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Foundations chapter 7

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