Chapter 11 Flashcards
The flow of electricity along a conductor is called a(n):
A. electric charge
B. electric current
C. swirl
D. spark
B. electric current
Electricity is described as a form of:
A. energy
B. movement
C. negativity
D. shortness
A. energy
Metals used in electric wiring and motors are materials that are considered good electricity:
A. current
B. conductors
C. wattage
D. ohms
B. conductors
Electric wires are usually covered with a rubber substance that is used as an insulator or:
A. nonconductor
B. mechanical
C. current
D. voltage
A. nonconductor
The path of electricity from the generating source through conductor and back to the original source is called a(n):
A. electric charge
B. alternating charge
C. insulator
D. complete circuit
D. complete circuit
Electric current that is constant, even-flowing and travels in one direction is:
A. direct current
B. direct volt
C. converter
D. active current
A. direct current
The device that changes direct current to alternating current is a(n):
A. convex
B. converter
C. voltage
D. ohm
B. converter
A rapid and interrupted current that flows in one direction then in the opposite direction is:
A. rectifier current
B. alternating current
C. active current
D. direct current
B. alternating current
The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a(n):
A. amp
B. rectifier
C. apparatus
D. volt
D. volt
The unit that measures the amount electric current is a(n):
A. battery
B. volt
C. ampere
D. Charger
C. ampere
The current that is used for facial and scalp treatments is measured in:
A. milliamperes
B. direct current
C. wattage
D. voltage
A. milliamperes
The unit that measures how much electric energy is being used in one second is a(n):
A. ohm
B. watt
C. amp
D. volt
B. watt
The device that prevents excessive current from passing through a circuit is a(n):
A. fuse
B. battery
C. kilowatt
D. ampere
A. fuse
A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n):
A. voltage regulator
B. ampere current
C. circuit breaker
D. battery charger
C. circuit breaker
An important way of promoting electrical safety is the principal of:
A. grounding
B. connections
C. low frequency
D. visible light
A. grounding
An applicator tthat is used for directing the electric current from the machine to the clients skin is called a(n):
A. steamer
B. anaphoresis
C. polarity
D. electrode
D. electrode
The positive electrode of an electrotherapy device is called a(n):
A. frequency
B. anode
C. vaporizer
D. accelerating
B. anode
The negative electrode of an electrotherapy device is called a(n):
A. cathode
B. electron
C. carbon
D. therapeutic
A. cathode
The most commonly used modality that is a constant and direct current is:
A. indirect current
B. active current
C. galvanic current
D. tesla curent
C. galvanic current
The process of introducing water-soluble products into the skin with the use of electric current is called:
A. chemical reaction
B. inactive electrodes
C. iontophoresis
D. electrodes
C. iontophoresis
A process that forces liquids into the tissues from the negative toward the positive pole is called:
A. anaphoresis
B. desincrustation
C. iontophoresis
D. therapeutic light
A. anaphoresis
A thermal or heat-producing current with a high rate of oscillation that is used for scalp and facial treatments is:
A. tesla current
B. direct current
C.alternating current
D. infrared current
A. tesla current
Visible light, the part of the electromagnetic radiation spectrum that we can see, makes up what percentage of natural sunlight?
A. 35%
B. 25%
C. 60%
D. 50%
A. 35%
The long wavelengths that peneytrate t he deepest and produce the most heat are:
A. infrared rays
B. blue rays
C. ultraviolet rays
D. natural rays
A. infrared rays
To avoid damage to the eyes of a client or practitioner when using light therapy treatments, the eyes should be protected with saturated cotton pads or:
A. safety goggles
B. sunscreen
C. plastic cap
D. towels
A. safety goggles
