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Foundations chapter 7

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  • Which of the following is TRUE of the poles of an electric current?
    they are either positive or negative
    they are either left or right
    they are either direct or alternating
    they are either conductive or nonconductive
  • which of the following is an example of an electrical safety device that you may encounter when working in a salon, spa or barbershop?
    circuit breaker
    alternating current
    ampere
    conductor
  • which of the following types of energy is most likely associated with nulear power plants?
    radio waves
    gamma rays
    microwaves
    x-rays
  • which of the following should you do if you receive a light shock while using an electrical appliance?
    give the appliance a short break before using again
    unplug the appliance from the wall
    continue using with caution
    attempt to repair it immediately
  • which of the following is Tesla high-frequency current used for?
    improving germicidal action
    slowing blood circulation
    decreasing elimination and absorption
    decreasing skin metabolism
  • which of the following is TRUE of ultraviolet light?
    it slows chemical reactions
    it is hot light
    it has a long wavelength
    it is invisible
  • which of the following reactions can be expected when using anaphoresis?
    decrease in blood supply
    hardening of tissues
    stimulation of nerves
    closing of pores
  • for which of the following would microcurrent be MOST useful?
    reducing redness and inflamation
    decreasing muscle tone
    slowing healing
    removing the natural protective barrier of the skin
  • Electricity use impacts ______ of the services that beauty professionals offer their clients.
    All
  • which of the following is TRUE of galvanic current?
    it does not produce a chemical change
    it is ab indirect current
    it has a positive and negative pole
    it is a broken inconsistent current
  • which type of ligh prompts the skin to produce beneficial vitamin D?
    infrared light
    fluorescent light
    galvanic light
    ultraviolet light
  • how does energy move through space?
    in waves
    by physical force
    mechanically
    electromagnetically
  • which of the following is TRUE of fluorescent light?
    it is cooler than natural sunlight
    it is a yellow gold light
    it is warmer than natural sunlight
    it is a type of incandescent light
  • Which of the following is an example of a conductor?
    tap water
    glass
    cement
    rubber
  • What is TRUE of wire that is not large enough to carry the electrical current passing through it?
    it will electrocute the user
    it will not power the device
    it will overheat
    it will save energy
  • Which of the following is a good example of an insulator?
    copper
    steel
    tap water
    wood
  • which of the following measures the resistance of electrical current?
    a volt
    an ampere
    a watt
    an ohm
  • a condition that prohibits certain treatments is called a _____.
    contraindication
  • which percentage of natural sunlight is visible, making up the visible spectrum of light?
    95%
    35%
    70%
    10%
  • Why is copper used in electrical wiring and electrical motors?
    it is a good conductor
  • Which of the following types of effects does electricity exhibit?
    magnetic, thermal, chemical
    magnetic
    magnetic and thermal
    magnetic and chemical
  • Which of the following is TRUE of electricity and the beauty and wellness industry?
    most beauty pros wont interact with electricity directly
    most equipment beauty pros deal with are very dangerous
    electricity used in the industry is limited to clippers
    advanced machines require knowledge of electrical theory
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