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Lesson 1.1 Intro

Breadboard A circuit board for wiring temporary circuits, usually used for prototypes or laboratory work. I am not done with my breadboard so I lock it under the table.
Conventional current The direction of current flow associated with positive charge in motion. The current flow direction is from a positive to negative potential, which is in the opposite direction of electron flow. My light bulb current has a conventional current.
Current A movement of electrical charges around a closed path or circuit. I didn't know if a circuit my partner was working on had a current so I unplugged the power source.
Digital A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values. My clock is easy to read because it is digital.
Digital Multi-Meter(DMM) A piece of test equipment used to measure voltage, current, and resistance in an electronic circuit. I always keep a DMM in case I need to measure my circuit.
Resistor color code Coding system of colored stripes on a resistor to indicate the resistor's value and tolerance. I needed to find out which resistor I was using so I checked the resistor color code.
Scientific Notation Numbers entered as a number from one to ten multiplied by a power of ten. Scientific Notation makes it easier to write large numbers.
Solder Metallic alloy of tin and lead that is used to join two metal surfaces. I used a solder to wire two wires together.
Soldering Process of joining two metallic surfaces to make an electrical contact by melting solder (usually tin and lead) across them. While Soldering my wires, I made sure to wear my goggles.
Soldering Iron Tool with an internal heating element used to heat surfaces being soldered to the point where the solder becomes molten. The soldering iron was very hot but I did not touch it.
Engineering notation A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by an appropriate power of ten that is some multiple of three. Engineering Notation is similar to Scientific notation but it has exponents.
Kirchhoff’s Current Law (KCL) The algebraic sum of all currents into and out of any branch point in a circuit must equal zero. I used KCL to measure if the current in my circuit equals up.
Kirchhoff’s Voltage Law (KVL) The algebraic sum of all voltages around any closed path must equal zero. I used KVL to measure the voltage of my parallel circuit.
LED Light-emitting diode. An electronic device that conducts current in one direction only and illuminates when it is conducting. My Christmas tree lost one of its LEDs.
Ohm Unit of resistance. Value of one ohm allow current of one ampere with potential difference of one volt. I needed to measure the number of Ohms in my circuit.
Ohm's law In electric circuits, I=V/R. I did not know the resistance of my circuit so I used Ohm's law to calculate it.
Parallel Circuit One that has two or more branches for separate current from one voltage source. My house has parallel circuits.
Resistance One that has two or more branches for separate current from one voltage source. The resistance in my circuit is very strong so I change it to a different resistor.
Series Circuit One that has only one path current. I built a series circuit to power a small light bulb.
Simulation Testing design function by specifying a set of inputs and observing the resultant outputs. Simulation is generally shown as a series of input and output waveforms. I used a roller coaster simulation to cure my fear of roller coasters.
SI Notation Abbreviation of System International, a system of practical units based on the meter, kilogram, second, ampere, Kelvin, mole, and candela. The system that is not preferred in America and Liberia.
Analog A way of representing some physical quantity, such as temperature or velocity, by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range. The clock in my room is an analog clock.
Created by: 406313