NEW
Font size
WorksheetsFOUNDATIONS: Ch. 7, Electricity Review
Total questions: 40
Worksheet time: 20mins
The movement of electrons from one atom to another along a conductor is called:
An electric charge
Electricity
Energy flow
Sparks
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:
Insulator
Conductor
Circuit
Fuse
An apparatus that changes direct current to alternating current:
Rectifier
Circuit breaker
Inverter
Fuse box
The term __ current refers to a rapid and interrupted current:
Rectified
Alternating
Active
Direct
The unit that measures the pressure or force that pushes the electric current forward through a conductor:
Amp
Watt
Ohm
Volt
Which unit measures the resistance of an electric current?
Ohm
Watt
Amp
Volt
The device that prevents excessive current from passing through a circuit is called a/n:
Fuse
Battery
Kilowatt
Ampere
The switch that automatically interrupts or shuts off an electric current at the first indication of an overload:
Voltage regulator
Ampere interrupter
Circuit breaker
Battery charger
The negative electrode of an electrotherapy device:
Anode
Electron
Carbide
Cathode
Grounding completes a/n __ and carries the current safely away:
Electric charge
Electric current
Electron flow
Microcurrent
All of the electrical appliances you use should:
Be battery-operated
Be UL certified
Have a two-prong plug
Be used near water
When using __ current, the active electrode is the electrode used on the area to be treated:
Alternating
Direct
Electric
Galvanic
Microcurrent can be used to __ and restore elasticity:
Decrease metabolism
Increase muscle tone
Reduce lymph
Prevent acidic reactions
A wavelength is the distance between successive peaks of __ waves:
Electric
Electromagnetic
Galvanic
Infrared
Invisible light is the light at either end of the __ that is invisible to the naked eye:
Electromagnetic spectrum
Spectrum of radiance
Radiation spectrum
Visible spectrum of light
UVA light:
Is often used in tanning beds
Has the shortest wavelength
Is often called burning light
Is blocked by the ozone layer
Catalysts are substances that speed up __ reactions:
Chemical
Acidic
Alkaline
Photoxic
Constant and direct current that has a positive and negative poll and produces chemical changes when it passes through the tissues and fluids of the body is known as:
Galvanic current
Alternating current
Direct current
High-frequency current
__ is an extremely low level of electricity that mirrors the body’s natural electrical impulses:
Minicurrent
Microcurrent
Milliampere
Biocurrent
The thermal or heat producing current with a high rate of isolation or vibration that is commonly used for scalp and facial treatments:
Tesla alternating
Ultraviolet
Burning
Tesla high-frequency
For safety, use no more than __ in each outlet
One plug
Two plugs
Three plugs
Four plugs
The application of UV light must be done with the upmost care in a proper manner by a qualified professional because overexposure can lead to skin:
Allergies and irritation
Damage and cancer
Dryness and scaling
Overporosity and sanguinity
The unit that measures how much electric energy is being used in one second is a/n:
Ohm
Volt
Watt
Ampere
If you see sparks when plugging or unplugging an appliance, __
Fix it yourself immediately
Do not use the appliance or outlet until approved
Try a different outlet
Let it rest then try again later
Electric __ refers to the flow of electricity along a conductor:
Resistance
Insulation
Current
Circuitry
Which of the following is considered a good conductor?
Rubber
Cement
Silk
Tap water
You should disconnect an appliance by:
Pulling on the cord
Stepping on the cord
Pulling on the plug
Twisting the plug
You should not touch __ while using an electrical appliance:
Rubber
Metal
Glass
Plastic
__ is the process that introduces water-soluble products into the skin:
Iontophoresis
Desincrustation
Cannibalism
Anaerobics
Within the visible spectrum of light, ___ has the shortest wavelength and __ has the longest:
Yellow; red
Violet; red
Yellow; green
Violet; indigo
What light is known as cold light or actinic light?
Electromagnetic
Visible
Infrared
Ultraviolet
Direct current is produced by __ means:
Physical
Chemical
Mechanical
Photovoltaic
An appliance rated at 12 A must have a cord that is __ as thick as one rated at 6 A; otherwise, the cord might overheat and start a fire:
Half
Just
Twice
Four times
The electricity in your house is measured in __ per hour
Kilowatts
Volts
Kilovolts
Millamps
Which light rays are blocked by the ozone layer?
Visible light
UVB rays
UVC rays
Infrared light
A/n __ is designed to detect currents of a few milliamperes and trip a breaker at the receptacle or at the breaker panel to remove the shock hazard:
UL
GFI
MRI
UVB
Which of these is not a modality used in beauty and wellness services?
Tesla high-frequency current
Microcurrent
Integrated current
Galvanic current
Anaphoresis:
Softens tissues
Close is the pores
Contracts blood vessels
Produces acidic reactions
Remove lint from clothes dryers before each load to:
Save electricity
Reduce the chance of fire
When should you seek medical care after an electrical shock?
If you were touching metal
If your appliance’s cords are frayed or tangled
If a client witnessed the shock
If you are pregnant
