Hair School Chapter 13 Flashcards
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Hair School Chapter 13 Flashcards

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@KeenMaxwell9176

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Questions and Answers

All materials can be classified as conductors or nonconductors.

True

A corded hair dryer runs on direct current.

False

The electricity in a house is measured in milliamperes per hour.

False

A wire that is not large enough to carry the electrical current passing through it will overheat.

<p>True</p> Signup and view all the answers

Appliances should be disconnected from the electrical outlet when not in use.

<p>True</p> Signup and view all the answers

When using galvanic current, the active electrode is used on the area to be treated.

<p>True</p> Signup and view all the answers

Microcurrent travels throughout the entire body.

<p>False</p> Signup and view all the answers

The light found on each end of the visible spectrum of light is invisible to the naked eye.

<p>True</p> Signup and view all the answers

UVA light is most associated with sunburns.

<p>False</p> Signup and view all the answers

Intense pulse light can only be used under the supervision of a physician.

<p>True</p> Signup and view all the answers

What should you do if you find a mess of electrical appliances plugged into two outlets?

<p>Find the cosmetologist in charge of the station and offer to help them find other options for powering their appliances.</p> Signup and view all the answers

Which of the following is not an insulator?

<p>Water</p> Signup and view all the answers

Which of the following items does not use direct current (DC)?

<p>Curling iron</p> Signup and view all the answers

Which of the following is a conductor?

<p>Copper</p> Signup and view all the answers

A safety device that switches off a circuit at the first indication of overload is called?

<p>circuit breaker</p> Signup and view all the answers

Which of the following is not among the guidelines for using electrical appliances in the salon?

<p>Never use two-pronged plugs.</p> Signup and view all the answers

What are the three main types of modality?

<p>Each produces a different effect on the skin.</p> Signup and view all the answers

What does Tesla refer to in this context?

<p>This high-frequency heat-producing current uses a single electrode.</p> Signup and view all the answers

What is microcurrent?

<p>Produces a low-level current that does not travel through the body.</p> Signup and view all the answers

What is galvanic current?

<p>DC that makes chemical changes in the body without breaking the skin.</p> Signup and view all the answers

What are contraindications?

<p>Signals to not do a procedure on a person for health or other reasons.</p> Signup and view all the answers

What are electrodes?

<p>This probe device directs an electric current to the client's skin.</p> Signup and view all the answers

What is a cathode?

<p>The negative pole of an electric current; usually colored black.</p> Signup and view all the answers

What is an anode?

<p>The positive pole of an electric current; usually colored red.</p> Signup and view all the answers

Study Notes

Electrical Concepts in Hair Care

  • Materials can be classified as conductors (which conduct electricity) or nonconductors (which do not conduct electricity).
  • Corded hair dryers operate on alternating current (AC), not direct current (DC).
  • Household electricity usage is measured in kilowatts per hour, not milliamperes per hour.

Electrical Safety

  • Insufficiently sized wires can overheat due to excess electrical current, activating safety devices like fuses or circuit breakers preventing fires.
  • Disconnect appliances from outlets when not in use to avoid hazards; unplug by the plug, not the cord.

Electrical Treatments

  • In galvanic current treatments, the active electrode is applied to the area needing treatment; the inactive electrode is used at the opposite pole.
  • Microcurrent is localized and does not travel through the entire body; it only affects the treated area.
  • Invisible light represents wavelengths at either end of the visible spectrum, undetectable by the naked eye.

UV Light Types

  • UVB light, not UVA, is primarily associated with causing sunburn.

Medical Supervision

  • Intense pulse light treatments must only be performed under a physician's supervision.

Salon Electrical Practices

  • If electrical appliances are in unsafe condition, contact the responsible cosmetologist to address the situation.
  • Water acts as a conductor, as ions allow it to conduct electricity.

Current Types

  • Curling irons use alternating current (AC) instead of direct current (DC).
  • Copper is recognized as a superior conductor of electricity, commonly used in wiring and motors.

Safety Devices

  • A circuit breaker automatically interrupts the electrical circuit when an overload is detected.

Electrical Plug Guidelines

  • Two-pronged plugs are safe and acceptable; three-pronged plugs offer additional safety but are not mandatory.

Modalities and Electrical Currents

  • There are three main modalities that produce varied effects on the skin, enhancing treatment efficacy.
  • Tesla current generates high-frequency, heat-producing effects using a single electrode.
  • Microcurrent delivers a low-level current limited to local treatment areas.
  • Galvanic current is characterized as direct current and induces chemical changes while remaining subdermal.

Additional Terms

  • Contraindications indicate health or other reasons to avoid certain procedures on clients.
  • Electrodes are devices directing electric currents to the skin, essential for various treatments.
  • The cathode refers to the negative electrode, typically black, while the anode is the positive electrode, usually red.

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Description

Test your knowledge with these flashcards covering key concepts from Chapter 13 of Hair School. Learn about conductors, nonconductors, and electrical currents relevant to hairdryers. Perfect for students preparing for their exams or for anyone looking to refresh their hairdressing knowledge.

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