Chapter 13 Test Questions

Question 1

In galvanic current, the electrode used on the area to be treated is the:

Answer 1

active electrode

Question 2

In LED therapy, _____ light reduces hyperpigmentation.

Answer 2

green

Question 3

The unit that measures the resistance of an electric current is a(n):

Answer 3

ohm

Question 4

A(n) _____ measures the amount of electric energy used in 1 second.

Answer 4

watt

Question 5

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

Answer 5

volt

Question 6

Microcurrent is NOT used to:

Answer 6

increase elimination and absorption

Question 7

A substance that does not easily transmit electricity is called a(n):

Answer 7

insulator

Question 8

The third prong found on the plugs of some appliances is called the:

Answer 8

grounding pin

Question 9

The different types of electrical currents used in facial and scalp treatments are called:

Answer 9

modalities

Question 10

Within the visible spectrum of light, the longest wavelength is:

Answer 10

red

Question 11

Rapid, interrupted electric current that flows in one direction then in the opposite direction is called _____ current.

Answer 11

alternating

Question 12

Constant, even-flowing electrical current that travels in one direction only is called:

Answer 12

direct current

Question 13

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

Answer 13

complete electric circuit

Question 14

A(n) _____ is a substance that speeds up a chemical reaction.

Answer 14

catalyst

Question 15

An applicator used to direct electric current from an electrotherapy device to a client’s skin is a(n):

Answer 15

electrode

Question 16

Which process is used to soften and emulsify oil deposits in hair follicles and treat acne conditions?

Answer 16

desincrustation

Question 17

All the electrical appliances you use should be __ certified.

Answer 17

UL

Question 18

Intense pulse light is NOT used to treat:

Answer 18

clogged pores

Question 19

In facial treatments, the process of infusing water-soluble products into the skin with electric current is called:

Answer 19

iontophoresis

Question 20

Which of the following is NOT an insulator?

Answer 20

copper

Question 21

Ultraviolet (UV) rays applied to the skin during a treatment prompt the skin to produce:

Answer 21

vitamin D

Question 22

A switch that automatically interrupts or shuts off an electric circuit at the first indication of an overload is a(n):

Answer 22

circuit breaker

Question 23

UV light causes chemical reactions to happen more quickly than visible light, and:

Answer 23

kills some germs

Question 24

The flow of electricity along a conductor is called:

Answer 24

an electric current

Question 25

A _____ is the distance between successive peaks of an electromagnetic wave.

Answer 25

wavelength

Question 26

Infrared lamps are NOT used:

Answer 26

to produce alkaline reactions

Question 27

Which term refers to the negative or positive pole of an electric current?

Answer 27

polarity

Question 28

Conventional hood hair dryers:

Answer 28

can be used to shorten chemical processing time

Question 29

The application of light rays to the skin for the treatment of wrinkles or pigmentation is called light therapy or:

Answer 29

phototherapy

Question 30

A(n) _____ is an apparatus that changes alternating current (AC) to direct current (DC).

Answer 30

rectifier

Question 31

The unit that measures the strength of the electric current is a(n):

Answer 31

amp

Question 32

Which type of electrotherapy involves a thermal current with a high rate of oscillation or vibration, and is commonly used for scalp and facial treatments?

Answer 32

Tesla high-frequency current

Question 33

A(n) _____ is a device that changes direct current to alternating current.

Answer 33

inverter

Question 34

A _____ is a color component within the skin such as blood or melanin.

Answer 34

chromophore

Question 35

What name is given to all of the forms of energy that exist?

Answer 35

electromagnetic spectrum

Question 36

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

Answer 36

photothermolysis

Question 37

Electricity is the movement of _____ from one atom to another along a conductor.

Answer 37

electrons

Question 38

The positive electrode on an electrotherapy device is called a(n):

Answer 38

anode

Question 39

Which type of UV light is most associated with sunburns?

Answer 39

UVB

Question 40

Which process infuses an alkaline product into the tissues from the negative pole toward the positive pole?

Answer 40

anaphoresis