Chapter 13: Basics Of Electricity

Question 1

What is the movement of electrons from one atom to another along a conductor?

Answer 1

Electricity

Question 2

Electricity is a form of energy that, when in motion exhibits ( ) effects

Answer 2

chemical

Question 3

What is an example of a good conductor?

Answer 3

Copper

Question 4

A nonconductor is also known as…?

Answer 4

An insulator

Question 5

Rubber, silk, wood, glass, and cement are good…?

Answer 5

insulators

Question 6

A ( ) is the path of negative and positive currents moving from the generating source through the conductors and back to the generating source

Answer 6

Compete electric circuit

Question 7

What are the two types of electric currents?

Answer 7

direct & alternating

Question 8

A ( ) is produced by chemical means

Answer 8

direct current

Question 9

What is a rapid and interrupted current, flowing first in one direction then in the opposite direction?

Answer 9

Alternating current

Question 10

What is the unit that measures the pressure or force that pushes electric current forward through a conductor?

Answer 10

A volt

Question 11

Normal wall sockets that power hair tools are ( ) volts.

Answer 11

120

Question 12

What is the unit that measures the strength of an electric current?

Answer 12

An ampere (amp)

Question 13

The current used for facial and scalp treatment is measured in

Answer 13

milliamperes

Question 14

What is the unit that measures the resistance of an electric current?

Answer 14

An Ohm

Question 15

A ( ) is a unit that measures how much electric energy is being used in one second.

Answer 15

Watt

Question 16

A ( ) prevents excessive current from passing through a circuit.

Answer 16

fuse

Question 17

Which is the most protective plug?

Answer 17

three-prong plug

Question 18

All electrical appliances you use should be ( ) certified

Answer 18

UL (underwriters laboratories)

Question 19

The use of electrical currents to treat the skin is commonly referred to as…?

Answer 19

Electrotherapy

Question 20

Currents used in electrical facial and scalp treatments are called…?

Answer 20

modalities

Question 21

What is an applicator for directing electric current from an electrotherapy device to the clients skin?

Answer 21

An electrode

Question 22

What is the negative or positive pole of an electric current?

Answer 22

Polarity

Question 23

The positive electrode is called…?

Answer 23

An anode

Question 24

What is the process of infusing water-soluble products into the skin with the use of electric current?

Answer 24

Iontophoresis

Question 25

Cataphoresis infuses and acidic product into deeper tissues using galvanic current from the...?

Answer 25

positive pole toward the negative pole

Question 26

What is a form of anaphoresis uses to treat acne, milia, and comedones?

Answer 26

Desincrustation

Question 27

What is an extremely low level of electricity that mirrors the body's natural electrical impulses?

Answer 27

microcurrent

Question 28

What is also know as violet ray?

Answer 28

Tesla high-frequency current

Question 29

( ) should not be used on clients who are pregnant, have epilepsy, asthma, high blood pressure, pacemaker, or metal implants!

Answer 29

Tesla high-frequency current

Question 30

Each type of energy has it's own...?

Answer 30

wavelength

Question 31

What is the distance between successive peaks of electromagnetic waves?

Answer 31

wavelength

Question 32

Which invisible light has a short wavelength and is less penetrating than visible light?

Answer 32

ultraviolet light

Question 33

UV light prompts the skin to produce ( ), a fat-soluble vitamin that is good for bone growth and health.

Answer 33

vitamin D

Question 34

it is estimated that 1 in 5 Americans will develop skin cancer and that 90% of those cancers will be the result of exposure to...?

Answer 34

UV radiation

Question 35

Ultraviolet ( ) light is blocked by the ozone layer

Answer 35

C

Question 36

What has longer wavelengths, penetrates more deeply, has less energy, and produces more heat than visible light?

Answer 36

Infrared light

Question 37

What are substances that speed up chemical reactions?

Answer 37

Catalysts

Question 38

What is also known as phototherapy?

Answer 38

Light therapy

Question 39

All lasers work by selective ( ), a process that turns light from the laser device into heat.

Answer 39

photothermolysis

Question 40

What is a color component within the skin such as blood or melanin?

Answer 40

Chromophore

Question 41

What light increases circulation and improves the collagen and elastin production in the skin?

Answer 41

red light