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Ch 13 Exam Review
| Question | Answer |
|---|---|
| The movement of electrons from one atom to another along a conductor is called____. | Electricity |
| Electric wires can be covered with a material that does not transmit electricity such as a rubber or plastic coating. This material is known as_____. | An insulator |
| An apparatus that changes direct current to alternating current is_____. | An inverter |
| The term_____ refers to a rapid and interrupted current, flowing first in one direction and then in the opposite. | Alternating current |
| The unit that measures that pressure or force that pushes the electric current forward through a conductor is_____. | A volt |
| Which unit measures the resistance of an electric current? | Ohm |
| The device that prevents excessive current from passing through a circuit is called_____. | A fuse |
| A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is_____. | A circuit breaker |
| The negative electrode of an of an electrotherapy device is called_____. | A cathode |
| A process that infuses an alkaline product into tissues from the negative pole toward the positive pole called_____. | An anaphoresis |
| Grounding completes __________ and carries the current safely away. | An electric charge |
| All the electrical appliances you use should _______. | Be UL certified |
| When using _______, the active electrode is the electrode used on the area to be treated. | Galvanic current |
| Microcurrent can be used to ______ and restore elasticity. | Increase muscle tone |
| Only licensed professionals should use ________. | Light therapy |
| A wavelength is the distance between successive peaks of ____ waves. | Electromagnetic |
| Invisible light is the light at either end of the ______ that is invisible to the naked eye. | Visible spectrum of light |
| Ultraviolet C (UVC) light________. | Is blocked by the ozone layer |
| Catalysts are substances that speed up _______. | Chemical reactions |
| All lasers work by a process known as selective ________. | Photothermolysis |
| Consistent and direct current, having a positive and negative pole, which produces chemical changes when it passes through the tissues and fluids of the body is known as _______ current. | A galvanic |
| An extremely low level of electricity that mirrors the body's natural electrical impulses is _______. | A microcurrent |
| A medical device that uses multiple colors and wavelengths of focused light to conditions such as excessive hair and spider veins is _______. | An intense pulse light |
| 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 _______. | A tesla high-frequency current |
| A device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin tissue is ______. | A light-emitting diode |
| For safety, use no more than ______ plug(s) in each outlet. | One |
| When ____ is heated, it produces positive and negative ions that cancel the electric charges in the hair that cause static electricity. | Tourmaline |
| 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 _____. | Damage and skin cancer |
| The use of _____ light reduces acne and bacteria on the skin. | Blue |
| The unit that measures how much electric energy is being used in one second is _____. | A watt |
Created by:
katlin.ewing98