____ is a form of energy that produces magnetic, chemical, or thermal effects while in motion.

An example of a conductor is ____.

An electric ____ is composed of a conductor and an insulator.

The current in a circuit can be controlled with an adjustable ____ called a rheostat.

A ____ is a device that changes alternating current to direct current.

A ____ is a device that prevents too much current from passing through a circuit.

The function of a ____ is to shut off an electric circuit at the first sign of overload.

All electrical appliances must have ____ electrical connections.

The ____ applicators that direct electric current from a machine to a client’s skin are called electrodes.

In electrotherapy, the ____ is the positive pole.

The ____ modality, which produces chemical changes when passed through tissues and fluids, is the galvanic current.

The ____ current produces heat.

About ____percent of natural sunlight is made up of visible light.

UV rays are used in tanning booths and ____ the skin tissue.

____ rays are destructive to bacteria, as well as to skin tissue if the skin is exposed to them for too long a period of time.

____ rays are pure heat rays.