Electricity
Current
Safety
Properties
radiation
100

This is a form of energy that produces physical, magnetic, chemical, or thermal effects when in motion.

What is electricity?

100

This is a constant, even-flowing current that travels in one direction only and produces a chemical reaction.

What is direct current (DC)?

100

The amount of electric energy being used in one second, or one joule per second.

What is one watt?

100

Do not touch any one of these while using an electrical appliance.

What are metals?

100

These can kill microorganisms and cause chemical reactions to happen more quickly than visible light while producing less heat.

What are Ultraviolet (UV) rays?

200

This  is the flow of electricity along a conductor.

What is electric current?

200

This is a rapid and interrupted current, flowing first in one direction and then in the opposite direction, that produces a mechanical action.

What is alternating current (AC)?

200

This is a safety device that prevents the overheating of electrical wires by preventing excessive current from passing through a circuit.

What is a fuse?

200

The different types of electric currents used in electrotherapy are called these.

What are modalities?

200

These are used in tanning booths and penetrate deeply into skin tissue.

What are UVA rays?

300

These are examples of conductors.

What is the human body, most metals, carbon, and watery solutions of acids and salts?

300

This is an adjustable resistor that is used for controlling the current in a circuit.

What is a  rheostat ?

300

This is used to automatically interrupt or shut off an electric current at the first indication of an overload.

What is a circuit breaker?

300

This is an applicator used to direct the electric current from the machine to the client’s skin.

What is an electrode?

300

These are used in ultraviolet germicidal irradiation to inactivate or destroy microorganisms.

What are UVC light rays?

400

What is composed of fine, twisted metal threads (the conductor), covered with a silk, plastic, or rubber coating (the insulator).

 

What is an electric wire?

400

This is the unit that measures electrical pressure, which pushes the flow of electrons forward through a conductor.

What is a volt?

400

These must have at least two electrical connections.

What are electrical appliances?

400

This indicates the negative or positive pole of an electric current.

What is the polarity?

400

This is also known as phototherapy.

What is light therapy?

500

These are examples of insulators.

What is rubber, silk, dry wood, glass, and cement?

 

500

Electrical resistance in an electric current is measured using this unit.

What is an ohm?

500

This is an outlet that senses imbalances within an electric circuit.

What is a ground fault interrupter?

500

This makes up only 35 percent of natural sunlight.

What is visible light?

500

When using this on a client, begin with a short exposure time of 2 to 3 minutes with the exposure gradually increasing over a period of days to 7 or 8 minutes.

What is ultraviolet light?