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Foundations
Chapter 7
| Question | Answer |
|---|---|
| The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n) ____. | Volt |
| Which unit measures the resistance of an electric current? | OHM |
| The term _____ current refers to a rapid and interrupted current flowing first in One Direction, and then in the opposite direction. | Alternating |
| Constant and direct current that has a positive and negative poll and produces chemical changes when it passes through the tissue and fluids of the body is known as _____ current. | Galvanic |
| Catalyst are substances that speed up ___ Reactions. | Chemical |
| AN APPARATUS that changes direct current to alternating current is a(n) _____ | Inverter |
| Electric wires can be covered with the material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n) _____ | Insulator |
| The movement of electrons from one atom to another along a conductor is called____ | Electricity |
| When using______ current, the active electrode is the electrode used on the area to be treated. | Galvanic |
| All of the electrical appliances you use should_____ | UL certified |
| Which is considered a good conductor? | Tap water |
| The negative electrode of an electrotherapy device is called a(n) ____ | CATHODE |
| The unit that measures how much electric energy is being used in one second is a(n) ____ | Watt |
| Electric ____ refers to the flow of electricity, along a conductor. | Current |
| Grounding completes a(n) ____ and carries the current safely away. | Electric circuit |
| A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n)______ | Circuit breaker |
| A wavelength is the distance between successful peaks of_____ waves. | Electromagnetic |
| 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 high frequency |
| A ______ is an extremely low level of electricity, that mirrors, the bodies, natural electrical impulses. | Microcurrent |
| Microcurrent can be used to _____ and restore elasticity. | Increase muscle tone |
| The device that prevents excessive current from passing through a circuit is called a(n) _____. | Fuse |
| For safety use no more than_____ plug in each outlet. | 1 |
| Invisible light is the light at either end of the _______ that is invisible to the naked eye. | Visible spectrum of light |
| Ultraviolet A (UVA) light _______ | Has the longest wavelength of the UV light spectrum |
| The application of UV light must be done with the upmost care in a proper manner by qualified professional, because overexposure can lead to skin _________ | Damage and skin cancer |
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princesalove