Foundations ch 7

Question 1

When using ________ current, the active electrode is the electrode used on the area to be treated.

direct
galvanic
alternating
electric

Answer 1

direct
galvanic*
alternating
electric

Question 2

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

Answer 2

high frequency
alternating
galvanic*
direct

Question 3

For safety, use no more than ________ plug(s) in each outlet.

three
four
two
one

Answer 3

three
four
two
one*

Question 4

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

Answer 4

overporosity and sanguinity
dryness and scaling
damage and cancer*
allergies and irritation

Question 5

The unit that measures how much electric energy is being used in one second is a(n) _________.

volt
ampere
watt
ohm

Answer 5

volt
ampere
watt*
ohm

Question 6

A wavelength is the distance between successive peaks of ________ waves.

electromagnetic
infrared
electrical charge
galvanic

Answer 6

electromagnetic*
infrared
electrical charge
galvanic

Question 7

Microcurrent can be used to _________ and restore elasticity.

increase muscle tone
reduce lymph
decrease metabolism
prevent acidic reactions

Answer 7

increase muscle tone*
reduce lymph
decrease metabolism
prevent acidic reactions

Question 8

Grounding completes a(n) _________ and carries the current safely away.

micro current
electron flow
electric charge
electric circuit

Answer 8

micro current
electron flow
electric charge
electric circuit*

Question 9

Electric _________ refers to the flow of electricity along a conductor.

insulation
circuitry
current
resistance

Answer 9

insulation
circuitry
current*
resistance

Question 10

The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n) _________.

ohm
volt
amp
watt

Answer 10

ohm
volt*
amp
watt

Question 11

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

Answer 11

circuit breaker*
voltage regulator
battery charger
ampere interrupter

Question 12

All of the electrical appliances you use should ________.

have a two-prong plug
be battery
be UL certified
be used near water

Answer 12

have a two-prong plug
be battery
be UL certified*
be used near water

Question 13

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

Answer 13

circuit
conductor
fuse
insulator*

Question 14

Catalysts are substances that speed up ________ reactions.

alkaline
protonic
chemical
acidic

Answer 14

alkaline
protonic
chemical*
acidic

Question 15

The movement of electrons from one atom to another along a conductor is called _________.

sparks
energy flow
an electric charge
electricity

Answer 15

sparks
energy flow*
an electric charge
electricity

Question 16

An apparatus that changes direct current to alternating current is a(n) _________.

rectifier
fuse box
inverter
circuit breaker

Answer 16

rectifier
fuse box
inverter*
circuit breaker

Question 17

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

Answer 17

has the shortest wavelength
is often called the “burning light”
is blocked by the ozone layer
is often used in tanning beds*

Question 18

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

Answer 18

electromagnetic spectrum
radiation spectrum
visible spectrum of light*
spectrum of radiance

Question 19

A ________ is an extremely low level of electricity
that mirrors the body’s natural electrical impulses.

bio current
milliampere
micro current
minicurrent

Answer 19

bio current
milliampere
micro current*
minicurrent

Question 20

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

Answer 20

alternating*
rectified
active
direct

Question 21

Which unit measures the resistance of an electric current?

volt
amp
ohm
watt

Answer 21

volt
amp
ohm*
watt

Question 22

The device that prevents excessive current from passing through a circuit is called a(n) _________.

kilowatt
fuse
ampere
battery

Answer 22

kilowatt
fuse*
ampere
battery

Question 23

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

Answer 23

Tesla alternating
ultraviolet
burning
Tesla high-frequency*

Question 24

Which is considered a god conductor?

cement
tap water
silk
rubber

Answer 24

cement
tap water*
silk
rubber

Question 25

The negative electrode of an electrotherapy device is called a(n) ________.

anode
carbide
cathode
electron

Answer 25

anode
carbide
cathode*
electron