Electricity Milady Cosmetology Chapter 13 Exam Questions with Verified Answers ( 100% Pass)
Electricity - Answers The movement of particles around an atom that creates pure energy.
Define: Electric Current - Answers The flow of electricity along a conductor.
Conductor - Answers Any material that...
Electricity - Answers The movement of particles around an atom that creates pure energy.
Define: Electric Current - Answers The flow of electricity along a conductor.
Conductor - Answers Any material that conducts electricity. Meaning that electricity will pass threw the
material easily.
*Most metal are good conductors
*Copper is a good conductor
Nonconductor - Answers Is a material does not transmit electricity. Meaning does not allow electricity to
flow threw it.
*Also referred to as an Insulator
Complete Electric Circuit - Answers The path of negative and positive electric currents moving from the
generating source through the conductors and back to the generating source.
How fast does lightning travel? - Answers Lightning can travel up to speeds of 60,000 miles per hour
threw the air.
What are the two types of electric currents? - Answers 1)Direct Current (DC)
2)Alternating Current (AC)
Direct Current - Answers Is a constant even-flowing current that travels in one direction only and is
produced by chemical means.
Alternating Current - Answers Is a rapid and interrupted current, flowing first in one direction then I the
opposite direction, it is produced by mechanical means and changes direction 60 times per seconds.
*Corded hair dryers, Curling irons, Table lamps
Converter - Answers Is an apparatus that changes the direct current to alternating current.
Rectifier - Answers Is an apparatus that changes the alternating current to direct current.
How fast is electricity? - Answers Electricity is very fast: 186,000 miles per second. If you were to travel
that fast, you could go around the world eight times in the time it takes you to turn a light on.
Name some differences between direct and alternating current. - Answers Direct Current:
*Constant, even-flowing, Travels in one direction, and produced by chemical means.
, Alternating Current:
*Rapid and interrupted flow, Travels in two directions, and produced by mechanical means.
Volt - Answers Is the unit that measures the pressure of force that pushes electric current forward
through a conductor.
*Also known as V or Voltage
Ampere - Answers The measurement of the strength of a electric current.
*Also known as Amp
Milliampere - Answers It 1/1,000 of a ampere. This is used towards facial and scalp treatments because
the ampere is to strong.
*Also known as mA
Omh - Answers The measurement of the resistance of an electric current.
*Also known as O
Watt - Answers The measurement of how much electricity is being used that second.
Kilowatt - Answers Is 1,000 watts. In your house it is measured how many kilowatts per hour(kwh).
*Also known as K
Fuse - Answers Prevents excessive current from passing through a circuit.
Circuit Breaker - Answers A switch that automatically interrupts or shuts off an electrical current at the
first indication of an overload.
Grounding - Answers Completes an electrical circuit and carries the current safely away.
What company tests all the electrical appliances? - Answers Underwriters Laboratories (UL) certifies the
safety of electrical appliances. This certifies that they are safe when used according to manufactures
direction.
What is it called when electricity is use for skin treatments? - Answers Electrotherapy is when electric
currents are used to treat the skin.
Modalities - Answers Currents used in facials and scalp treats. Each modality has a different effect on the
skin.
*The main ones used are galvanic current, microcurrent, and the Tesla high-frequency current.
Electrode - Answers Is an applicator for directing electric current from an electrotherapy device to the
clients skin.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TutorJosh. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
