FREE SCIENCE AND STUDY GAMES ABOUT ELECTRICITY

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FREE SCIENCE AND STUDY GAMES ABOUT ELECTRICITY

BASICS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -96 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: sensory modality

Answer:

the type of sensory receptor activated by a stimulus, plays the primary role in coding the stimulus modality

Question 2: kilowatt (K)

Answer:

1,000 watts

Question 3: red light

Answer:

therapeutic light used on dry skin in combination with oils and creams

Question 4: insulator

Answer:

substance that does not easily transmit electricity

Question 5: faradic current generator

Answer:

used for stimulation of muscles and nerves of a body

Question 6: alternating current (AC)

Answer:

current flowing first in one direction and then in the opposite direction

Question 7: white light therapy

Answer:

relieves pain in the back of the neck and shoulders; produces some chemical and germicidal effects; relaxes muscles

Question 8: converter

Answer:

apparatus that changes direct current to alternating current

Question 9: rectifier

Answer:

apparatus that changes alternating current to direct current

Question 10: ampere (A)

Answer:

also amp, it is the measurement of the number of electrons passing through a given point in one second intervals

Question 11: amp (A)

Answer:

also ampere, unit that measures the amount of an electric current

Question 12: infrared light therapy

Answer:

heats and relaxes the skin; dialates blood vessels and increases circulation; produces chemical changes; increases metabolism; increases production of perspiration and oil; deep penetration relieves pain in sore muscles; soothes nerves

Question 13: blue light

Answer:

light therapy that should be used on oily skin only

Question 14: cathode (-)

Answer:

negative electrode

Question 15: electromagnetic radiation

Answer:

energy in the form of electromagnetic waves

Question 16: alternating current (AC)

Answer:

rapid and interrupted current

Question 17: microcurrent

Answer:

improves circulation and increases collagen and elastin production

Question 18: galvanic current

Answer:

uses a positive and negative pole to produce the chemical changes of desincrustation, an iontophoresis

Question 19: ultraviolet rays

Answer:

also called cold rays or actinic rays

Question 20: describe direct surface application

Answer:

the esthetician holds the handpiece, where the glass electrode is inserted, and applies it directly to the client's skin, moving it slowly over the entire face for stimulation

Question 21: nonconductor

Answer:

also insulator,substance that does not easily transmit electricity

Question 22: microcurrent

Answer:

an extremely low level of electricity current that mirror's the body's own natural electrical impulses

Question 23: electrode

Answer:

applicator for directing the electric current from the machine to the clients's skin

Question 24: desincrustation

Answer:

the use of galvanic current to create an alkaline chemical reaction that emulsifies or liquefies sebum and debris

Question 25: milliampere

Answer:

one-thousandth of an ampere

Question 26: red light

Answer:

light therapy that is used on dry skin in combination with oils and creams

Question 27: ultraviolet light therapy

Answer:

increases the elimination of waste products; improves the flow of blood and lymph; has a germicidal and antibactreial effect; produces vitamin D in the skin; can be used to treat rickets, psoriasis, and acne

Question 28: polarity

Answer:

negative or positive pole of an electric current