Basics of Electricity

Question 1

The movement particles around an atom that creates pure energy is known as:

Answer 1

Electricity.

Question 2

The flow of electricity along a conductor in a complete circuit is called:

Answer 2

An electric current.

Question 3

A ________ is any material that easily conducts electricity.

Answer 3

Conductor.

Question 4

Rubber, silk, wood and cement are good examples of ________: Also known as nonconductors.

Answer 4

Insulators.

Question 5

The path of negative and positive electric currents moving from the generating source through the conductors and back to the generating original source or to the ground is known as:

Answer 5

A complete electric circuit.

Question 6

A _______ ________ is a constant, even-flowing current that travels in one direction only.

Answer 6

Direct current.

Question 7

An apparatus that changes direct current to alternating current is called:

Answer 7

A converter.

Question 8

A rapid and interrupted current, flowing first in one direction and then in the opposite direction is known as:

Answer 8

Alternating current.

Question 9

A _______ is an apparatus that changes alternating current into direct current.

Answer 9

Rectifier.

Question 10

The unit that measures the pressure or force that pushes the flow of electrons forward through a conductor is called a ______.

Answer 10

Volt.

Question 11

An amp or ______ is the unit that measures the amount of an electric current.

Answer 11

Ampere.

Question 12

A ___________ is one-thousandth of an ampere.

Answer 12

Milliampere.

Question 13

A unit that measures the resistance of an electric current.

Answer 13

Ohm.

Question 14

A watt measures:

Answer 14

How much energy is being used in 1 second.

Question 15

A kilowatt is ______ watts.

Answer 15

1,000.

Question 16

What is the purpose of a fuse?

Answer 16

It prevents excessive current from passing through a circuit.

Question 17

A switch that automatically interrupts or shuts off an electric circuit at the first indication of an overload:

Answer 17

A circuit breaker.

Question 18

The _______ connection completes the circuit and carries the current safely away to the ground.

Answer 18

Ground.

Question 19

________ indicates the negative or positive pole of an electric current.

Answer 19

Polarity.

Question 20

Iontophoresis is the process of:

Answer 20

Introducing water-soluble products into the skin with the use of electric current.

Question 21

Cataphoresis is the process of:

Answer 21

Infuses a positive (acid) product into the skin.

Question 22

Anaphoresis is the process of infusing:

Answer 22

Alkaline products into the skin.

Question 23

A process used to soften and emulsify grease deposits (oil) and blackheads in the hair follicles.

Answer 23

Desincrustation.

Question 24

_________ is the application of light rays to the skin for the treatment of acne, wrinkles,

Answer 24

Phototherapy.

Question 25

A _________ is the distance between the peaks of two successive waves of electromagnetic radiation.

Answer 25

Wavelength.

Question 26

Shorter wavelengths have a higher ______ than a longer wavelength.

Answer 26

Frequency.

Question 27

Visible light makes up _____ percent of natural sunlight.

Answer 27

35.

Question 28

Gamma rays have the _______ wavelengths.

Answer 28

Shortest.

Question 29

Radio rays/waves have the ______ wavelengths.

Answer 29

Longest.

Question 30

____ rays also called actinic rays make up __ percent of natural sunlight.

Answer 30

UV, 65%.

Question 31

UVB rays are also called _________ rays.

Answer 31

Burning.

Question 32

What percentage of cancer cases are caused by overexposure to UV radiation?

Answer 32

90%.

Question 33

UV light contains few heat rays, is the least penetrating and has ______ and chemical benefits.

Answer 33

Germicidal.

Question 34

Light Amplification Stimulation Emission of Radiation is long for:

Answer 34

Laser.

Question 35

Which device uses multiple colors of focused light to treat spider veins and brown spots?

Answer 35

Intense pulse light.

Question 36

LED is the acronym for:

Answer 36

Light Emitting Diode.

Question 37

UVA penetrates directly into the dermis of the skin and is known as the _____ ray.

Answer 37

Aging.

Question 38

What does yellow light do for the skin?

Answer 38

Aids in reducing inflammation and swelling.