Ch 8 - Electricity Flashcards
What does the acronym LED stand for
Light-emitting diode
What measure is one-thousandth of a ampere
Milliampere
What term refers to currents used as facial and scalp treatments
Modalities
What apparatus changes AC to DC
Rectifier
What describes Tesla high-frequency current
High rate of oscillation and vibration
What is a description of white light
Combination of all visible rays of the spectrum
What is yellow LED light used for
Reducing inflammation and swelling
What is red LED light used for
Stimulating circulation
What is green LED light used for
Detoxifying the skin
What is the primary source of light used in facial and scalp
Visible light
What is a device in which UVA radiation in used
Tanning bed
What is a term commonly used in reference to UVB radiation
Burning light
What is true of UVC radiation
It is the most dangerous type of UV radiation
What term refers to a color component within the skin such as blood or melanin
Chromophore
How does red LED light affect cellular processes
Increases cellular processes
What is NOT a condition that intense pulse light is used to treat
Albinism
What is a wavelength
Distance between two successive peaks of electromagnetic waves
What does a watt measure
How much electric energy is used in 1 second
What do volts measure
Force pushing electrons forward through a conductor
What do ohms measure
Resistance of electric current
What is the term for rapid and interrupted current, flowing first one direction and then in the opposite direction
Alternating current
What is the term for a constant, even flowing current that travels in one direction only
Direct current
What unit measures the amount of an electric current
Amp
What type of LED light is used to treat acne
Blue
What is the term for a negative electrode
Cathode
What is the movement of particles around an atom that created pure energy
Electricity
What should you do on a regular basis
Inspect electrical equipment
What is ionization
Introducing water-soluble products into the skin with electric current
What is cataphoresis
Forcing acidic substances into deeper tissues using galvanic current
What is anaphoresis
Forcing liquids into tissues from the negative toward the positive pole
What is the other method for applying high-frequency current, besides indirect application
Direct surface application
What percentage of natural sunlight does invisible infrared light comprise
60 percent
What is a complete circuit
Path of current from the source through conductors and back
What is the term for any substance that easily transmits electricity
Conductor
What is the device that prevents excessive current from passing through a circuit
Fuse
What completes a circuit and carries the current away safely
Ground
What are invisible rays with long wavelengths
Infrared light rays
What is the term for a substance that does not easily transmit electricity
Insulator
What is the measurement for 1,000 watts
Kilowatt
What is NOT a condition treated with light therapy
Obesity
