Milady Foundations Ch.7 Electricity & Electrical Safety
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31 Terms
Electricity use impacts ______ of the services that beauty professionals offer their clients.
all
Which of the following types of effects does electricity exhibit?
magnetic, thermal, and chemical
3 multiple choice options
Which of the following is TRUE of electricity?
It does not occupy space or have mass.
3 multiple choice options
Why is copper used in electrical wiring and electrical motors?
Because it is a good conductor.
Which of the following is an example of a conductor?
tap water
3 multiple choice options
Which of the following is a good example of an insulator?
wood
3 multiple choice options
Which of the following is TRUE of alternating current?
It is a rapid, interrupted current.
3 multiple choice options
Which of the following measures the resistance of electrical current?
an ohm
3 multiple choice options
What does a watt measure?
how much electric energy is being used in one second
Which of the following is an example of an electrical safety device that you may encounter when working in a salon, spa, or barbershop?
a circuit breaker
3 multiple choice options
What is an electrical safety device that is designed to prevent excessive current from passing through a circuit by blowing out or melting when a wire becomes too hot from overloading the circuit with too much current?
a fuse
Why is grounding important?
Because it protects against electrical shock.
The third circular electrical connection on a three-prong plug is called a ______.
grounding pin
In order to practice good electrical safety, ALWAYS ______.
disconnect appliances when they are not in use
The use of electrical currents to treat the skin is called ______.
electrotherapy
What is used as an applicator for directing electric current from an electrotherapy device to the client's skin?
an electrode
Which of the following BEST differentiates a positive electrode from a negative electrode?
The positive electrode is called an anode; the negative electrode is called a cathode.
3 multiple choice options
Which of the following is TRUE of a galvanic current?
It has a positive and a negative pole.
3 multiple choice options
What reactions can be expected when using cataphoresis?
a closing of pores
What reactions can be expected when using anaphoresis?
a stimulation of nerves
For which of the following would microcurrent be MOST useful?
reducing redness and inflammation
3 multiple choice options
Which of the following is Tesla high-frequency current used for?
improving germicidal action
3 multiple choice options
A condition that prohibits certain treatments is called a ______.
contraindication
The electromagnetic spectrum is the name given to ______.
all of the forms of energy that exist
How does energy move through space?
in waves
Which of the following BEST differentiates between long wavelengths and short wavelengths?
Long wavelengths have low frequency; short wavelengths have high frequency.
3 multiple choice options
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
35%
Which of the following is TRUE of infrared light?
It produces heat.
3 multiple choice options
Which of the following is TRUE of ultraviolet light?
It is invisible.
3 multiple choice options
Which type of light prompts the skin to produce beneficial vitamin D?
ultraviolet light
Light therapy is also known as ______.
phototherapy