode is called a(n):
A. Anode
B. Active electrode
C. Cathode
D. Modality
```
A. Anode
35
```
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
```
B. Tesla high-frequency
36
```
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
```
B. 60,000
37
```
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
```
D. Infrared rays
38
```
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. Prong connection
39
```
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. Violet Ray
40
```
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. Electrode
41
```
Infusing water-soluble products into skin with the use of electric current is known as:
A. Deincrustation
B. Iontophoresis
C. Anaphoresis
D. Cataphoresis
```
B. Iontophoresis
42
```
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
```
D. All of the above
43
```
The negative or positive pole of an electric current is referred to as the:
A. Electrode
B. Current
C. Modality
D. Polarity
```
D. Polarity
44
```
The process used to treat acne, milia, soften and emulsify deposits in the hair follicles is:
A. Cataphoresis
B. Iontophoresis
C. Desincrustation
D. Diaphoresis
```
C. Desincrustation
45
```
The special device that prevents excessive current from passing through a circuit is a(n):
A. Amp
B. Ampere
C. Fuse
D. Insulator
```
C. Fuse
46
```
Lasers work by a process that turns the light from the laser into heat called:
A. Catalyst
B. Phototherapy
C. Photothermolysis
D. Radiography
```
C. Photothermolysis
47
```
A substance that is particularly good conductor of electricity is:
A. Rubber
B. Silk
C. Glass
D. Copper
```
D. Copper
48
```
Electronic facial treatments are commonly referred to as:
A. Electrotherapy
B. Electronics
C. Receptacles
D. Electromagnetics
```
A. Electrotherapy
49
```
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
```
D. Volt
50
```
The current for facial and scalp treatments is measured in:
A. Watts
B. Kilowatts
C. Voltages
D. Milliamperes
```
D. Milliamperes
51
```
A measurement of how much electricity is being used in 1 second is a(n):
A. Watt
B. Ohm
C. Kilowatt
D. Volt
```
A. Watt
52
```
Unit that measures the resistance of an electric current
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
```
A. Ohm
53
```
Color component within the skin such as blood or melanin
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
```
C. Chromophore
54
```
Currents used in electrical facial and scalp
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
```
B. Modalities
55
```
Unit that measures the strength of an electric current
A. Ohm
B. Modalities
C. Chromophore
D. Ampere
```
D. Ampere
