Questions and Answers
1,000 watts is equal to how many kilowatts?
Another name for microcurrent is?
sinusoidal
What is the indirect method in EMS?
the method where a salon professional wears a wristband with a moistened electrode
An amp is a unit of electric?
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What is the fifth type of electrode mentioned?
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What does an Underwriters Laboratory (UL) designation indicate?
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What method of high-frequency current is used when the client holds the active electrode?
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What effect is created when an electric current travels through a water-based solution?
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Which electrotherapy treatment can help in deep-pore cleansing?
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Fluorescent lighting is an economical and long-lasting light source.
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Which current has chemical effects caused by passing through acid or alkaline solutions?
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A current in which electrons move at an even rate and flow in only one direction is called?
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What is the process of forcing an acid or alkali into the skin by applying current?
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How many watts equal one kilowatt?
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What is the longest wavelength?
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Electric current in a conductor causes heat by?
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What is true of visible light?
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The electrode that is negatively charged during an electrotherapy treatment is known as?
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What type of outlet is recommended for areas where water and electricity could come into contact?
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Which type of light can be broken into its individual wavelengths by a prism?
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Which type of light has the shortest wavelength?
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What is the minimum distance an infrared lamp must be placed from the client's face during a facial?
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What can occur any time a foreign conductor comes in contact with a wire carrying current to an appliance?
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EMS is an alternating current used during scalp and facial massage to cause?
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Which benefit is derived from UV light?
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What changes alternating current to direct current?
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What is NOT a temporary effect of the positive pole of galvanic current?
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What temporary effect will a negative electrode pole produce when applying galvanic current?
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A volt measures?
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An alternating current that can be adjusted to different voltages to produce heat is?
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Incandescent light normally produces what color tones in objects it lights?
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Most of the electricity you use daily consists of a flow of tiny, negatively charged particles called?
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A volt is a unit of electric?
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Materials that best transport electricity are called?
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What uses a positive pole or electrode to force positively charged solutions into the skin?
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Study Notes
Electricity Basics
- 1 kilowatt equals 1,000 watts, a unit of power.
- An amp is a unit measuring electric strength.
Electrotherapy
- Microcurrent is also known as sinusoidal current.
- EMS (Electrical Muscle Stimulation) involves an indirect method with a wristband and moistened electrode.
- High-frequency currents can be applied indirectly when the client holds the active electrode.
- Electrochemical effects are created when electric current travels through water-based solutions.
- Desincrustation is an electrotherapy treatment used for deep-pore cleansing.
- Phoresis is the process of using current to drive acids or alkalis into the skin.
Electric Components
- The most common electrodes include comb, rake, wrist, carbon, and massage roller electrodes.
- The cathode is the negatively charged electrode during treatments.
- A volt measures the pressure that pushes electrons through a circuit.
Lighting and Current Types
- Fluorescent lighting is economical and long-lasting.
- Galvanic current causes chemical effects through acid or alkaline solutions in tissue.
- Direct current flows in one direction, while alternating current can be adjusted to produce heat.
- High-frequency current is also an alternating type used for muscle contractions in massage.
Safety and Standards
- Underwriters Laboratory (UL) designation indicates safety certification for appliances.
- GFCI (Ground Fault Circuit Interrupter) outlets are recommended in wet areas to prevent electrical hazards.
Light Properties
- Visible light waves can be absorbed or reflected when they hit an object.
- White light can be broken into individual wavelengths with a prism, whereas ultraviolet light has the shortest wavelengths.
- Infrared rays have the longest wavelengths, and the minimum distance for infrared lamps from a client’s face is 30 inches.
Electrical Properties
- Conductors are materials that effectively transport electricity.
- Short circuits can occur when a foreign conductor contacts a live wire.
- Increasing resistance in the line generates heat due to electric current.
Benefits and Effects
- UV light in small doses can help tan the skin.
- Negative electrode during galvanic current increases blood flow.
- The positive pole of galvanic current does not soften tissue; this is a misconception.
Miscellaneous
- Incandescent light produces redder tones in illuminated objects.
- Most daily electricity usage involves the movement of electrons (negatively charged particles).
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Test your knowledge of electricity with this engaging quiz flashcard set. Each card covers essential concepts and terminology related to electrical units and methods. Perfect for students or professionals looking to refresh their understanding of electric principles.
