Sunlight & UV Rays
The type of light blocked by the ozone layer is__________.
UVC
An insulator or _____________ is a substance that does not easily transmit electricity.
nonconductor
If you drop an electrical appliance in water, you should
___________________.
never use it again
The distance between two successive peaks of electromagnetic waves is called __________________.
wavelength
The term used for measuring the resistance of an electric current is ________________ .
ohm
Ultraviolet rays, also known as cold light, make up __________ percent of natural light.
5
What electrical term is abbreviated as AC?
alternating current
. Which safety devices prevent the overheating of electric wires?
fuses and circuit breakers
The different types of currents used in facial and scalp treatments are called _______________________.
modalities
The term used for measuring how much electric energy is being used in one second is
watt
Thirty-five percent of natural sunlight is made up of _____________ .
visible light
What apparatus changes alternating current (AC) to direct current (DC)?
rectifier
All electrical appliances used in the salon, spa, or barbershop should be __________ certified.
UL
An extremely low level of electricity that mirrors the body’s natural electricity impulses is known as ____________ .
microcurrent
Commonly used modalities in beauty and wellness are Tesla high-frequency current, microcurrent, and _________ current.
galvanic
Treatment by means of light rays is called light
therapy
What unit of measure is equivalent to 1/1,000 of an ampere?
milliampere
A GFI protects from electrical shock by____________ a circuit when there is a leak.
interrupting
are substances that speed up chemical reactions
Catalysts
The process of introducing water-soluble products into the skin with the use of electric current is known as _______.
iontophoresis
UVB is often called the burning light because it is most associated with ______________.
sunburns
The term used for measuring the strength of an electric current ____________.
ampere
What apparatus changes alternating current (AC) to direct current (DC)?
rectifier
Which apparatus conducts electric current from an electrotherapy device to the client’s skin?
electrode
The current used in facial and scalp treatments is measured in ___________ .
milliamperes