Foundations ch 7 Flashcards
When using ________ current, the active electrode is the electrode used on the area to be treated.
direct
galvanic
alternating
electric
direct
galvanic*
alternating
electric
Constant and direct current that has a positive and negative pole and produces chemical changes when it passes through the tissues and fluids of the body is known as _________ current.
high frequency
alternating
galvanic
direct
high frequency
alternating
galvanic*
direct
For safety, use no more than ________ plug(s) in each outlet.
three
four
two
one
three
four
two
one*
The application of UV light must be done with the utmost care in a proper manner by a qualified professional because overexposure can lead to skin _________.
overporosity and sanguinity
dryness and scaling
damage and cancer
allergies and irritation
overporosity and sanguinity
dryness and scaling
damage and cancer*
allergies and irritation
The unit that measures how much electric energy is being used in one second is a(n) _________.
volt
ampere
watt
ohm
volt
ampere
watt*
ohm
A wavelength is the distance between successive peaks of ________ waves.
electromagnetic
infrared
electrical charge
galvanic
electromagnetic*
infrared
electrical charge
galvanic
Microcurrent can be used to _________ and restore elasticity.
increase muscle tone
reduce lymph
decrease metabolism
prevent acidic reactions
increase muscle tone*
reduce lymph
decrease metabolism
prevent acidic reactions
Grounding completes a(n) _________ and carries the current safely away.
micro current
electron flow
electric charge
electric circuit
micro current
electron flow
electric charge
electric circuit*
Electric _________ refers to the flow of electricity along a conductor.
insulation
circuitry
current
resistance
insulation
circuitry
current*
resistance
The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n) _________.
ohm
volt
amp
watt
ohm
volt*
amp
watt
A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n) _________.
circuit breaker
voltage regulator
battery charger
ampere interrupter
circuit breaker*
voltage regulator
battery charger
ampere interrupter
All of the electrical appliances you use should ________.
have a two-prong plug
be battery
be UL certified
be used near water
have a two-prong plug
be battery
be UL certified*
be used near water
Electric wires can be covered with a material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n) __________.
circuit
conductor
fuse
insulator
circuit
conductor
fuse
insulator*
Catalysts are substances that speed up ________ reactions.
alkaline
protonic
chemical
acidic
alkaline
protonic
chemical*
acidic
The movement of electrons from one atom to another along a conductor is called _________.
sparks
energy flow
an electric charge
electricity
sparks
energy flow*
an electric charge
electricity
An apparatus that changes direct current to alternating current is a(n) _________.
rectifier
fuse box
inverter
circuit breaker
rectifier
fuse box
inverter*
circuit breaker
Ultraviolet A (UVA) light _________.
has the shortest wavelength
is often called the “burning light”
is blocked by the ozone layer
is often used in tanning beds
has the shortest wavelength
is often called the “burning light”
is blocked by the ozone layer
is often used in tanning beds*
Invisible light is the light at either of the ________ that is invisible to the naked eye.
electromagnetic spectrum
radiation spectrum
visible spectrum of light
spectrum of radiance
electromagnetic spectrum
radiation spectrum
visible spectrum of light*
spectrum of radiance
A ________ is an extremely low level of electricity
that mirrors the body’s natural electrical impulses.
bio current
milliampere
micro current
minicurrent
bio current
milliampere
micro current*
minicurrent
The term _________ current refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction.
alternating
rectified
active
direct
alternating*
rectified
active
direct
Which unit measures the resistance of an electric current?
volt
amp
ohm
watt
volt
amp
ohm*
watt
The device that prevents excessive current from passing through a circuit is called a(n) _________.
kilowatt
fuse
ampere
battery
kilowatt
fuse*
ampere
battery
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 ________ current.
Tesla alternating
ultraviolet
burning
Tesla high-frequency
Tesla alternating
ultraviolet
burning
Tesla high-frequency*
Which is considered a god conductor?
cement
tap water
silk
rubber
cement
tap water*
silk
rubber
The negative electrode of an electrotherapy device is called a(n) ________.
anode
carbide
cathode
electron
anode
carbide
cathode*
electron
