Basics of Electricity Flashcards
the movement of electrons from one atom to another along a conductor is called _____
a. an electric charge
b. electricity
c. energy flow
d. sparks
b. electricity
the unit that measures the pressure or force that pushes the electric current forward through a conductor is
a. an amp
b. a watt
c. amp
d. volt
d. volt
which unit measures the resistance of an electric current
a. ohm
b. watt
c. amp
d. volt
a. ohm
only licensed professionals should use ______
a. hair dyers
b. electric steamers
c. light therapy
d. electric vaporizers
c. light therapy
invisible light is the light at either end of the ______ that is invisible to the naked eye
a. electromagnetic spectrum
b. spectrum of radiance
c. spectrum of radiation
d. visible spectrum of light
d. visible spectrum of light
constant and direct current, having a positive and negative pole, which produces chemical changes when it passes through the tissues and fluids of the body is known as ______ current
a. galvanic
b. alternating
c. direct
d. conductive
a. galvanic
a medical device that uses multiple colors and wavelengths of focused light to treat conditions such as excessive hair and spider veins is _____
a. a laser
b. an infrared light device
c. an intense pulse light
d. a light-emitting diode
c. an intense pulse light
the thermal or heat producing current with a high rate of oscillation or vibration that is commonly used for scalp and facial treatments is called
a. a tesla light emitting diode
b. an ultraviolet light
c. an intense pulse light
d. a telsa high frequency current
d. a telsa high frequency current
a device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin is ____
a. a laser
b. an infrared light device
c. an intense pulse light.
d. a light emitting diode
d. a light emitting diode
for safety, use no more than ____ plugs in each outlet
a. one
b. two
c. three
d. four
a. one
the use of ____ light reduces acne and bacteria on the skin
a. green
b. red
c. yellow
d. blue
d. blue
the unit that measures how much electric energy is being used in one second is _____
a. an ohm
b. a volt
c. a watt
d. ampere
c. a watt
All the electrical appliances you use should be __ certified.
a. USDA
b. UL
c. FDA
d. EPA
b. UL
All lasers work by selective _____, a process that turns the light from a laser device into heat.
a. photothermolysis
b. iontophoresis
c. anaphoresis
d. grounding
a. photothermolysis
ohm vs amp vs watt vs volt
ohm - resistance
amp - strength
watt- per second
volt - pressure or force
