Surgical Technology - Chapter 6 Exam Questions with Complete Answers (Rated A+)

Surgical Technology - Chapter 6 Exam Questions with Complete Answers (Rated A+) Hardware - Answers Over term used to describe the components of a computer Central Processing Unit (CPU) - Answers - Coordinates the operations of the computer - Manages computer systems - Helps exchange of data with computer memory Expansion Slots - Answers Provides ability to upgrade the computer with additional memory or devices Ethernet/Network Card - Answers Provides ability to communicate over a network or the Internet Hard Drive - Answers Provides memory to store computer programs and files Electron Theory - Answers Principles that govern the behavior of tiny particles known as electrons - Helps to explain electricity - Serves as the basis for design of all electrical equipment Matter - Answers Anything that has Mass and occupies space - Consists of atoms - Solids, Liquids, Gases Atoms - Answers Composed of: 1. Protons.. + charge 2. Electrons.. - charge 3. Neutrons.. 0 neutral charge - The center is called nucleus which contains protons and neutrons - Electrons float around nucleus in paths called shells or orbits Electricity Describes what? - Answers The free electrons moving or flowing from the ring of one atom to another - Bohr's Theory Conductors - Answers Material that allow the flow of free electrons - Copper is the most common conductor - Water is a conductor of electricity Insulators - Answers Materials that stop the flow of electrons - Rubber & Plastic is most common - HIGH humidity results in static charge leakage - LOW humidity results in formation of sparks Electric Current - Answers Movement of the electric charge Magnetism - Answers Can generate an electric current Electricity - Answers Used to generate magnetism Electromagnets - Answers Metals that become magnetic when a conductor is wrapped around it Volt - Answers Electrical Potential Voltage - Answers Potential energy of electrons at any given time between 2 points Current - Answers - Measured in Amperes (AMPS) - Flow of electric charge or the rate of flow of electrons Power - Answers "The rate at which work is done" - Measured in Watts Load - Answers Device that uses the electricity to perform some type of function Ex: Electrocaudary, Surgical Lamps, Cell Saver Circuit - Answers Path that electricity travels- From the energy source to a device and then back to the energy source Ohm's Law - Answers Scientific law that pertains to electricity - States that the amount of current in a circuit varies directly with the voltage and varies inversely with the resistance Hot Wire - Answers Supplies electrical current Black, blue, red Neutral Wire - Answers Carries electrical current in a circuit away from the device White Ground Wire - Answers Safely convey leaking electrons to the ground to prevent electric shock Green, copper Wall Outlets - Answers 1st prong - Positive 2nd prong - Negative 3rd prong - Ground Direct Current (DC) - Answers Indicates electrical current that flows in one direction from the negative pole to the positive pole Components: 1. Source of Electricity (battery) 2. Control Device (switch) 3. Conductor (wire) 4. Load (bulb) Alternating Current (AC) - Answers Describes the flow of current that reverses direction periodically