chapter 13

Question 1

electricity is a form of energy that, when in motion exhibits, thermal,magnetic or chemical effects

Answer 1

all

Question 2

lightning bolts travel through the air at speeds of up to how many miles per hour?

Answer 2

60,000

Question 3

a substance that is particularly good conductor of electricity is what?

Answer 3

copper

Question 4

the path of an electric current from the generating source back to the original source is a

Answer 4

complete circuit

Question 5

rubber, silk, wood, and glass are common examples of what?

Answer 5

insulators

Question 6

rapid and interrupted current that flows in one direction and then in the opposite direction is

Answer 6

alternating current

Question 7

electricity travels how many miles per second

Answer 7

186,00

Question 8

the unit that measures the pressure or face that pushes the flow of electrons forward through a conductor is a

Answer 8

volt

Question 9

the current for facial and scalp treatments is measures in what ?

Answer 9

milliamperes

Question 10

a measurement of how much electricity is being used in 1 second is a

Answer 10

watt

Question 11

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

Answer 11

fuse

Question 12

the electrical appliance connection that supplies current to the circuit is the what

Answer 12

live connection

Question 13

electronic facial treatments are commonly referred to as

Answer 13

electrotherapy

Question 14

an applicator that directs electric current from a machine to a clients skin is a

Answer 14

electrode

Question 15

the negative or positive pole of an electric current is referred to as a

Answer 15

polarity

Question 16

the positive electrode is called a

Answer 16

anode

Question 17

infusing water- soluble products into the skin with the use of electric current is known as

Answer 17

iontonphoresis

Question 18

cataphoresis forces acidic substances into deeper tissues using galvanic current from he

Answer 18

positive toward the negative pole

Question 19

the process use et o treat acne and milia and softer and emulsify deposits in the hair follicles is

Answer 19

sesincrustation

Question 20

thermal or heat proceeding current with a high rate of oscillation or vibration is

Answer 20

violet ray

Question 21

the type of current that should not be used on clients who are pregnant, have high blood pressure or have a pacemaker is

Answer 21

tells high frequency

Question 22

the distance between two successive peaks is called

Answer 22

wavelength

Question 23

rays with short wavelengths that are the least penetrating , produce chemical effects, and kill germs are

Answer 23

ultraviolet rays

Question 24

rays with long wavelengths that penetrate more deeply and produce more heat than visible light are

Answer 24

infrared rays

Question 25

laser work by a process that terms the light from the laser into heat called

Answer 25

photothermolysis

Question 26

substances that speed up chemical reactions

Answer 26

catalysts

Question 27

unit that measures the strength of a electric current

Answer 27

ampere

Question 28

unit that measures the resistance of an electric current

Answer 28

ohm

Question 29

currents used in electrical facial and scalp

Answer 29

modalities

Question 30

extremely low level of electricity that mirrors the body’s natural electrical impulses

Answer 30

microcurrent

Question 31

color component within the skin such as blood or melanin

Answer 31

chromophore